Sumner city, Washington
Official LSAD Designation: Sumner city • Census GEOID: 5368435
• Pierce County
Sumner city is an incorporated city in Pierce County, Washington. According to official records from the Census (2025), Sumner city had an estimated population of 10,871 residents. Official Census Bureau geographic records classify this community under LSAD designation Sumner city (GEOID 5368435).
Local Government Administration U.S. Census Bureau GMAF
City Of Sumner
Municipal
Official Title:
Mayor
Address:
1104 MAPLE ST, STE 250, SUMNER WA 98390-1447
County Of Pierce
County
Official Title:
Assistant To Director Of Budget & Finance
Address:
615 S 9TH ST, STE 100, TACOMA WA 98405-4673
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 10,871 | 2025 |
| Median Household Income | $98,191 | 2020-2024 |
| Median Home Value | $519,900 | 2020-2024 |
| Land Area | 7.55 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).