ZIP Code 92040 – Lakeside, CA
Lakeside, California · San Diego County · Pacific time
| ZIP code | 92040 |
|---|---|
| City | Lakeside |
| State | California |
| County | San Diego County |
| Population | 46,216 |
| Time zone | Pacific · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 67.2 sq mi |
| Center (lat, long) | 32.9089, -116.8920 |
Area codes in this area
These are the area codes that most often serve ZIP 92040 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 92040
ZIP code 92040 is assigned to Lakeside, California. It lies in San Diego County. Its Census area covers about 67.2 square miles of land. The closest neighboring ZIP is 92021 (El Cajon), about 5.1 miles away.
Every address in 92040 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources