Colorado
Government
Jared Polis
Governor, Democratic Party, since 8 Jan 2019
Senate35 seats
Democratic 23, Republican 12
House of Representatives65 seats
Democratic 46, Republican 19
Trifecta: the Democratic Party holds the governorship and both chambers.
Races this cycle
2026 forecastNo governor or Senate race in Colorado this cycle.
Early vote
Ballots cast or requested before election day in Colorado, by voters’ registered party. As of 5 Nov 2026.
Mail ballots requested
4,075,072
- Democratic Party1,011,92225%
- Republican Party889,75122%
- Other2,173,39953%
Mail ballots returned
2,606,233
- Democratic Party747,91029%
- Republican Party623,07524%
- Other1,235,24847%
Voted early in person
138,122
- Democratic Party36,01726%
- Republican Party27,39120%
- Other74,71454%
Mail ballots returned, day by day
Counties with the most mail ballots returned
| County | Ballots | Democratic | Republican | Other |
|---|---|---|---|---|
| El Paso | 306,514 | 20% | 32% | 48% |
| Jefferson | 301,409 | 30% | 21% | 49% |
| Denver | 291,468 | 46% | 8% | 46% |
| Arapahoe | 260,914 | 32% | 20% | 47% |
| Douglas | 202,552 | 19% | 32% | 49% |
| Adams | 193,341 | 32% | 20% | 48% |
| Larimer | 187,014 | 28% | 22% | 50% |
| Boulder | 168,658 | 43% | 9% | 48% |
| Weld | 144,238 | 20% | 33% | 46% |
| Mesa | 74,121 | 15% | 38% | 47% |
Latest Colorado polls
All US polls| Institute | Date | Fieldwork | Sample | MoE | Method | Voting intention | Source |
|---|---|---|---|---|---|---|---|
| Keating Research | 3 Nov 2026 | 1 Nov 2026 – 2 Nov 2026 | 400 | ±4.9 | — |
| Source for Keating Research poll (opens in a new tab) |
| Keating Research | 3 Nov 2026 | 1 Nov 2026 – 2 Nov 2026 | 400 | ±4.9 | — |
| Source for Keating Research poll (opens in a new tab) |
| Research Co. | 2 Nov 2026 | 31 Oct 2026 – 2 Nov 2026 | 450 | ±4.6 | — |
| Source for Research Co. poll (opens in a new tab) |
| CU Boulder/YouGov | 29 Oct 2026 | 9 Oct 2026 – 20 Oct 2026 | 710 | ±4.5 | — |
| Source for CU Boulder/YouGov poll (opens in a new tab) |
| Research Co. | 2 Nov 2026 | 31 Oct 2026 – 2 Nov 2026 | 450 | ±4.6 | — |
| Source for Research Co. poll (opens in a new tab) |
| CU Boulder/YouGov | 29 Oct 2026 | 9 Oct 2026 – 20 Oct 2026 | 710 | ±4.5 | — |
| Source for CU Boulder/YouGov poll (opens in a new tab) |
| Lake Research Partners (D) | 30 Sept 2026* | 16 Sept 2026 – 30 Sept 2026 | 600 | ±4.0 est. (Not published: estimated from sample size (95%, simple random sample)) | — |
| Source for Lake Research Partners (D) poll (opens in a new tab) |
| Lake Research Partners (D) | 30 Sept 2026* | 16 Sept 2026 – 30 Sept 2026 | 600 | ±4.0 est. (Not published: estimated from sample size (95%, simple random sample)) | — |
| Source for Lake Research Partners (D) poll (opens in a new tab) |
| Tavern Research (D) | 27 Jun 2026 | 31 May 2026 – 1 Jun 2026 | — | — | — |
| Source for Tavern Research (D) poll (opens in a new tab) |
| Public Policy Polling (D) | 25 Jun 2026 | 24 Jun 2026 – 25 Jun 2026 | 600 | ±4.0 est. (Not published: estimated from sample size (95%, simple random sample)) | — |
| Source for Public Policy Polling (D) poll (opens in a new tab) |
- Keating Research
3 Nov 2026 · n=400 · MoE ±4.9 · Method n/a
- Hickenlooper (D)58.0%
- Baisley (R)37.0%
- Keating Research
3 Nov 2026 · n=400 · MoE ±4.9 · Method n/a
- Weiser (D)59.0%
- Marx (R)33.0%
- Research Co.
