Postal reference / United States

91951National City, California

ZIP code 91951 is a United States postal code for National City, California. Its county association is San Diego County. The map reference point is at 32.6781, -117.0992.

State / territory
California
Recorded place name
National City
County association
San Diego
Estimated coordinate
32.6781, -117.0992
View on OpenStreetMap
ZIP prefix
919 · 38 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore California

Browse the other 2,592 ZIP codes recorded for California, sorted by code with place and county.

California directory

Other ZIP codes in National City, CA

National City has 2 ZIP codes in the reference dataset.

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
91950National CityCASan Diego0.6
92136San DiegoCASan Diego1.4
92113San DiegoCASan Diego1.6
91909Chula VistaCASan Diego2.8
91912Chula VistaCASan Diego2.8
91921Chula VistaCASan Diego2.8
92102San DiegoCASan Diego2.8
92139San DiegoCASan Diego3.0

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup