La Mesa, CA ZIP codes
La Mesa, California has 4 ZIP codes, including 2 PO Box ZIPs. They are in San Diego County.
- Population in these ZIPs
- 74,642
- Avg. median income
- $102,900population-weighted
- Typical home value
- $902,000population-weighted
- Metro area
- San Diego-Chula Vista-Carlsbad, CA
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La Mesa, CA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 91941 | San Diego County | 33,218 | $115,381 | $1,021,000 |
| 91942 | San Diego County | 41,424 | $92,896 | $806,500 |
| 91943 PO Box | San Diego County | — | — | — |
| 91944 PO Box | San Diego County | — | — | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near La Mesa
- Lemon Grove 2 mi
- Spring Valley 3 mi
- Santee 6 mi
- El Cajon 6 mi
- Bonita 7 mi
- San Diego 8 mi
- National City 8 mi
- Chula Vista 9 mi
- Coronado 12 mi
- Lakeside 12 mi
- Poway 14 mi
- Imperial Beach 15 mi
Frequently asked questions
What county is La Mesa, California in?
La Mesa ZIP codes are in San Diego County.
Which La Mesa ZIP codes are PO Boxes?
91943 and 91944 are PO Box or single-organization ZIP codes; they have no residential delivery area.