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Zip Code 92121 — San Diego, CA

ZIP Code 92121 is associated with San Diego, CA, in San Diego County. The listed population estimate is 3,974; estimated density is 122.4 people per square mile. Among records with population estimates, it ranks #84 of 112 in San Diego County and #1162 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (32.897300, -117.202310)

Data MetricLocal Statistic
Postal / Zip Code92121
Primary CitySan Diego
State / ProvinceCA
CountySan Diego
Total Population3,974
Population Density122.4 people/sq mi
TimezoneAmerica/Los_Angeles

How 92121 Compares

MetricZIP 92121San Diego County recordsCA records
Population estimate3,9743,322,512 (sum)39,286,245 (sum)
Population Density122.4 /sq mi----
County population rank#84 of 112----
State population rank#1162 of 1,762----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CA

ZIP CodeCityDistancePopulation estimate
ZIP 92093La Jolla2.3 mi7,167
ZIP 92161San Diego2.3 mi29
ZIP 92092La Jolla2.5 mi528
ZIP 92122San Diego2.8 mi45,411
ZIP 92130San Diego3.5 mi60,768

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →