Voter file loaded June 9, 2026 · figures are from that file, held as a fixed record
Pierce County, Washington has 592,961 active registered voters across 724 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 Pierce County voted for president
Election results are public records.
Pierce County at a glance.
Pierce County had an estimated 941,170 residents in July 2024, the second most populous of Washington's 39 counties, up 2.2% since the 2020 census. Of those, 728,961 are 18 or older, the voting-age population, and 15.5% are 65 or older. Its 592,961 active registered voters equal about 81.3% of that voting-age population.
It covers 1,668 square miles of land (564 people per square mile), and 46.9% of residents live outside any incorporated city or town. The largest cities and towns are Tacoma (228,202), Lakewood (62,709), Puyallup (42,552), University Place (35,160) and Bonney Lake (22,145). The American Community Survey (2020-2024) puts it at a median age of 37.0, a median household income of $99,564, 30.9% of adults 25 and older holding a bachelor's degree or higher and 64.7% of occupied homes owned by the people living in them.
In 2024, 436,685 votes were cast for president, about 59.9% of the voting-age population; the Democratic ticket took 53.9% and the Republican ticket 43.1%. The two-party margin moved from D+12.2 in 2008 to D+10.8 in 2024.
- Population (2024 estimate)
- 941,170
- Population (2020 census base)
- 921,162
- Voting-age population (18+)
- 728,961
- Active voters per 100 adults
- 81.3
- Residents 65 and older
- 15.5%
- People per square mile
- 564
- Living outside incorporated places
- 46.9%
- Land area
- 1,668 sq mi
- Median age
- 37.0
- Median household income
- $99,564
- Adults 25+ with a bachelor's degree
- 30.9%
- Owner-occupied homes
- 64.7%
Largest cities and towns
- Tacoma 228,202
- Lakewood 62,709
- Puyallup 42,552
- University Place 35,160
- Bonney Lake 22,145
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 53.9% | 43.1% | D+10.8 | 436,685 |
| 2020 | 53.8% | 42.6% | D+11.2 | 464,081 |
| 2016 | 49.7% | 42.2% | D+7.5 | 322,592 |
| 2012 | 54.3% | 43.4% | D+10.9 | 332,134 |
| 2008 | 55.2% | 43.0% | D+12.2 | 329,520 |
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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