Colorado Congressional District 01

Congressional District Profile

Overview

District ID
CO-01
State
Colorado
District Number
01
Total Candidates
107
Election Cycles
2026, 2024, 2022, 2020, 2018, 2016, 2014, 2012, 2010, 2008, 2006, 2004, 2002, 2000, 1998, 1996, 1994, 1992, 1990, 1988, 1986, 1984, 1982, 1980

View office details for U.S. Representative - Colorado District 01

Voters

Registered Voters
544,659
Active Voters
462,055 (84.8%)

Party Registration

PartyVotersShare
Democratic209,68138.5%
Republican48,0418.8%
Unaffiliated272,44650.0%
Other parties14,4912.7%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–2026192,210 (35.3%)0 (0.0%)0 (0.0%)
2023–2024365,869 (67.2%)78,617 (14.4%)17,987 (3.3%)
2021–2022274,751 (50.4%)64,583 (11.9%)12,685 (2.3%)
2019–2020325,104 (59.7%)121,662 (22.3%)19,594 (3.6%)
2017–2018236,786 (43.5%)69,326 (12.7%)13,016 (2.4%)
2015–2016236,157 (43.4%)41,310 (7.6%)10,167 (1.9%)
2013–2014159,740 (29.3%)27,156 (5.0%)10,714 (2.0%)
2011–2012186,784 (34.3%)20,394 (3.7%)6,664 (1.2%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 01/20/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Citizen Population
667,950
Citizen Voting Age Population (CVAP)
542,544

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic504,53275.5%
Hispanic163,42224.5%
White395,57559.2%
Black59,5248.9%
Asian20,0773.0%
American Indian / Alaska Native2,2290.3%
Native Hawaiian / Pacific Islander8450.1%
Two or More Races3,7450.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic432,90679.8%
Hispanic109,63820.2%
White349,38364.4%
Black51,8619.6%
Asian22,4634.1%
American Indian / Alaska Native6,5881.2%
Native Hawaiian / Pacific Islander7860.1%
Two or More Races2,7520.5%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation.

Candidates