El Cajon, CA ZIP codes
El Cajon, California has 4 ZIP codes, including 1 PO Box ZIP. They are in San Diego County.
- Population in these ZIPs
- 173,694
- Avg. median income
- $82,000population-weighted
- Typical home value
- $816,000population-weighted
- Metro area
- San Diego-Chula Vista-Carlsbad, CA
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El Cajon, CA ZIP codes list
| ZIP code | County | Population | Median income | Typical home value |
|---|---|---|---|---|
| 92019 | San Diego County | 45,351 | $101,973 | $874,200 |
| 92020 | San Diego County | 57,842 | $76,032 | $824,100 |
| 92021 | San Diego County | 70,501 | $74,013 | $771,800 |
| 92022 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 El Cajon
- Santee 5 mi
- La Mesa 6 mi
- Spring Valley 6 mi
- Lakeside 8 mi
- Lemon Grove 8 mi
- San Ysidro 10 mi
- Alpine 10 mi
- Bonita 11 mi
- Jamul 11 mi
- Chula Vista 13 mi
- Poway 13 mi
- San Diego 14 mi
Frequently asked questions
What county is El Cajon, California in?
El Cajon ZIP codes are in San Diego County.
Which El Cajon ZIP codes are PO Boxes?
92022 is a PO Box or single-organization ZIP code; it has no residential delivery area.