Union Gap city, Washington
Official LSAD Designation: Union Gap city • Census GEOID: 5373290
• Yakima County
Union Gap city is an incorporated city in Yakima County, Washington. According to official records from the Census (2025), Union Gap city had an estimated population of 6,617 residents. Official Census Bureau geographic records classify this community under LSAD designation Union Gap city (GEOID 5373290).
Local Government Administration U.S. Census Bureau GMAF
City Of Union Gap
Municipal
Official Title:
City Mayor
Address:
PO BOX 3008, UNION GAP WA 98903-0008
County Of Yakima
County
Official Title:
Chairperson
Address:
128 N 2ND ST, RM 232, YAKIMA WA 98901-2639
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 6,617 | 2025 |
| Median Household Income | $59,651 | 2020-2024 |
| Median Home Value | $210,600 | 2020-2024 |
| Land Area | 5.58 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).