Data as of October 18, 2026 · refreshed automatically from the official California voter file
Alpine County, CA has 919 active registered voters — 23.7% Republican, 42.3% Democratic, and 23.5% with no party affiliation, as of October 2026.
Party registration
How Alpine County voted for president
Election results are public records.
Alpine County at a glance.
Alpine County had an estimated 1,099 residents in July 2024, the least populous of California's 58 counties, down 6.5% since the 2020 census. Of those, 928 are 18 or older, the voting-age population, and 29.2% are 65 or older. Its 919 active registered voters equal about 99.0% of that voting-age population.
It covers 738 square miles of land (1.5 people per square mile). The American Community Survey (2020-2024) puts it at a median age of 39.8, a median household income of $105,521, 41.1% of adults 25 and older holding a bachelor's degree or higher and 78.2% of occupied homes owned by the people living in them. In 2024, 738 votes were cast for president, about 79.5% of the voting-age population; the Democratic ticket took 64.9% and the Republican ticket 32.9%.
The two-party margin moved from D+24.6 in 2008 to D+32.0 in 2024.
- Population (2024 estimate)
- 1,099
- Population (2020 census base)
- 1,176
- Voting-age population (18+)
- 928
- Active voters per 100 adults
- 99.0
- Residents 65 and older
- 29.2%
- People per square mile
- 1.5
- Land area
- 738 sq mi
- Median age
- 39.8
- Median household income
- $105,521
- Adults 25+ with a bachelor's degree
- 41.1%
- Owner-occupied homes
- 78.2%
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 64.9% | 32.9% | D+32.0 | 738 |
| 2020 | 64.2% | 32.9% | D+31.3 | 741 |
| 2016 | 55.3% | 36.7% | D+18.6 | 575 |
| 2012 | 60.1% | 36.5% | D+23.6 | 647 |
| 2008 | 61.0% | 36.4% | D+24.6 | 692 |
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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