Ontario city, California
Official LSAD Designation: Ontario city • Census GEOID: 0653896
• San Bernardino County
Ontario city is an incorporated city in San Bernardino County, California. According to official records from the Census (2025), Ontario city had an estimated population of 187,013 residents. Official Census Bureau geographic records classify this community under LSAD designation Ontario city (GEOID 0653896).
Local Government Administration U.S. Census Bureau GMAF
City Of Ontario
Municipal
Official Title:
Deputy City Manager
Address:
303 E B ST, ONTARIO CA 91764-4196
County Of San Bernardino
County
Official Title:
Chairman
Address:
385 N ARROWHEAD AVE, FL 5, SAN BERNARDINO CA 92415-0110
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 187,013 | 2025 |
| Median Household Income | $88,941 | 2020-2024 |
| Median Home Value | $607,600 | 2020-2024 |
| Land Area | 49.98 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).