Voter file loaded June 9, 2026 · figures are from that file, held as a fixed record
Whatcom County, Washington has 169,106 active registered voters across 175 precincts, as of July 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 Whatcom County voted for president
Election results are public records.
Whatcom County at a glance.
Whatcom County had an estimated 234,954 residents in July 2024, the ninth most populous of Washington's 39 counties, up 3.6% since the 2020 census. Of those, 193,264 are 18 or older, the voting-age population, and 19.6% are 65 or older. Its 169,106 active registered voters equal about 87.5% of that voting-age population.
It covers 2,108 square miles of land (112 people per square mile), and 39.5% of residents live outside any incorporated city or town. The largest cities and towns are Bellingham (95,860), Lynden (16,783), Ferndale (16,706), Blaine (6,371) and Everson (3,169). The American Community Survey (2020-2024) puts it at a median age of 38.4, a median household income of $81,784, 39.3% of adults 25 and older holding a bachelor's degree or higher and 63.7% of occupied homes owned by the people living in them.
In 2024, 137,006 votes were cast for president, about 70.9% of the voting-age population; the Democratic ticket took 60.8% and the Republican ticket 35.9%. The two-party margin moved from D+17.9 in 2008 to D+24.9 in 2024.
- Population (2024 estimate)
- 234,954
- Population (2020 census base)
- 226,844
- Voting-age population (18+)
- 193,264
- Active voters per 100 adults
- 87.5
- Residents 65 and older
- 19.6%
- People per square mile
- 112
- Living outside incorporated places
- 39.5%
- Land area
- 2,108 sq mi
- Median age
- 38.4
- Median household income
- $81,784
- Adults 25+ with a bachelor's degree
- 39.3%
- Owner-occupied homes
- 63.7%
Largest cities and towns
- Bellingham 95,860
- Lynden 16,783
- Ferndale 16,706
- Blaine 6,371
- Everson 3,169
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 60.8% | 35.9% | D+24.9 | 137,006 |
| 2020 | 60.4% | 36.4% | D+24.0 | 138,620 |
| 2016 | 54.9% | 37.2% | D+17.7 | 108,223 |
| 2012 | 54.6% | 42.5% | D+12.1 | 91,158 |
| 2008 | 58.0% | 40.1% | D+17.9 | 100,339 |
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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