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 all of the City and County of Denver, and the Denver enclaves of Glendale and Holly Hills.
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.[4] 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.
^"Congressional Districts Relationship Files (State-based)". United States Census Bureau. Archived from the original on March 27, 2019. Retrieved January 24, 2021 – via Wayback Machine.
^"My Congressional District". United States Census Bureau. Powered by American Community Survey and County Business Patterns. Archived from the original on December 28, 2018. Retrieved October 5, 2023.{{cite web}}: CS1 maint: others (link)
^"My Congressional District". United States Census Bureau. Powered by American Community Survey and County Business Patterns. Archived from the original on December 28, 2018. Retrieved October 5, 2023.{{cite web}}: CS1 maint: others (link)
^ ab"2022 Cook PVI: District Map and List". Cook Political Report. July 12, 2022. Retrieved January 10, 2023.
^"Dave's Redistricting". Retrieved August 25, 2021.
^ abcdefghijklmnopqrs"CO - District 01 - History". Our Campaigns. Archived from the original on July 15, 2018. Retrieved January 25, 2021.
^"Statistics of the Congressional Election of November 2, 1926" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Tyler Page. Archived (PDF) from the original on January 5, 2007. Retrieved January 28, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional and Presidential Election of November 6, 1928" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Tyler Page. March 25, 1929. Archived (PDF) from the original on January 5, 2007. Retrieved January 28, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 4, 1930" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Tyler Page. January 8, 1931. Archived (PDF) from the original on January 5, 2007. Retrieved January 28, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional and Presidential Election of November 8, 1932" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by George D. Ellis under direction of South Trimble. February 3, 1933. Archived (PDF) from the original on January 5, 2007. Retrieved January 27, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 6, 1934" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Leroy D. Brandon under direction of South Trimble. April 11, 1935. Archived (PDF) from the original on January 5, 2007. Retrieved January 27, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 3, 1936" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Leroy D. Brandon under direction of South Trimble. December 18, 1936. Archived (PDF) from the original on January 5, 2007. Retrieved January 26, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 8, 1938" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Leroy D. Brandon under direction of South Trimble. July 29, 1940. Archived (PDF) from the original on January 5, 2007. Retrieved January 26, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 5, 1940" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Leroy D. Brandon under direction of South Trimble. January 15, 1941. Archived (PDF) from the original on January 5, 2007. Retrieved January 26, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 3, 1942" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Graf under direction of South Trimble. January 30, 1943. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 7, 1944" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Graf under direction of South Trimble. March 1, 1945. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 5, 1946" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Graf under direction of John Andrews. February 1, 1947. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 2, 1948" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Graf under direction of Ralph R. Roberts. March 1, 1949. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 7, 1950" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by William Graf under direction of Ralph R. Roberts. January 11, 1951. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 4, 1952" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Earl Rockwood under direction of Lyle O. Snader. May 12, 1953. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 2, 1954" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Earl Rockwood under direction of Ralph R. Roberts. October 15, 1955. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 6, 1956" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources under direction of Ralph R. Roberts. September 15, 1958. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 4, 1958" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of Ralph R. Roberts. March 16, 1959. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 8, 1960" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of Ralph R. Roberts. April 15, 1961. Archived (PDF) from the original on January 5, 2007. Retrieved January 25, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 6, 1962" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of Ralph R. Roberts. March 16, 1963. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 3, 1964" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of Ralph R. Roberts. August 15, 1965. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 8, 1966" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of W. Pat Jennings. March 31, 1967. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 5, 1968" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of W. Pat Jennings. July 1, 1969. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 3, 1970" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of W. Pat Jennings. May 1, 1971. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 7, 1972" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of W. Pat Jennings. March 15, 1973. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 4, 1974" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of W. Pat Jennings. August 1, 1975. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 2, 1976" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of Edmund L. Henshaw, Jr. April 15, 1977. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 7, 1978" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Benjamin J. Guthrie, under direction of Edmund L. Henshaw, Jr. April 1, 1979. Archived (PDF) from the original on January 5, 2007. Retrieved January 24, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 4, 1980" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Thomas E. Ladd, under direction of Edmund L. Henshaw, Jr. April 15, 1981. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 2, 1982" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Thomas E. Ladd, under direction of Benjamin J. Guthrie. May 5, 1983. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 6, 1984" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Thomas E. Ladd., under direction of Benjamin J. Guthrie. May 1, 1985. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 4, 1986" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Dallas L. Dendy, Jr., under direction of Donnald K. Anderson. May 29, 1987. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 8, 1988" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Dallas L. Dendy, Jr., under direction of Donnald K. Anderson. April 20, 1989. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 6, 1990" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Dallas L. Dendy, Jr., under direction of Donnald K. Anderson. April 29, 1991. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 3, 1992" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Dallas L. Dendy, Jr., under direction of Donnald K. Anderson. May 31, 1993. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 8, 1994" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Robin H. Carle. May 12, 1995. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 5, 1996" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Robin H. Carle. July 29, 1997. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 3, 1998" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Jeff Trandahl. January 3, 1999. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional and Presidential Election of November 7, 2002" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Jeff Trandahl. June 21, 2001. Archived (PDF) from the original on January 5, 2007. Retrieved January 23, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 5, 2002" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Jeff Trandahl. May 1, 2003. Archived (PDF) from the original on January 5, 2007. Retrieved January 22, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 2, 2004" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Jeff Trandahl. June 7, 2005. Archived (PDF) from the original on January 5, 2007. Retrieved January 22, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 7, 2006" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Lorraine C. Miller. September 21, 2007. Archived (PDF) from the original on August 15, 2007. Retrieved January 22, 2001.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 4, 2008" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Lorraine C. Miller. July 10, 2009. Archived (PDF) from the original on July 30, 2009. Retrieved January 22, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Congressional Election of November 2, 2010" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Karen L. Haas. June 3, 2011. Archived (PDF) from the original on August 7, 2011. Retrieved January 22, 2021.{{cite web}}: CS1 maint: others (link)
^"Statistics of the Presidential and Congressional Election of November 6, 2012" (PDF). Office of the Clerk, U.S. House of Representatives. Compiled from official sources by Karen L. Haas. February 28, 2013. Archived (PDF) from the original on May 9, 2013. Retrieved January 22, 2021.{{cite web}}: CS1 maint: others (link)
^"Official Results November 4, 2014 General Election". Colorado Election Results. Colorado Secretary of State. Archived from the original on December 26, 2014. Retrieved January 22, 2021.
^"Official Certified Results November 8, 2016 General Election". Colorado Election Results. Colorado Secretary of State. Archived from the original on December 15, 2016. Retrieved January 22, 2021.
^"2018 General Certification and Results" (PDF). Colorado Secretary of State. Archived (PDF) from the original on October 18, 2020. Retrieved January 22, 2021.
^"Certificate - General Election Statewide Abstract of Votes Cast" (PDF). Colorado Secretary of State. Archived (PDF) from the original on December 14, 2020. Retrieved January 22, 2021.
^"Certificate & Results - General Election Statewide Abstract of Votes Cast" (PDF). Colorado Secretary of State.
Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
Congressional Biographical Directory of the United States 1774–present