Winthrop town, Washington
Official LSAD Designation: Winthrop town • Census GEOID: 5379380
• Okanogan County
Winthrop town is an incorporated town in Okanogan County, Washington. According to official records from the Census (2025), Winthrop town had an estimated population of 624 residents. Official Census Bureau geographic records classify this community under LSAD designation Winthrop town (GEOID 5379380).
Local Government Administration U.S. Census Bureau GMAF
Town Of Winthrop
Municipal
Official Title:
Clerk/treasurer
Address:
PO BOX 459, WINTHROP WA 98862-0459
County Of Okanogan
County
Official Title:
Clerk Of The Board
Address:
123 5TH AVE N, RM 150, OKANOGAN WA 98840-9436
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 624 | 2025 |
| Median Household Income | $66,908 | 2020-2024 |
| Median Home Value | $475,000 | 2020-2024 |
| Land Area | 0.97 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).