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2026 midtermsResults

2026 results · Colorado · Colorado Senate

John Hickenlooper, the Democrat, wins re-election to the Senate in Colorado

Kamala Harris carried Colorado by 11.0 points in 2024; this year's count is a 14.4-point move toward the Democrats.

Colorado Senate: votes counted for each candidate
CandidateVotesShareShare of the vote
John HickenlooperDemocrat, incumbent1,606,85860.4%
Mark BaisleyRepublican932,09635.1%
Bob ChewOther party69,9992.6%
Blake HuberOther party32,4511.2%
Adam WithrowOther party13,3740.5%
Christopher BaumOther party4,1720.2%

Called by Call the Map, Nov 4, 8:01 AM EST · 97% counted.

About 97% of the expected vote counted2,658,950 votesCount last changed Nov 7, 11:28 AM EST · checked Nov 7, 6:28 PM ESTSource: Colorado Secretary of State

The map

Loading the map.

What moved most

Scroll through Colorado, part by part. The parts follow the federal government’s metropolitan areas: each big metro’s core counties, its suburbs and outer suburbs, the smaller metro areas, then the small towns and countryside.

What the count shows

Added together, the 64 counties compared moved 14.4 points toward the Democrats from the 2024 presidential vote.

The counties compared cast 83% as many votes as in 2024, from 89% in Chaffee County to 75% in Bent County. Where turnout ran higher, the county moved more toward the Republicans (r = −0.28).

Adams County moved most: D+9.0 for president in 2024, D+31.9 this year

The 10 counties with the largest moves from the 2024 presidential vote, among those with 2,000 or more votes for president in 2024 and a quarter of that counted, and at least half a percent of the state's 2024 vote. Each line runs from the 2024 margin to this year’s.

CountyR+80EvenD+80Move
Adams County195,886 votes22.9 pts → D
Weld County148,041 votes18.0 pts → D
Arapahoe County259,598 votes16.2 pts → D
Pueblo County68,092 votes16.0 pts → D
Garfield County25,047 votes15.2 pts → D
Denver County305,655 votes14.3 pts → D
Summit County14,574 votes13.6 pts → D
El Paso County313,166 votes13.6 pts → D
Eagle County23,161 votes13.5 pts → D
Mesa County75,999 votes13.1 pts → D

2024 president 2026

El Paso County added 49,182 net votes for Hickenlooper against the 2024 margin, 15% of the statewide change

Across the 64 counties compared, the margin moved by 324,044 votes toward Hickenlooper: this year’s lead in votes against the 2024 presidential lead in votes, county by county. The figure counts voters who changed sides and differences in who turned out alike; the count cannot tell them apart.

  1. El Paso County+49,182 Hickenlooper
  2. Adams County+41,525 Hickenlooper
  3. Weld County+33,278 Hickenlooper
  4. Jefferson County+29,499 Hickenlooper
  5. Arapahoe County+28,913 Hickenlooper
  6. Douglas County+25,510 Hickenlooper
  7. Larimer County+19,260 Hickenlooper
  8. Mesa County+13,742 Hickenlooper

8 counties Donald Trump carried in 2024 are led by Hickenlooper this year

Striped on the map above. Largest first.

  • El Paso CountyR+9.8D+3.8
  • Douglas CountyR+7.0D+4.1
  • Pueblo CountyR+5.1D+10.9
  • Grand CountyR+0.8D+9.4
  • Archuleta CountyR+14.0D+0.6
  • Las Animas CountyR+13.5D+1.0
  • Alamosa CountyR+10.8D+9.1
  • Huerfano CountyR+8.6D+5.1

What the places that moved have in common

Each of Colorado’s counties, set against the Census Bureau’s figures for who lives there. A pattern across counties, not an exit poll: it does not say how any group of people voted.

Urban, suburban and rural counties

Urban2 counties, 13% of the vote14.0 pts → D
Suburban7 counties, 62% of the vote14.2 pts → D
Rural55 counties, 25% of the vote14.2 pts → D

2024 president 2026 · Urban: 1,000 or more residents per square mile; suburban: 100 to 999; rural: under 100 (our grouping).

Census Bureau ACS 2019–2023 and 2023 Gazetteer; a county joins once its count is substantially in.

The seat that changed party

U.S. HouseBefore the election 4–4, now D 7–1, counting the leaders in 3 uncalled seats

  1. D+64.2Kiros
  2. D+51.0Neguse
  3. R+1.9Hurd
  4. D+0.8Laubacher
  5. D+4.7Killin
  6. D+34.5Crow
  7. D+24.6Pettersen
  8. D+14.7Rutinel

won leads, still counting changed party. Margins are the leader’s share minus the runner-up’s, in points.

Every count on this page is the official count published by the Colorado Secretary of State. Counts are unofficial until the state certifies them. The 2024 comparison is the presidential vote, Kamala Harris against Donald Trump, on the same ground. Margins are the Democrat minus the Republican, in points of all votes. Photos: John Hickenlooper, by Renee Bouchard, United States Senate Photographic Studio, public domain, via Wikimedia Commons, cropped, background removed; Mark Baisley, by Colorado Senate GOP, public domain, via Wikimedia Commons, cropped, background removed.