Tumwater city, Washington
Official LSAD Designation: Tumwater city • Census GEOID: 5372905
• Thurston County
Tumwater city is an incorporated city in Thurston County, Washington. According to official records from the Census (2025), Tumwater city had an estimated population of 28,010 residents. Official Census Bureau geographic records classify this community under LSAD designation Tumwater city (GEOID 5372905).
Local Government Administration U.S. Census Bureau GMAF
City Of Tumwater
Municipal
Official Title:
Mayor
Address:
555 ISRAEL RD SW, TUMWATER WA 98501-6568
County Of Thurston
County
Official Title:
County Manager
Address:
2000 LAKERIDGE DR SW, RM 269, OLYMPIA WA 98502-6045
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 28,010 | 2025 |
| Median Household Income | $95,212 | 2020-2024 |
| Median Home Value | $472,200 | 2020-2024 |
| Land Area | 17.74 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).