Voter file loaded June 9, 2026 · figures are from that file, held as a fixed record
Lewis County, Washington has 59,513 active registered voters across 97 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 Lewis County voted for president
Election results are public records.
Lewis County at a glance.
Lewis County had an estimated 87,049 residents in July 2024, the 15th most populous of Washington's 39 counties, up 6.0% since the 2020 census. Of those, 68,273 are 18 or older, the voting-age population, and 22.0% are 65 or older. Its 59,513 active registered voters equal about 87.2% of that voting-age population.
It covers 2,403 square miles of land (36 people per square mile), and 59.3% of residents live outside any incorporated city or town. The largest cities and towns are Centralia (19,061), Chehalis (7,717), Winlock (2,515), Napavine (2,155) and Morton (1,089). The American Community Survey (2020-2024) puts it at a median age of 42.2, a median household income of $74,796, 21.5% of adults 25 and older holding a bachelor's degree or higher and 75.8% of occupied homes owned by the people living in them.
In 2024, 45,112 votes were cast for president, about 66.1% of the voting-age population; the Democratic ticket took 32.0% and the Republican ticket 65.0%. The two-party margin moved from R+19.1 in 2008 to R+33.0 in 2024.
- Population (2024 estimate)
- 87,049
- Population (2020 census base)
- 82,151
- Voting-age population (18+)
- 68,273
- Active voters per 100 adults
- 87.2
- Residents 65 and older
- 22.0%
- People per square mile
- 36
- Living outside incorporated places
- 59.3%
- Land area
- 2,403 sq mi
- Median age
- 42.2
- Median household income
- $74,796
- Adults 25+ with a bachelor's degree
- 21.5%
- Owner-occupied homes
- 75.8%
Largest cities and towns
- Centralia 19,061
- Chehalis 7,717
- Winlock 2,515
- Napavine 2,155
- Morton 1,089
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 32.0% | 65.0% | R+33.0 | 45,112 |
| 2020 | 32.0% | 64.9% | R+32.9 | 45,309 |
| 2016 | 28.9% | 65.1% | R+36.2 | 24,995 |
| 2012 | 37.1% | 60.6% | R+23.5 | 26,348 |
| 2008 | 39.3% | 58.4% | R+19.1 | 34,705 |
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.
Running in Lewis County?
The voter file is loaded. Create your campaign and start canvassing in minutes.
Start free in Lewis CountyAlso see: Motion51 in Washington · How to run for office in Lewis County · Pricing