Data as of October 18, 2026 · refreshed automatically from the official California voter file
Trinity County, CA has 7,606 active registered voters — 38.7% Republican, 28.6% Democratic, and 21.3% with no party affiliation, as of October 2026.
Party registration
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | 440100.00 | 464 | 276 | 59.48% |
| 2 | 221101.00 | 1,576 | 887 | 56.28% |
| 3 | 112101.00 | 753 | 419 | 55.64% |
| 4 | 331101.00 | 1,181 | 601 | 50.89% |
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 Trinity County voted for president
Election results are public records.
Trinity County at a glance.
Trinity County had an estimated 15,642 residents in July 2024, the 54th most populous of California's 58 counties, down 2.9% since the 2020 census. Of those, 12,958 are 18 or older, the voting-age population, and 33.1% are 65 or older. Its 7,606 active registered voters equal about 58.7% of that voting-age population.
It covers 3,179 square miles of land (4.9 people per square mile). The American Community Survey (2020-2024) puts it at a median age of 54.9, a median household income of $53,002, 22.4% of adults 25 and older holding a bachelor's degree or higher and 71.7% of occupied homes owned by the people living in them. In 2024, 5,645 votes were cast for president, about 43.6% of the voting-age population; the Democratic ticket took 43.4% and the Republican ticket 52.8%.
The two-party margin moved from D+4.6 in 2008 to R+9.4 in 2024.
- Population (2024 estimate)
- 15,642
- Population (2020 census base)
- 16,116
- Voting-age population (18+)
- 12,958
- Active voters per 100 adults
- 58.7
- Residents 65 and older
- 33.1%
- People per square mile
- 4.9
- Land area
- 3,179 sq mi
- Median age
- 54.9
- Median household income
- $53,002
- Adults 25+ with a bachelor's degree
- 22.4%
- Owner-occupied homes
- 71.7%
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 43.4% | 52.8% | R+9.4 | 5,645 |
| 2020 | 45.6% | 50.9% | R+5.3 | 6,258 |
| 2016 | 39.8% | 51.1% | R+11.3 | 4,716 |
| 2012 | 47.1% | 48.2% | R+1.1 | 5,030 |
| 2008 | 50.7% | 46.1% | D+4.6 | 6,374 |
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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