2 Nov 2026 · n=450 · MoE ±4.6 · Method n/a
- Hickenlooper (D)57.0%
- Baisley (R)35.0%
- CU Boulder/YouGov
29 Oct 2026 · n=710 · MoE ±4.5 · Method n/a
- Hickenlooper (D)57.0%
- Baisley (R)39.0%
- Research Co.
2 Nov 2026 · n=450 · MoE ±4.6 · Method n/a
- Weiser (D)53.0%
- Marx (R)38.0%
- CU Boulder/YouGov
29 Oct 2026 · n=710 · MoE ±4.5 · Method n/a
- Weiser (D)57.0%
- Marx (R)37.0%
- Lake Research Partners (D)
30 Sept 2026* · n=600 · MoE ±4.0 est. (Not published: estimated from sample size (95%, simple random sample)) · Method n/a
- Hickenlooper (D)52.0%
- Baisley (R)38.0%
- Lake Research Partners (D)
30 Sept 2026* · n=600 · MoE ±4.0 est. (Not published: estimated from sample size (95%, simple random sample)) · Method n/a
- Weiser (D)51.0%
- Marx (R)36.0%
- Tavern Research (D)
27 Jun 2026 · n=— · MoE — · Method n/a
- Bennet (D)35.0%
- Weiser (D)28.0%
- Public Policy Polling (D)
25 Jun 2026 · n=600 · MoE ±4.0 est. (Not published: estimated from sample size (95%, simple random sample)) · Method n/a
- Weiser (D)45.0%
- Bennet (D)36.0%
* End of fieldwork: the source states no publication date.
Last governor election
2026 Colorado gubernatorial election ·
How people voted last time.
| Party | Vote |
|---|
Source: Wikipedia
2026 Colorado gubernatorial election by county
| County | Leader | Lead | Votes |
|---|---|---|---|
| El Paso | Weiser | +5.3 | 311,895 |
| Jefferson | Weiser | +35.9 | 306,523 |
| Denver | Weiser | +72.8 | 293,368 |
| Arapahoe | Weiser | +40.3 | 236,686 |
| Douglas | Weiser | +8.6 | 204,267 |
| Adams | Weiser | +33.3 | 195,236 |
| Larimer | Weiser | +33.0 | 192,176 |
| Boulder | Weiser | +67.3 | 160,695 |
| Weld | Marx | +0.4 | 146,839 |
| Mesa | Marx | +10.2 | 75,803 |
Last Senate election
2026 United States Senate election in Colorado ·
How people voted last time.
| Party | Vote | |
|---|---|---|
| John Hickenlooper (D) | 59.8% | |
| Mark Baisley (R) | 35.9% | |
| Bob Chew (I) | 2.6% | |
| Blake Huber (L) | 1.1% | |
| Adam Withrow (I) | 0.5% | |
| Christopher Baum (I) | 0.2% |
Source: Wikipedia
2026 United States Senate election in Colorado by county
| County | Leader | Lead | Votes |
|---|---|---|---|
| El Paso | Hickenlooper | +3.8 | 313,166 |
| Jefferson | Hickenlooper | +32.4 | 308,515 |
| Denver | Hickenlooper | +70.6 | 292,921 |
| Arapahoe | Hickenlooper | +36.4 | 238,547 |
| Douglas | Hickenlooper | +4.1 | 206,030 |
| Adams | Hickenlooper | +31.9 | 195,886 |
| Larimer | Hickenlooper | +30.4 | 192,821 |
| Boulder | Hickenlooper | +64.7 | 160,957 |
| Weld | Baisley | +3.0 | 148,041 |
| Mesa | Baisley | +11.2 | 75,999 |
Last presidential election
2024 United States presidential election in Colorado ·
How people voted last time.
| Party | Vote | |
|---|---|---|
| Kamala Harris (D) | 54.1% | |
| Donald Trump (R) | 43.1% | |
| Robert F. Kennedy Jr. (I) | 1.1% | |
| Chase Oliver (L) | 0.7% | |
| Jill Stein (G) | 0.5% | |
| Cornel West (I) | 0.2% | |
| Randall Terry (I) | 0.1% | |
| Blake Huber (I) | 0.1% | |
| Peter Sonski (I) | 0.0% | |
| Claudia De la Cruz (I) | 0.0% | |
| Others (2) | 0.0% |
Source: Wikipedia