Voter file loaded June 5, 2026 · figures are from that file, held as a fixed record
Clark County, Washington has 358,529 active registered voters across 369 precincts, as of November 2026.
Party registration
Washington doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.
How Clark County voted for president
Election results are public records.
Clark County at a glance.
Clark County had an estimated 527,269 residents in July 2024, the fifth most populous of Washington's 39 counties, up 4.8% since the 2020 census. Of those, 412,053 are 18 or older, the voting-age population, and 17.5% are 65 or older. Its 358,529 active registered voters equal about 87.0% of that voting-age population.
It covers 628 square miles of land (839 people per square mile), and 45.3% of residents live outside any incorporated city or town. The largest cities and towns are Vancouver (198,992), Camas (27,313), Battle Ground (22,959), Washougal (17,944) and Ridgefield (15,359). The American Community Survey (2020-2024) puts it at a median age of 39.1, a median household income of $97,536, 33.3% of adults 25 and older holding a bachelor's degree or higher and 66.4% of occupied homes owned by the people living in them.
In 2024, 274,795 votes were cast for president, about 66.7% of the voting-age population; the Democratic ticket took 52.1% and the Republican ticket 45.1%. The two-party margin moved from D+6.1 in 2008 to D+7.0 in 2024.
- Population (2024 estimate)
- 527,269
- Population (2020 census base)
- 503,308
- Voting-age population (18+)
- 412,053
- Active voters per 100 adults
- 87.0
- Residents 65 and older
- 17.5%
- People per square mile
- 839
- Living outside incorporated places
- 45.3%
- Land area
- 628 sq mi
- Median age
- 39.1
- Median household income
- $97,536
- Adults 25+ with a bachelor's degree
- 33.3%
- Owner-occupied homes
- 66.4%
Largest cities and towns
- Vancouver 198,992
- Camas 27,313
- Battle Ground 22,959
- Washougal 17,944
- Ridgefield 15,359
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 52.1% | 45.1% | D+7.0 | 274,795 |
| 2020 | 51.0% | 45.9% | D+5.1 | 275,403 |
| 2016 | 46.3% | 46.3% | even | 195,784 |
| 2012 | 48.9% | 48.8% | D+0.1 | 181,567 |
| 2008 | 52.2% | 46.1% | D+6.1 | 182,764 |
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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