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AL

Summary of Alabama's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1818–1819	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1819–1823	Created due to statehood Eliminated due to 1820 census	1
		1841–1843	Created due to redistricting Eliminated due to redistricting and 1840 census	5
		1873–1877	Created due to 1870 census Eliminated due to redistricting	2
		1913–1917	Created due to 1910 census Eliminated due to redistricting	1
		1963–1965	Created due to redistricting and 1960 census Eliminated due to redistricting	8
1st	Active	1823–1841	Created due to 1820 census Eliminated due to redistricting	1
		1843–1963	Created due to redistricting and 1840 census Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
2nd	Active	1823–1841	Created due to 1820 census Eliminated due to redistricting	1
		1843–1963	Created due to redistricting and 1840 census Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
3rd	Active	1823–1841	Created due to 1820 census Eliminated due to redistricting	1
		1843–1963	Created due to redistricting and 1840 census Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
4th	Active	1833–1841	Created due to 1830 census Eliminated due to redistricting	1
		1843–1963	Created due to redistricting and 1840 census Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
5th	Active	1833–1841	Created due to 1830 census Eliminated due to redistricting	1
		1843–1963	Created due to redistricting and 1840 census Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
6th	Active	1843–1963	Created due to 1840 census Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
7th	Active	1843–1863	Created due to 1840 census Eliminated due to 1860 census	1
		1877–1963	Created due to redistricting Eliminated due to redistricting and 1960 census	1
		1965–present	Created due to redistricting	1
8th	Obsolete	1877–1963	Created due to redistricting Eliminated due to redistricting and 1960 census	1
		1965–1973	Created due to redistricting Eliminated due to 1970 census	1
9th	Obsolete	1893–1963	Created due to 1890 census Eliminated due to redistricting and 1960 census	1
10th	Obsolete	1917–1933	Created due to redistricting Eliminated due to 1930 census	1

AK

Summary of Alaska's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1906–1959	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Active	1959–present	Created due to statehood	1

AZ

Summary of Arizona's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1863–1912	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1912–1943	Created due to statehood	1
		1943–1949	Second at-large seat added due to 1820 census Eliminated due to redistricting	2
1st	Active	1949–present	Created due to redistricting	1
2nd	Active	1949–present		1
3rd	Active	1963–present	Created due to 1960 census	1
4th	Active	1973–present	Created due to 1970 census	1
5th	Active	1983–present	Created due to 1980 census	1
6th	Active	1993–present	Created due to 1990 census	1
7th	Active	2003–present	Created due to 2000 census	1
8th	Active	2003–present		1
9th	Active	2013–present	Created due to 2010 census	1

AR

Summary of Arkansas's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1819–1836	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1836–1853	Created due to statehood Eliminated due to 1850 census	1
		1873–1875	Created due to 1870 census Eliminated due to redistricting	1
		1883–1885	Created due to 1880 census Eliminated due to redistricting	1
1st	Active	1853–present	Created due to 1850 census	1
2nd	Active	1853–present		1
3rd	Active	1863–present	Created due to 1860 census	1
4th	Active	1875–present	Created due to redistricting	1
5th	Obsolete	1885–1963	Created due to redistricting Eliminated due to 1960 census	1
6th	Obsolete	1893–1963	Created due to 1890 census Eliminated due to 1960 census	1
7th	Obsolete	1903–1953	Created due to 1900 census Eliminated due to 1950 census	1

