| State: | Colorado |
| District Number: | 1 |
| Image Caption: | Interactive map of district boundaries since January 3, 2023 |
| Representative: | Diana DeGette |
| Party: | Democratic |
| Residence: | Denver |
| Distribution Ref: | [1] |
| Percent Urban: | 100 |
| Percent Rural: | 0 |
| Population: | 720,042[2] |
| Population Year: | 2022 |
| Median Income: | $87,684[3] |
| Percent White: | 54.4 |
| Percent Hispanic: | 27.8 |
| Percent Black: | 8.5 |
| Percent Asian: | 3.8 |
| Percent More Than One Race: | 4.2 |
| Percent Other Race: | 1.2 |
| Cpvi: | D+29[4] |
Colorado's 1st congressional district is a congressional district in the U.S. state of Colorado based primarily in the City and County of Denver in the central part of the state. The district includes almost all of the City and County of Denver and the Denver enclaves of Glendale and Holly Hills. A small portion of the City and County of Denver near Four Square Mile is located in Colorado's 6th congressional district.
The district has been represented by Democrat Diana DeGette since 1997. An urban and diverse district based in the heart of Metropolitan Denver and with a Cook Partisan Voting Index rating of D+29, it is the most Democratic district in both Colorado and the Mountain West. Only two Republicans have been elected to the seat since the Great Depression: Dean M. Gillespie was the district's representative from 1944 to 1947; and Mike McKevitt from 1971 to 1973, winning thanks to an ideological split among Denver Democrats. No Republican has even notched 30% of the vote in the district after 1998.
Following the 1990 United States census and consequential redrawing of Colorado's congressional districts, the 1st congressional district consisted of all of the City and County of Denver and parts of Adams, Arapahoe, and Jefferson counties.
Following the 2000 United States census and consequential redistricting of Colorado's congressional districts, the 1st congressional district consisted of all of the City and County of Denver and parts of Arapahoe County, including parts or all of the cities of Englewood, Cherry Hills Village, Sheridan, Aurora, and Glendale.
See also: 2010 United States redistricting cycle. Following the 2010 United States census and consequential redistricting of Colorado's congressional districts, the 1st congressional district consisted of all of the City and County of Denver and parts of Arapahoe County including parts or all of the cities of Englewood, Cherry Hills Village, Sheridan, Aurora, and Glendale. The 1st district also took in additional area in the southwestern suburbs which included parts of Jefferson County and the CDPs of Columbine and Ken Caryl.
See also: 2020 United States redistricting cycle. Following the 2020 United States census and consequential redistricting of Colorado's congressional districts, the 1st congressional district consisted of all of the City and County of Denver and parts of Arapahoe County that are enclaves within the Denver city borders such as Glendale and Holly Hills: the Jefferson County portions were moved to the 7th District, while the southern Arapahoe County suburbs were moved to the Aurora-based 6th District.
| County | Seat | Population | ||
|---|---|---|---|---|
| 5 | Arapahoe | Littleton | 655,808 | |
| 31 | Denver | Denver | 713,252 |
| Election Results[5] | |||
|---|---|---|---|
| Year | Office | Results | |
| 2000 | President | Gore 61–33% | |
| 2004 | President | Kerry 68–31% | |
| 2008 | President | Obama 74–24% | |
| 2012 | President | Obama 69–29% | |
| 2016 | President | Clinton 69–23% | |
| Senate | Bennet 68.8-25.9% | ||
| 2018 | Governor | Polis 73.0-23.7% | |
| 2020 | President | Biden 76–22% | |
| Senate | Hickenlooper 73.7-24.4% | ||
| Member | Party | Years | Cong ress(es) | Electoral history | width=350 | District location |
|---|---|---|---|---|---|---|
| District created March 4, 1893 | ||||||
Lafayette Pence | Populist | March 4, 1893 – March 3, 1895 | Elected in 1892. Lost re-election. | 1893–1915 Adams, Arapahoe, Boulder, Denver, Jackson, Jefferson, Lake, Larimer, Logan, Morgan, Park, Phillips, Sedgwick, Washington, Weld, and Yuma | ||
John F. Shafroth | Republican | March 4, 1895 – March 3, 1897 | Elected in 1894. Changed parties and re-elected in 1896. Re-elected in 1898. Re-elected in 1900. Changed parties and re-elected in 1902. Resigned amid election contest. | |||
