Data as of October 18, 2026 · refreshed automatically from the official California voter file
Butte County, CA has 127,187 active registered voters — 37.6% Republican, 33.3% Democratic, and 19.2% with no party affiliation, as of October 2026.
Party registration
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 40002 | 700 | 551 | 78.71% |
| 2 | 20006 | 573 | 433 | 75.57% |
| 3 | 50018 | 454 | 339 | 74.67% |
| 4 | 22026 | 918 | 675 | 73.53% |
| 5 | 52001 | 617 | 450 | 72.93% |
| 6 | 20004 | 1,432 | 1,041 | 72.7% |
| 7 | 52007 | 2,805 | 2,005 | 71.48% |
| 8 | 20005 | 1,083 | 769 | 71.01% |
| 9 | 40009 | 461 | 326 | 70.72% |
| 10 | 32003 | 1,463 | 1,028 | 70.27% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
How Butte County voted for president
Election results are public records.
Butte County at a glance.
Butte County had an estimated 208,334 residents in July 2024, the 28th most populous of California's 58 counties, down 1.6% since the 2020 census. Of those, 166,368 are 18 or older, the voting-age population, and 19.0% are 65 or older. Its 127,187 active registered voters equal about 76.4% of that voting-age population.
It covers 1,636 square miles of land (127 people per square mile), and 32.3% of residents live outside any incorporated city or town. The largest cities and towns are Chico (102,911), Oroville (19,712), Paradise (9,114), Gridley (7,355) and Biggs (1,941). The American Community Survey (2020-2024) puts it at a median age of 36.2, a median household income of $67,928, 31.9% of adults 25 and older holding a bachelor's degree or higher and 57.3% of occupied homes owned by the people living in them.
In 2024, 94,523 votes were cast for president, about 56.8% of the voting-age population; the Democratic ticket took 46.8% and the Republican ticket 49.9%. The two-party margin moved from D+2.3 in 2008 to R+3.1 in 2024.
- Population (2024 estimate)
- 208,334
- Population (2020 census base)
- 211,632
- Voting-age population (18+)
- 166,368
- Active voters per 100 adults
- 76.4
- Residents 65 and older
- 19.0%
- People per square mile
- 127
- Living outside incorporated places
- 32.3%
- Land area
- 1,636 sq mi
- Median age
- 36.2
- Median household income
- $67,928
- Adults 25+ with a bachelor's degree
- 31.9%
- Owner-occupied homes
- 57.3%
Largest cities and towns
- Chico 102,911
- Oroville 19,712
- Paradise 9,114
- Gridley 7,355
- Biggs 1,941
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 46.8% | 49.9% | R+3.1 | 94,523 |
| 2020 | 49.4% | 47.8% | D+1.6 | 102,042 |
| 2016 | 44.0% | 48.0% | R+4.0 | 87,847 |
| 2012 | 46.4% | 50.3% | R+3.9 | 70,163 |
| 2008 | 49.8% | 47.5% | D+2.3 | 98,325 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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