CA

Summary of California's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1849–1861	Created due to statehood	2
		1861–1865	Third at-large seat added due to Congressional Act Eliminated due to redistricting	3
		1883–1885	Created due to 1880 census Eliminated due to redistricting	2
1st	Active	1865–present	Created due to redistricting	1
2nd	Active	1865–present		1
3rd	Active	1865–present		1
4th	Active	1873–present	Created due to 1870 census	1
5th	Active	1885–present	Created due to redistricting	1
6th	Active	1885–present		1
7th	Active	1893–present	Created due to 1890 census	1
8th	Active	1903–present	Created due to 1900 census	1
9th	Active	1913–present	Created due to 1910 census	1
10th	Active	1913–present		1
11th	Active	1913–present		1
12th	Active	1933–present	Created due to 1930 census	1
13th	Active	1933–present		1
14th	Active	1933–present		1
15th	Active	1933–present		1
16th	Active	1933–present		1
17th	Active	1933–present		1
18th	Active	1933–present		1
19th	Active	1933–present		1
20th	Active	1933–present		1
21st	Active	1943–present	Created due to 1940 census	1
22nd	Active	1943–present		1
23rd	Active	1943–present		1
24th	Active	1953–present	Created due to 1950 census	1
25th	Active	1953–present		1
26th	Active	1953–present		1
27th	Active	1953–present		1
28th	Active	1953–present		1
29th	Active	1953–present		1
30th	Active	1953–present		1
31st	Active	1963–present	Created due to 1960 census	1
32nd	Active	1963–present		1
33rd	Active	1963–present		1
34th	Active	1963–present		1
35th	Active	1963–present		1
36th	Active	1963–present		1
37th	Active	1963–present		1
38th	Active	1963–present		1
39th	Active	1973–present	Created due to 1970 census	1
40th	Active	1973–present		1
41st	Active	1973–present		1
42nd	Active	1973–present		1
43rd	Active	1973–present		1
44th	Active	1983–present	Created due to 1980 census	1
45th	Active	1983–present		1
46th	Active	1993–present	Created due to 1990 census	1
47th	Active	1993–present		1
48th	Active	1993–present		1
49th	Active	1993–present		1
50th	Active	1993–present		1
51st	Active	1993–present		1
52nd	Active	1993–present		1
53rd	Active To be eliminated	2003–2023	Created due to 2000 census To be eliminated due to 2020 census	1

CO

Summary of Colorado's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1861–1876	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1876–1893	Created due to statehood Eliminated due to 1890 census	1
		1903–1913	Created due to 1900 census	1
		1913–1915	Second at-large seat added due to 1910 census Eliminated due to redistricting	2
1st	Active	1893–present	Created due to 1890 census	1
2nd	Active	1893–present		1
3rd	Active	1915–present	Created due to redistricting	1
4th	Active	1915–present		1
5th	Active	1973–present	Created due to 1970 census	1
6th	Active	1983–present	Created due to 1980 census	1
7th	Active	2003–present	Created due to 2000 census	1
8th	To be created	From 2023	To be created due to 2020 census	1

CT

Summary of Connecticut's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1789–1793	Created due to statehood	5
		1793–1823	Sixth & Seventh at-large seat added due to 1790 census	7
		1823–1837	Seventh at-large seat eliminated due to 1820 census Eliminated due to redistricting	6
		1903–1913	Created due to 1900 census Eliminated due to redistricting	1
		1933–1965	Created due to 1930 census Eliminated due to redistricting	1
1st	Active	1837–present	Created due to redistricting	1
2nd	Active	1837–present		1
3rd	Active	1837–present		1
4th	Active	1837–present		1
5th	Active	1837–1843	Created due to redistricting Eliminated due to 1840 census	1
		1913–present	Created due to redistricting	1
6th	Obsolete	1837–1843	Created due to redistricting Eliminated due to 1840 census	1
		1965–2003	Created due to redistricting Eliminated due to 2000 census	1

DE

Summary of Delaware's congressional districts

District	Status	Years active	Note	Number of members
At-large	Active	1789–1813	Created due to statehood	1
		1813–1823	Second at-large seat added due to 1810 census	2
		1823–present	Second at-large seat eliminated due to 1820 census	1

