- Lead
- 1,983
- Total
- 7,021
- vs nation
- R+26.8
- Turnout
- 56.7%
Colusa County, CA
President margin by year
Place winner margin
President results by year
2024 turnout 56.7% of 12,676 citizens 18+
- Lead
- 1,320
- Total
- 7,961
- vs nation
- R+21.0
- Turnout
- 63.6%
- Lead
- 890
- Total
- 6,697
- vs nation
- R+15.4
- Turnout
- 56.0%
- Lead
- 1,287
- Total
- 6,045
- vs nation
- R+25.1
- Turnout
- —
- Lead
- 1,164
- Total
- 6,448
- vs nation
- R+25.3
- Turnout
- —
- Lead
- 2,195
- Total
- 6,166
- vs nation
- R+33.1
- Turnout
- —
- Lead
- 1,884
- Total
- 5,590
- vs nation
- R+34.2
- Turnout
- —
- Lead
- 993
- Total
- 5,612
- vs nation
- R+26.2
- Turnout
- —
Key facts
- 2024 presidential margin
- R+28.2MIT Election Lab
- Population
- 21,9842024 5-year
- Median household income
- $75,6722024 5-year
- White (non-Hispanic)
- 29.8%2024 5-year
- Black
- 1.5%2024 5-year
- Hispanic / Latino
- 62.9%2024 5-year
- Peak Democratic margin
- D+63.6 in 1912MIT Election Lab
- Peak Republican margin
- R+35.6 in 2004MIT Election Lab
- Most similar
- Madera County, CA · twin score 95.4
Midterm durability
Total general-election participants divided by same-year citizen voting-age population. These are total ballots or participating voters—not presidential candidate votes.
- 2024 total turnout
- 56.7%7,193 participants ÷ 12,676 CVAP
- 2020→2022 drop-off
- +19.0 ptsVolatile
- Drop-off versus state
- -7.0 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026 scenario
- 37.7%–42.7%Recent-cycle and two-cycle persistence scenarios; not a forecast
| Election | Participants | CVAP | Turnout | Quality |
|---|---|---|---|---|
| 2016 · Presidential | 6,851 | 12,229 | 56.0% | A/A |
| 2018 · Midterm | 5,815 | 12,368 | 47.0% | A/A |
| 2020 · Presidential | 8,050 | 12,658 | 63.6% | A/A |
| 2022 · Midterm | 5,617 | 12,604 | 44.6% | A/A |
| 2024 · Presidential | 7,193 | 12,676 | 56.7% | A/A |
Sources and methods
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2022: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 306/183.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
Precinct data
Results by precinct
19 precincts · 7,021 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -106106 | 408 | 621 | 18 | 1,047 | 39.0% | 59.3% | R+20.3 |
|---|---|---|---|---|---|---|---|
| Precinct -214214 | 208 | 466 | 22 | 696 | 29.9% | 67.0% | R+37.1 |
| Precinct -213213 | 247 | 414 | 24 | 685 | 36.1% | 60.4% | R+24.4 |
| Precinct -105105 | 232 | 409 | 15 | 656 | 35.4% | 62.3% | R+27.0 |
| Precinct -401401 | 124 | 455 | 7 | 586 | 21.2% | 77.6% | R+56.5 |
| Precinct -324324 | 259 | 262 | 15 | 536 | 48.3% | 48.9% | R+0.6 |
| Precinct -512512 | 198 | 242 | 9 | 449 | 44.1% | 53.9% | R+9.8 |
| Precinct -513513 | 131 | 269 | 12 | 412 | 31.8% | 65.3% | R+33.5 |
| Precinct -323323 | 161 | 176 | 10 | 347 | 46.4% | 50.7% | R+4.3 |
| Precinct -427427 | 158 | 114 | 11 | 283 | 55.8% | 40.3% | D+15.5 |
| Precinct -500500 | 50 | 215 | 11 | 276 | 18.1% | 77.9% | R+59.8 |
| Precinct -301301 | 44 | 183 | 5 | 232 | 19.0% | 78.9% | R+59.9 |
| Precinct -203203 | 66 | 141 | 5 | 212 | 31.1% | 66.5% | R+35.4 |
| Precinct -406406 | 48 | 96 | 5 | 149 | 32.2% | 64.4% | R+32.2 |
| Precinct -408408 | 32 | 94 | 3 | 129 | 24.8% | 72.9% | R+48.1 |