| Silver Republican | March 4, 1897 – March 3, 1903 | |||||
| Democratic | March 4, 1903 – February 15, 1904 | |||||
Robert W. Bonynge | Republican | February 16, 1904 – March 3, 1909 | Won election contest. Re-elected in 1904. Re-elected in 1906. Lost re-election. | |||
Atterson W. Rucker | Democratic | March 4, 1909 – March 3, 1913 | Elected in 1908. Re-elected in 1910. Lost renomination. | |||
George Kindel | Democratic | March 4, 1913 – March 3, 1915 | Elected in 1912. Retired to run for U.S. senator. | |||
Benjamin Hilliard | Democratic | March 4, 1915 – March 3, 1919 | Elected in 1914. Re-elected in 1916. Lost re-election. | 1915–1923 | ||
William Vaile | Republican | March 4, 1919 – July 2, 1927 | Elected in 1918. Re-elected in 1920. Re-elected in 1922. Re-elected in 1924. Re-elected in 1926. Died. | |||
| 1923–1965 | ||||||
| Vacant | July 2, 1927 – November 15, 1927 | |||||
S. Harrison White | Democratic | November 15, 1927 – March 3, 1929 | Elected to finish Vaile's term. Lost re-election. | |||
William R. Eaton | Republican | March 4, 1929 – March 3, 1933 | Elected in 1928. Re-elected in 1930. Lost re-election. | |||
Lawrence Lewis | Democratic | March 4, 1933 – December 9, 1943 | Elected in 1932. Re-elected in 1934. Re-elected in 1936. Re-elected in 1938. Re-elected in 1940. Re-elected in 1942. Died. | |||
| Vacant | December 9, 1943 – March 7, 1944 | |||||
Dean M. Gillespie | Republican | March 7, 1944 – January 3, 1947 | Elected to finish Lewis's term. Re-elected later in 1944. Lost re-election. | |||
John A. Carroll | Democratic | January 3, 1947 – January 3, 1951 | Elected in 1946. Re-elected in 1948. Retired to run for U.S. senator. | |||
Byron Rogers | Democratic | January 3, 1951 – January 3, 1971 | Elected in 1950. Re-elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Lost renomination. | |||
| 1965–1973 | ||||||
Mike McKevitt | Republican | January 3, 1971 – January 3, 1973 | Elected in 1970. Lost re-election. | |||
Pat Schroeder | Democratic | January 3, 1973 – January 3, 1997 | Elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Re-elected in 1992. Re-elected in 1994. Retired. | 1973–1983 Parts of Arapahoe and Denver | ||
| 1983–1993 Parts of Arapahoe and Denver | ||||||
| 1993–2003 Denver; parts of Adams and Arapahoe | ||||||
Diana DeGette | Democratic | January 3, 1997 – present | Elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Re-elected in 2018. Re-elected in 2020. Re-elected in 2022. | |||
| 2003–2013 Denver; parts of Arapahoe | ||||||
| 2013–2023 Denver; parts of Arapahoe and Jefferson | ||||||
| 2023–present Denver; parts of Arapahoe (enclaves only) | ||||||
See main article: 1962 United States House of Representatives elections in Colorado.
See main article: 1976 United States House of Representatives elections in Colorado.
See main article: 1978 United States House of Representatives elections in Colorado.
See main article: 1982 United States House of Representatives elections in Colorado.
See main article: 1984 United States House of Representatives elections in Colorado.
See main article: 1988 United States House of Representatives elections in Colorado.
See main article: 1990 United States House of Representatives elections in Colorado.
See main article: 2000 United States House of Representatives elections in Colorado.
See main article: 2002 United States House of Representatives elections in Colorado.
See main article: 2004 United States House of Representatives elections in Colorado.
See main article: 2006 United States House of Representatives elections in Colorado.
See main article: 2008 United States House of Representatives elections in Colorado.
See main article: 2010 United States House of Representatives elections in Colorado.
See main article: 2012 United States House of Representatives elections in Colorado.
See main article: 2014 United States House of Representatives elections in Colorado.
See main article: 2016 United States House of Representatives elections in Colorado.
See main article: 2018 United States House of Representatives elections in Colorado.
See main article: 2020 United States House of Representatives elections in Colorado.
See main article: 2022 United States House of Representatives elections in Colorado.