FL

Summary of Florida's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1822–1845	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1845–1873	Created due to statehood	1
		1873–1875	Second at-large seat added due to 1870 census Eliminated due to redistricting	2
		1913–1915	Created due to 1910 census Eliminated due to redistricting	1
		1933–1937	Created due to 1930 census Eliminated due to redistricting	1
		1943–1945	Created due to 1940 census Eliminated due to redistricting	1
1st	Active	1875–present	Created due to redistricting	1
2nd	Active	1875–present		1
3rd	Active	1903–present	Created due to 1900 census	1
4th	Active	1915–present	Created due to redistricting	1
5th	Active	1937–present	Created due to redistricting	1
6th	Active	1945–present	Created due to redistricting	1
7th	Active	1953–present	Created due to 1950 census	1
8th	Active	1953–present		1
9th	Active	1963–present	Created due to 1960 census	1
10th	Active	1963–present		1
11th	Active	1963–present		1
12th	Active	1963–present		1
13th	Active	1973–present	Created due to 1970 census	1
14th	Active	1973–present		1
15th	Active	1973–present		1
16th	Active	1983–present	Created due to 1980 census	1
17th	Active	1983–present		1
18th	Active	1983–present		1
19th	Active	1983–present		1
20th	Active	1993–present	Created due to 1990 census	1
21st	Active	1993–present		1
22nd	Active	1993–present		1
23rd	Active	1993–present		1
24th	Active	2003–present	Created due to 2000 census	1
25th	Active	2003–present		1
26th	Active	2013–present	Created due to 2010 census	1
27th	Active	2013–present		1
28th	To be created	From 2023	To be created due to 2020 census	1

GA

Summary of Georgia's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1793–1803	Created due to redistricting and 1790 census	2
		1803–1813	Third & fourth at-large seats added due to 1800 census	4
		1813–1823	Fifth & sixth at-large seats added due to 1810 census	6
		1823–1827	Seventh at-large seat added due to 1820 census Eliminated due to redistricting	7
		1829–1833	Created due to redistricting	7
		1833–1843	Eighth & ninth at-large seats added due to 1830 census	9
		1843–1845	Ninth at-large seat eliminated due to 1830 census Eliminated due to redistricting	8
		1883–1885	Created due to 1880 census Eliminated due to redistricting	1
1st	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
2nd	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
3rd	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
4th	Active	1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
5th	Active	1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
6th	Active	1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
7th	Active	1827–1829	Created due to redistricting Eliminated due to redistricting	1
		1845–present	Created due to redistricting	1
8th	Active	1845–1863	Created due to redistricting Eliminated due to 1860 census	1
		1873–present	Created due to 1870 census	1
9th	Active	1873–present		1
10th	Active	1885–present	Created due to redistricting	1
11th	Active	1893–1933	Created due to 1890 census Eliminated due to 1930 census	1
		1993–present	Created due to 1990 census	1
12th	Active	1913–1933	Created due to 1910 census Eliminated due to 1930 census	1
		2003–present	Created due to 2000 census	1
13th	Active	2003–present		1
14th	Active	2013–present	Created due to 2010 census	1

HI

Summary of Hawaii's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1900–1959	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1959–1963	Created due to statehood	1
		1963–1971	Second at-large seat added due to 1960 census Eliminated due to redistricting	2
1st	Active	1971–present	Created due to redistricting	1
2nd	Active	1971–present		1

ID

Summary of Idaho's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1864–1890	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1890–1913	Created due to statehood	1
		1913–1919	Second at-large seat added due to 1910 census Eliminated due to redistricting	2
1st	Active	1919–present	Created due to redistricting	1
2nd	Active	1919–present		1

IL

Summary of Illinois's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1812–1818	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1818–1833	Created due to statehood Eliminated due to 1830 census	1
		1863–1873	Created due to 1860 census Eliminated due to redistricting and 1870 census	1
		1893–1895	Created due to 1890 census Eliminated due to redistricting	2
		1913–1943	Created due to 1910 census	2
		1943–1949	Second at-large seat eliminated due to 1940 census Eliminated due to redistricting	1
1st	Active	1833–present	Created due to 1830 census	1
2nd	Active	1833–present		1
3rd	Active	1833–present		1
4th	Active	1843–present	Created due to 1840 census	1
5th	Active	1843–present		1
6th	Active	1843–present		1
7th	Active	1843–present		1
8th	Active	1853–present	Created due to 1850 census	1
9th	Active	1853–present		1
10th	Active	1863–present	Created due to 1860 census	1
11th	Active	1863–present		1
12th	Active	1863–present		1
13th	Active	1863–present		1
14th	Active	1873–present	Created due to 1870 census	1
15th	Active	1873–present		1
16th	Active	1873–present		1
17th	Active	1873–present		1
18th	Active To be eliminated	1873–2023	Created due to 1870 census To be eliminated due to 2020 census	1
19th	Obsolete	1873–2013	Created due to 1870 census Eliminated due to 2010 census	1
20th	Obsolete	1883–2003	Created due to 1880 census Eliminated due to 2000 census	1
21st	Obsolete	1895–1993	Created due to redistricting Eliminated due to 1990 census	1
22nd	Obsolete	1895–1993		1
23rd	Obsolete	1903–1983	Created due to 1900 census Eliminated due to 1980 census	1
24th	Obsolete	1903–1983		1
25th	Obsolete	1903–1963	Created due to 1900 census Eliminated due to 1960 census	1
26th	Obsolete	1949–1953	Created due to redistricting Eliminated due to 1950 census	1

IN

Summary of Indiana's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1805–1816	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1816–1823	Created due to statehood Eliminated due to 1820 census	1
		1873–1875	Created due to 1860 census Eliminated due to redistricting	2
1st	Active	1823–present	Created due to 1820 census	1
2nd	Active	1823–present		1
3rd	Active	1823–present		1
4th	Active	1833–present	Created due to 1830 census	1
5th	Active	1833–present		1
6th	Active	1833–present		1
7th	Active	1833–present		1
8th	Active	1843–present	Created due to 1840 census	1
9th	Active	1843–present		1
10th	Active	1843–2003	Created due to 1840 census Eliminated due to 2000 census	1
11th	Active	1853–1983	Created due to 1850 census Eliminated due to 1980 census	1
12th	Active	1875–1943	Created due to redistricting Eliminated due to 1940 census	1
13th	Active	1875–1933	Created due to redistricting Eliminated due to 1930 census	1

IA

Summary of Iowa's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1838–1846	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1846–1847	Created due to statehood Eliminated due to redistricting	2
1st	Active	1847–present	Created due to redistricting	1
2nd	Active	1847–present		1
3rd	Active	1863–present	Created due to 1860 census	1
4th	Active	1863–present		1
5th	Obsolete	1863–2013	Created due to 1860 census Eliminated due to 2010 census	1
6th	Obsolete	1863–1993	Created due to 1860 census Eliminated due to 1990 census	1
7th	Obsolete	1873–1973	Created due to 1870 census Eliminated due to 1970 census	1
8th	Obsolete	1873–1963	Created due to 1870 census Eliminated due to 1960 census	1
9th	Obsolete	1873–1943	Created due to 1870 census Eliminated due to 1940 census	1
10th	Obsolete	1883–1933	Created due to 1880 census Eliminated due to 1930 census	1
11th	Obsolete	1883–1933		1

KS

Summary of Kansas's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1854–1861	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1861–1873	Created due to statehood	1
		1873–1875	Second & third at-large seats added due to 1870 census Eliminated due to redistricting	3
		1883–1885	Created due to 1880 census Eliminated due to redistricting	4
		1893–1907	Created due to 1890 census Eliminated due to redistricting	1
1st	Active	1875–present	Created due to redistricting	1
2nd	Active	1875–present		1
3rd	Active	1875–present		1
4th	Active	1885–present	Created due to redistricting	1
5th	Obsolete	1885–1993	Created due to redistricting Eliminated due to 1990 census	1
6th	Obsolete	1885–1963	Created due to redistricting Eliminated due to 1960 census	1
7th	Obsolete	1885–1943	Created due to redistricting Eliminated due to 1940 census	1
8th	Obsolete	1907–1933	Created due to redistricting Eliminated due to 1930 census	1

