Walnut city, California
Official LSAD Designation: Walnut city • Census GEOID: 0683332
• Los Angeles County
Walnut city is an incorporated city in Los Angeles County, California. According to official records from the Census (2025), Walnut city had an estimated population of 27,316 residents. Official Census Bureau geographic records classify this community under LSAD designation Walnut city (GEOID 0683332).
Local Government Administration U.S. Census Bureau GMAF
City Of Walnut
Municipal
Official Title:
Management Analyst
Address:
21201 LA PUENTE RD, WALNUT CA 91789-2018
County Of Los Angeles
County
Official Title:
Executive Officer Board Of Supervisors
Address:
500 W TEMPLE ST, ROOM 383, LOS ANGELES CA 90012
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 27,316 | 2025 |
| Median Household Income | $129,449 | 2020-2024 |
| Median Home Value | $1,014,000 | 2020-2024 |
| Land Area | 8.99 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).