Whitman County, Washington
County seat: Colfax · Population 48,512 (2025) · 2,159 sq mi
Whitman County is the 24th most populous of Washington's 39 counties, with 48,512 people (2025 estimate). Its county seat is Colfax. The map shows its 16 cities and towns and the 10 neighboring counties.
Whitman County facts
- County seat
- Colfax
- Population (2025 estimate)
- 48,512 +1.1% since 2020
- Land area
- 2,159 sq mi 10th largest of 39
- Water area
- 19 sq mi
- Population density
- 23 per sq mi
- Established
- 1871
- Named after
- Marcus Whitman American physician and Oregon missionary (1802-1847)
- Largest city
- Pullman 33,756
- Median household income
- $55,406
- Cities and towns
- 16 plus 1 CDPs
- ZIP codes
- 22
- Time zone
- Pacific
- FIPS code
- 53075
Cities and towns in Whitman County
Whitman County has 16 incorporated cities, towns and villages. Populations count the people living inside Whitman County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Pullman | City | 33,756 | |
| Colfax (county seat) | City | 2,667 | |
| Palouse | City | 1,019 | |
| Tekoa | City | 812 | |
| St. John | Town | 586 | |
| Rosalia | Town | 573 | |
| Garfield | Town | 542 | |
| Albion | Town | 540 | |
| Colton | Town | 402 | |
| Uniontown | Town | 398 | |
| Oakesdale | Town | 392 | |
| Endicott | Town | 298 | |
| LaCrosse | Town | 287 | |
| Malden | Town | 252 | |
| Farmington | Town | 133 | |
| Lamont | Town | 78 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Steptoe | 162 |
ZIP codes in Whitman County
22 ZIP codes reach into Whitman County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 99004 also Spokane County
- 99017
- 99033 also Spokane County
- 99102
- 99111
- 99113
- 99125
- 99128
- 99130
- 99136
- 99143
- 99149
- 99158
- 99161
- 99163
- 99170 also Spokane County
- 99171
- 99174
- 99176
- 99179
- 99333 also Adams County
- 99347 also Garfield and Columbia counties
Population of Whitman County, 2020–2025
Whitman County grew by 541 people (+1.1%) between April 2020 and July 2025: 350 more births than deaths and a net gain of 268 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 47,816 |
| 2021 | 43,257 |
| 2022 | 47,507 |
| 2023 | 47,568 |
| 2024 | 47,863 |
| 2025 | 48,512 |
Neighboring counties
- Adams County west · 21,488 people
- Garfield County south · 2,416 people
- Latah County, Idaho east · 41,842 people
- Spokane County north · 558,344 people
- Columbia County south · 4,141 people
- Franklin County west · 102,612 people
- Asotin County south · 22,545 people
- Benewah County, Idaho northeast · 10,508 people
- Nez Perce County, Idaho southeast · 42,905 people
- Lincoln County northwest · 11,982 people
Printable Whitman County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (158 KB)
- PNG (2400 px) (107 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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