KY

Summary of Kentucky's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1933–1935	Created due to redistricting and 1930 census Eliminated due to redistricting	9
1st	Active	1792–1933	Created due to statehood (separated from Virginia) Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
2nd	Active	1792–1933	Created due to statehood (separated from Virginia) Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
3rd	Active	1803–1933	Created due to 1820 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
4th	Active	1803–1933	Created due to 1820 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
5th	Active	1803–1933	Created due to 1820 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
6th	Active	1803–1933	Created due to 1820 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
7th	Obsolete	1813–1933	Created due to 1810 census Eliminated due to redistricting and 1930 census	1
		1935–1993	Created due to redistricting Eliminated due to 1990 census	1
8th	Obsolete	1813–1933	Created due to 1810 census Eliminated due to redistricting and 1930 census	1
		1935–1963	Created due to redistricting Eliminated due to 1960 census	1
9th	Obsolete	1813–1933	Created due to 1810 census Eliminated due to redistricting and 1930 census	1
		1935–1953	Created due to redistricting Eliminated due to 1950 census	1
10th	Obsolete	1813–1863	Created due to 1810 census Eliminated due to 1860 census	1
		1873–1933	Created due to 1870 census Eliminated due to 1930 census	1
11th	Obsolete	1823–1843	Created due to 1820 census Eliminated due to 1840 census	1
		1883–1933	Created due to 1880 census Eliminated due to 1930 census	1
12th	Obsolete	1823–1843	Created due to 1820 census Eliminated due to 1840 census	1
13th	Obsolete	1833–1843	Created due to 1830 census Eliminated due to 1840 census	1

LA

Summary of Louisiana's congressional districts

District	Status	Years active	Note	Number of members
Orleans Territory	Obsolete	1806–1812	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1812–1823	Created due to statehood Eliminated due to 1820 census	1
		1873–1875	Created due to 1870 census Eliminated due to redistricting	1
1st	Active	1823–present	Created due to 1820 census	1
2nd	Active	1823–present		1
3rd	Active	1823–present		1
4th	Active	1843–present	Created due to 1840 census	1
5th	Active	1863–present	Created due to 1860 census	1
6th	Active	1875–present	Created due to redistricting	1
7th	Obsolete	1903–2013	Created due to 1900 census Eliminated due to 2010 census	1
8th	Obsolete	1913–1993	Created due to 1910 census Eliminated due to 1990 census	1

ME

Summary of Maine's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1820–1821	Created due to statehood (separated from Massachusetts) Eliminated due to more seats being apportioned (moved from Massachusetts)	1
		1883–1885	Created due to redistricting and 1880 census Eliminated due to redistricting	4
1st	Active	1821–1883	Seat moved from Massachusetts Eliminated due to redistricting and 1880 census	1
		1885–present	Created due to redistricting	1
2nd	Active	1821–1883	Seat moved from Massachusetts Eliminated due to redistricting and 1880 census	1
		1885–present	Created due to redistricting	1
3rd	Obsolete	1821–1883	Seat moved from Massachusetts Eliminated due to redistricting and 1880 census	1
		1885–1963	Created due to redistricting	1
4th	Obsolete	1821–1883	Seat moved from Massachusetts Eliminated due to redistricting and 1880 census	1
		1885–1933	Created due to redistricting	1
5th	Obsolete	1821–1883	Seat moved from Massachusetts Eliminated due to 1880 census	1
6th	Obsolete	1821–1863	Seat moved from Massachusetts Eliminated due to 1860 census	1
7th	Obsolete	1821–1853	Seat moved from Massachusetts Eliminated due to 1850 census	1
8th	Obsolete	1833–1843	Created due to 1830 census Eliminated due to 1840 census	1

