Find the last 4 digits (ZIP+4) for an address in 90403

ZIP 90403, Santa Monica, CA is filled in. Just type the street address.

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ZIP Code 90403 – Santa Monica, CA

Santa Monica, California · Los Angeles County · Pacific time

ZIP code90403
CitySanta Monica
StateCalifornia
CountyLos Angeles County
Population23,867
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area1.41 sq mi
Center (lat, long)34.0308, -118.4921

Area codes in this area

310424

These are the area codes that most often serve ZIP 90403 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

90402 Santa Monica · 0.7 mi90406 Santa Monica · 0.8 mi90407 Santa Monica · 0.8 mi90408 Santa Monica · 0.8 mi90409 Santa Monica · 0.8 mi90410 Santa Monica · 0.8 mi90411 Santa Monica · 0.8 mi90401 Santa Monica · 1 mi

About ZIP 90403

ZIP code 90403 is assigned to Santa Monica, California. It lies in Los Angeles County. Its Census area covers about 1.41 square miles of land. The closest neighboring ZIP is 90402 (Santa Monica), about 0.7 miles away.

Every address in 90403 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources