Prosser city, Washington
Official LSAD Designation: Prosser city • Census GEOID: 5356450
• Benton County
Prosser city is an incorporated city in Benton County, Washington. According to official records from the Census (2025), Prosser city had an estimated population of 6,654 residents. Official Census Bureau geographic records classify this community under LSAD designation Prosser city (GEOID 5356450).
Local Government Administration U.S. Census Bureau GMAF
City Of Prosser
Municipal
Official Title:
City Planner
Address:
601 7TH ST, PROSSER WA 99350-1459
County Of Benton
County
Official Title:
Finance Manager
Address:
PO BOX 190, PROSSER WA 99350-0190
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 6,654 | 2025 |
| Median Household Income | $76,985 | 2020-2024 |
| Median Home Value | $314,000 | 2020-2024 |
| Land Area | 5.19 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).