MD

Summary of Maryland's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1963–1967	Created due to 1960 census Eliminated due to redistricting	1
1st	Active	1789–present	Created due to statehood	1
2nd	Active	1789–present		1
3rd	Active	1789–present		1
4th	Active	1789–1835	Created due to statehood	1
		1835–1843	Second seat added due to redistricting	2
		1843–present	Second seat eliminated due to 1840 census	1
5th	Active	1789–1803	Created due to statehood	1
		1803–1833	Second seat added due to 1800 census	2 (elected separately)
		1833–present	Second seat eliminated due to 1830 census	1
6th	Active	1789–1863	Created due to statehood Eliminated due to 1860 census	1
		1873–present	Created due to 1870 census	1
7th	Active	1793–1843	Created due to 1790 census Eliminated due to 1840 census	1
		1953–present	Created due to 1950 census	1
8th	Active	1793–1835	Created due to 1790 census Eliminated due to redistricting	1
		1967–present	Created due to redistricting	1

MA

Summary of Massachusetts's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1793–1795	Created due to redistricting and 1790 census Eliminated due to redistricting	1
1st	Active	1789–1793	Created due to statehood	1
		1793–1795	Second, third & fourth seats added due to redistricting and 1790 census	4
		1795–present	Second, third & fourth seats eliminated due to redistricting	1
2nd	Active	1789–1793	Created due to statehood	1
		1793–1795	Second, third & fourth seats added due to redistricting and 1790 census	4
		1795–present	Second, third & fourth seats eliminated due to redistricting	1
3rd	Active	1789–1793	Created due to statehood	1
		1793–1795	Second seat added due to redistricting and 1790 census	2
		1795–present	Second seat eliminated due to redistricting	1
4th	Active	1789–1793	Created due to statehood	1
		1793–1795	Second & third seats added due to redistricting and 1790 census	3
		1795–present	Second & third seats eliminated due to redistricting	1
5th	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1795–present	Created due to redistricting	1
6th	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1795–present	Created due to redistricting	1
7th	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1795–present	Created due to redistricting	1
8th	Active	1789–1793	Created due to statehood Eliminated due to redistricting and 1790 census	1
		1795–present	Created due to redistricting	1
9th	Active	1795–present		1
10th	Obsolete	1795–2013	Created due to redistricting Eliminated due to 2010 census	1
11th	Obsolete	1795–1843	Created due to redistricting Eliminated due to 1840 census	1
		1853–1863	Created due to 1850 census Eliminated due to 1860 census	1
		1873–1993	Created due to 1870 census Eliminated due to 1990 census	1
12th	Obsolete	1795–1843	Created due to redistricting Eliminated due to 1840 census	1
		1883–1983	Created due to 1880 census Eliminated due to 1980 census	1
13th	Obsolete	1795–1833	Created due to redistricting Eliminated due to 1830 census	1
		1893–1963	Created due to 1890 census Eliminated due to 1960 census	1
14th	Obsolete	1795–1821	Created due to redistricting Seat moved to Maine (separated from Massachusetts)	1
		1903–1963	Created due to 1900 census Eliminated due to 1960 census	1
15th	Obsolete	1803–1821	Created due to 1800 census Seat moved to Maine (separated from Massachusetts)	1
		1913–1943	Created due to 1910 census Eliminated due to 1940 census	1
16th	Obsolete	1803–1821	Created due to 1800 census Seat moved to Maine (separated from Massachusetts)	1
		1913–1933	Created due to 1910 census Eliminated due to 1930 census	1
17th	Obsolete	1803–1821	Created due to 1800 census Seat moved to Maine (separated from Massachusetts)	1
18th	Obsolete	1813–1821	Created due to 1810 census Seat moved to Maine (separated from Massachusetts)	1
19th	Obsolete	1813–1821		1
20th	Obsolete	1813–1821		1

MI

Summary of Michigan's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1819–1837	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1837–1843	Created due to statehood Eliminated due to 1840 census	1
		1913–1915	Created due to 1910 census Eliminated due to redistricting	1
		1963–1965	Created due to 1960 census Eliminated due to redistricting	1
1st	Active	1843–present	Created due to 1840 census	1
2nd	Active	1843–present		1
3rd	Active	1843–present		1
4th	Active	1853–present	Created due to 1850 census	1
5th	Active	1863–present	Created due to 1860 census	1
6th	Active	1863–present		1
7th	Active	1873–present	Created due to 1870 census	1
8th	Active	1873–present		1
9th	Active	1873–present		1
10th	Active	1883–present	Created due to 1880 census	1
11th	Active	1883–present		1
12th	Active	1893–present	Created due to 1890 census	1
13th	Active	1915–present	Created due to redistricting	1
14th	Active To be eliminated	1933–2023	Created due to 1930 census To be eliminated due to 2020 census	1
15th	Obsolete	1933–2013	Created due to 1930 census Eliminated due to 2010 census	1
16th	Obsolete	1933–2003	Created due to 1930 census Eliminated due to 2000 census	1
17th	Obsolete	1933–1993	Created due to 1930 census Eliminated due to 1990 census	1
18th	Obsolete	1953–1993	Created due to 1950 census Eliminated due to 1990 census	1
19th	Obsolete	1965–1983	Created due to redistricting Eliminated due to 1980 census	1

MN

Summary of Minnesota's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1849–1858	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1858–1863	Created due to statehood Eliminated due to redistricting	2
		1913–1915	Created due to 1910 census Eliminated due to redistricting	1
		1933–1935	Created due to redistricting and 1930 census Eliminated due to redistricting	9
1st	Active	1863–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
2nd	Active	1863–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
3rd	Active	1873–1933	Created due to 1870 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
4th	Active	1883–1933	Created due to 1880 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
5th	Active	1883–1933	Created due to 1880 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
6th	Active	1893–1933	Created due to 1890 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
7th	Active	1893–1933	Created due to 1890 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
8th	Active	1903–1933	Created due to 1900 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
9th	Obsolete	1903–1933	Created due to 1900 census Eliminated due to redistricting and 1930 census	1
		1935–1963	Created due to redistricting Eliminated due to 1960 census	1
10th	Obsolete	1915–1933	Created due to redistricting Eliminated due to 1930 census	1

MS

Summary of Mississippi's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1801–1817	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1817–1833	Created due to statehood	1
		1833–1843	Second seat added due to 1830 census	2
		1843–1847	Third & fourth seats added due to 1840 census Eliminated due to redistricting	4
		1853–1855	Created due to 1850 census Eliminated due to redistricting	1
1st	Active	1847–present	Created due to redistricting	1
2nd	Active	1847–present		1
3rd	Active	1847–present		1
4th	Active	1847–present		1
5th	Obsolete	1855–2003	Created due to redistricting Eliminated due to 2000 census	1
6th	Obsolete	1873–1963	Created due to 1870 census Eliminated due to 1960 census	1
7th	Obsolete	1883–1953	Created due to 1880 census Eliminated due to 1950 census	1
8th	Obsolete	1903–1933	Created due to 1900 census Eliminated due to 1930 census	1

MO

Summary of Missouri's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1812–1821	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1821–1833	Created due to statehood	1
		1833–1843	Second seat added due to 1830 census	2
		1843–1847	Third, fourth & fifth seats added due to 1840 census Eliminated due to redistricting	5
		1933–1935	Created due to redistricting and 1930 census Eliminated due to redistricting	13
1st	Active	1847–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
2nd	Active	1847–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
3rd	Active	1847–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
4th	Active	1847–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
5th	Active	1847–1933	Created due to redistricting Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
6th	Active	1853–1933	Created due to 1850 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
7th	Active	1853–1933	Created due to 1850 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
8th	Active	1863–1933	Created due to 1860 census Eliminated due to redistricting and 1930 census	1
		1935–present	Created due to redistricting	1
9th	Obsolete	1863–1933	Created due to 1860 census Eliminated due to redistricting and 1930 census	1
		1935–2013	Created due to redistricting Eliminated due to 2010 census	1
10th	Obsolete	1873–1933	Created due to 1870 census Eliminated due to redistricting and 1930 census	1
		1935–1983	Created due to redistricting Eliminated due to 1980 census	1
11th	Obsolete	1873–1933	Created due to 1820 census Eliminated due to redistricting and 1930 census	1
		1935–1963	Created due to redistricting Eliminated due to 1960 census	1
12th	Obsolete	1873–1933	Created due to 1820 census Eliminated due to redistricting and 1930 census	1
		1935–1953	Created due to redistricting Eliminated due to 1950 census	1
13th	Obsolete	1873–1933	Created due to 1830 census Eliminated due to redistricting and 1930 census	1
		1935–1953	Created due to redistricting Eliminated due to 1950 census	1
14th	Obsolete	1883–1933	Created due to 1880 census Eliminated due to 1930 census	1
15th	Obsolete	1893–1933	Created due to 1880 census Eliminated due to 1930 census	1
16th	Obsolete	1903–1933	Created due to 1880 census Eliminated due to 1930 census	1

MT

Summary of Montana's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1864–1889	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Active To be eliminated	1889–1913	Created due to statehood	1
		1913–1919	Second at-large seat added due to 1910 census Eliminated due to redistricting	2
		1993–2023	Created due to 1990 census To be eliminated due to 2020 census	1
1st	Obsolete To be created	1919–1993	Created due to redistricting Eliminated due to 1990 census	1
		From 2023	To be created due to 2020 census	1
2nd	Obsolete To be created	1919–1993	Created due to redistricting Eliminated due to 1990 census	1
		From 2023	To be created due to 2020 census	1

NE

Summary of Nebraska's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1855–1867	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1867–1883	Created due to statehood Eliminated due to 1880 census	1
1st	Active	1883–present	Created due to 1880 census	1
2nd	Active	1883–present		1
3rd	Active	1883–present		1
4th	Obsolete	1893–1963	Created due to 1890 census Eliminated due to 1960 census	1
5th	Obsolete	1893–1943	Created due to 1890 census Eliminated due to 1940 census	1
6th	Obsolete	1893–1933	Created due to 1890 census Eliminated due to 1930 census	1

NV

Summary of Nevada's congressional districts

District	Status	Years active	Note	Number of members
Territory	Obsolete	1861–1864	Created as a non-voting delegate was granted by Congress Eliminated due to statehood	1
At-large	Obsolete	1864–1983	Created due to statehood Eliminated due to 1980 census	1
1st	Active	1983–present	Created due to 1980 census	1
2nd	Active	1983–present		1
3rd	Active	2003–present	Created due to 2000 census	1
4th	Active	2013–present	Created due to 2010 census	1

NH

Summary of New Hampshire's congressional districts

District	Status	Years active	Note	Number of members
At-large	Obsolete	1789–1793	Created due to statehood	3
		1793–1803	Fourth at-large seat added due to 1790 census	4
		1803–1813	Fifth at-large seat added due to 1800 census	5
		1813–1833	Sixth at-large seat added due to 1810 census	6
		1833–1843	Sixth at-large seat eliminated due to 1830 census	5
		1843–1847	Fifth at-large seat eliminated due to 1840 census Eliminated due to redistricting	4
1st	Active	1847–present	Created due to redistricting	1
2nd	Active	1847–present		1
3rd	Obsolete	1847–1883	Created due to redistricting Eliminated due to 1880 census	1
4th	Obsolete	1847–1853	Created due to redistricting Eliminated due to 1850 census	1

Cartograms