ZIP code · San Diego · California · United States
ZIP code 92121 — San Diego
ZIP code 92121 serves San Diego, California.
- Postal code
- 92121Single source Value from one source, not cross-checked.
- City
- San Diego
- County
- San Diego FIPS 06073
- State
- California
- Country
- United States
- Coordinates
- 32.8919, -117.2035 — precision precise (locality)
View on OpenStreetMap - Population
- 4,157 (ZCTA, ACS 5-year)
- Population density
- 331 / sq mi
- Land area
- 12.5 sq mi (32.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $135,795
- Per-capita income
- $65,454
- Median age
- 32.7
- Households
- 1,647
- Housing units
- 1,774
- Median home value
- $1,091,600
- Median gross rent
- $2,537 / month
- Congressional districts
- CA-51 (also CA-50) (119th Congress)
- USDA hardiness zone
- 10b (35 to 40 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
Tools: compare 92121 with another ZIP · ZIPs within 25 miles · distance from 92121
Map of ZIP code 92121
Climate — monthly normals
Warmest month Aug (avg high 82°F), coldest Dec (avg low 46°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 67 | 67 | 68 | 70 | 72 | 75 | 80 | 82 | 82 | 78 | 72 | 67 |
| Avg low °F | 47 | 48 | 50 | 52 | 57 | 60 | 64 | 65 | 63 | 58 | 51 | 46 |
| Precip in | 2.3 | 2.7 | 1.6 | 0.8 | 0.3 | 0.1 | 0.1 | 0.0 | 0.1 | 0.6 | 0.9 | 2.0 |
NOAA 1991–2020 climate normals from the nearest station: SAN DIEGO MIRAMAR NAS (4.4 mi) · NOAA NCEI
Places in ZIP 92121
- 2 schools
- 2 colleges & universities
- 4 hospitals & clinics
- 12 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 87 restaurants & cafés
- 5 bars & pubs
- 7 parks
- 1 playgrounds
- 14 gyms & sports centres
- 2 post offices
- 5 places of worship
- 7 banks
- 8 gas stations
- 20 EV charging stations
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page