Find the last 4 digits (ZIP+4) for an address in 90603

ZIP 90603, Whittier, CA is filled in. Just type the street address.

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ZIP Code 90603 – Whittier, CA

Whittier, California · Los Angeles County · Pacific time

ZIP code90603
CityWhittier
StateCalifornia
CountyLos Angeles County
Population21,118
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area3.16 sq mi
Center (lat, long)33.9449, -117.9923

Area codes in this area

714657562

These are the area codes that most often serve ZIP 90603 (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

90604 Whittier · 1.7 mi90605 Whittier · 1.7 mi90637 La Mirada · 2.2 mi90631 La Habra · 2.3 mi90602 Whittier · 2.7 mi90633 La Habra · 2.8 mi90639 La Mirada · 3 mi90632 La Habra · 3 mi

About ZIP 90603

ZIP code 90603 is assigned to Whittier, California. It lies in Los Angeles County. Its Census area covers about 3.16 square miles of land. The closest neighboring ZIP is 90604 (Whittier), about 1.7 miles away.

Every address in 90603 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