Okanogan County, Washington
County seat: Okanogan · Population 45,230 (2025) · 5,266 sq mi
Okanogan County is the 26th most populous of Washington's 39 counties, with 45,230 people (2025 estimate). Its county seat is Okanogan. The map shows its 13 cities and towns and the 7 neighboring counties.
Okanogan County facts
- County seat
- Okanogan
- Population (2025 estimate)
- 45,230 +7.4% since 2020
- Land area
- 5,266 sq mi 1st largest of 39
- Water area
- 47 sq mi
- Population density
- 9 per sq mi
- Established
- 1888
- Named after
- Okanagan people First Nations and Native American people of the Pacific Northwest
- Largest city
- Omak 5,185
- Median household income
- $63,207
- Cities and towns
- 13 plus 6 CDPs
- ZIP codes
- 22
- Time zone
- Pacific
- FIPS code
- 53047
Cities and towns in Okanogan County
Okanogan County has 13 incorporated cities, towns and villages. Populations count the people living inside Okanogan County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Omak | City | 5,185 | |
| Okanogan (county seat) | City | 2,494 | |
| Brewster | City | 2,093 | |
| Oroville | City | 1,935 | |
| Tonasket | City | 1,133 | |
| Twisp | Town | 1,126 | |
| Coulee Dam | Town | 1,040 | Douglas and Grant counties |
| Pateros | City | 654 | |
| Winthrop | Town | 624 | |
| Riverside | Town | 343 | |
| Elmer City | Town | 258 | |
| Conconully | Town | 198 | |
| Nespelem | Town | 198 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Malott | 447 | |
| North Omak | 416 | |
| Nespelem Community | 358 | |
| Loomis | 135 | |
| Methow | 58 | |
| Disautel | 34 |
ZIP codes in Okanogan County
22 ZIP codes reach into Okanogan County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 98812 also Douglas County
- 98813 also Douglas County
- 98814
- 98816 also Chelan County
- 98819
- 98827
- 98829
- 98833
- 98834
- 98840
- 98841
- 98844
- 98846 also Chelan County
- 98849
- 98855
- 98856
- 98859
- 98862
- 99116 also Grant and Douglas counties
- 99124
- 99155
- 99166 also Ferry County
Population of Okanogan County, 2020–2025
Okanogan County grew by 3,133 people (+7.4%) between April 2020 and July 2025: 588 more deaths than births and a net gain of 3,738 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 42,143 |
| 2021 | 42,761 |
| 2022 | 43,138 |
| 2023 | 43,722 |
| 2024 | 44,648 |
| 2025 | 45,230 |
Neighboring counties
- Chelan County southwest · 81,941 people
- Douglas County south · 46,473 people
- Ferry County east · 7,517 people
- Whatcom County west · 236,392 people
- Skagit County west · 132,975 people
- Lincoln County southeast · 11,982 people
- Grant County south · 105,727 people
Printable Okanogan 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) (161 KB)
- PNG (2400 px) (100 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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