| Precinct -405405 | 13 | 88 | 2 | 103 | 12.6% | 85.4% | R+72.8 |
| Precinct -202202 | 18 | 83 | 0 | 101 | 17.8% | 82.2% | R+64.4 |
| Precinct -407407 | 16 | 44 | 1 | 61 | 26.2% | 72.1% | R+45.9 |
| Precinct -505505 | 18 | 42 | 1 | 61 | 29.5% | 68.9% | R+39.3 |
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | +31.4% |
| 1880 | +29.1% |
| 1884 | +26.7% |
| 1888 | +28.1% |
| 1892 | +26.1% |
| 1896 | +35.5% |
| 1900 | +23.7% |
| 1904 | +0.8% |
| 1908 | +17.7% |
| 1912 | +63.6% |
| 1916 | +31.1% |
| 1920 | −27.5% |
| 1924 | −24.6% |
| 1928 | −13.3% |
| 1932 | +41.6% |
| 1936 | +42.2% |
| 1940 | +19.7% |
| 1944 | +13.9% |
| 1948 | +5.6% |
| 1952 | −19.1% |
| 1956 | −6.5% |
| 1960 | −3.1% |
| 1964 | +21.3% |
| 1968 | −11.0% |
| 1972 | −19.2% |
| 1976 | −7.6% |
| 1980 | −25.9% |
| 1984 | −32.1% |
| 1988 | −20.4% |
| 1992 | −14.0% |
| 1996 | −17.7% |
| 2000 | −33.7% |
| 2004 | −35.6% |
| 2008 | −18.1% |
| 2012 | −21.3% |
| 2016 | −13.3% |
| 2020 | −16.6% |
| 2024 | −28.2% |
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
U.S. Senate
Each row shows U.S. Senate votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
U.S. Senate special elections
Each row shows U.S. Senate special votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Governor
Each row shows Governor votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 19 points more Democratic.
10,515 registered voters · 2024 · up from 10,139 in 2022
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−187 net domestic migration · 2025
Net −1,623 over 2011–2025 · gain loss
Arrivals reported $47,215 in average income, against $73,575 for residents who stayed — 36% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+7.2 on average — 35 points more Democratic-leaning than Colusa County, CA itself (R+28.2).
Where arrivals came from lean of each source
- Yolo County, CA56D+36.2
- Sacramento County, CA39D+19.7
- Sutter County, CA25R+31.4
- Butte County, CA22R+3.1
- Glenn County, CA22R+34.9
Where departures went households, 2022–23
- Yolo County, CA50
- Sacramento County, CA45
- Sutter County, CA38
- Glenn County, CA33
- Butte County, CA32
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −250 |
| 2012 | −167 |
| 2013 | −210 |
| 2014 | −239 |
| 2015 | −69 |
| 2016 | +115 |
| 2017 | −40 |
| 2018 | −237 |
| 2019 | +10 |
| 2021 | −32 |
| 2022 | −138 |
| 2023 | −10 |
| 2024 | −169 |
| 2025 | −187 |
Colusa's economy revolves around rice, almonds, and cattle ranching, and its rural agricultural identity consistently produces some of the widest Republican presidential margins among California's Central Valley counties.
Across the recorded series it reached a Democratic high of 63.6 points in 1912 and a Republican high of 35.6 points in 2004. Between 2020 and 2024 the county moved 11.7 points toward the Republican candidate; the 2024 margin was 28.2 points.
A population of 21,984, a 30% non-Hispanic-white share, and a median household income of $75,672 describe the county. The county's voting pattern over the last decade is most similar to that of Madera County and Glenn County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Colusa County, California. Akashic. https://akashic.app/county/06011/. Accessed May 20, 2026. License: CC BY 4.0.