Zip Code 90604 — Whittier, CA

ZIP Code 90604 is associated with Whittier, CA, in Los Angeles County. The listed population estimate is 39,276; estimated density is 3,603.0 people per square mile. Among records with population estimates, it ranks #100 of 288 in Los Angeles County and #395 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (33.930120, -118.012260)

Data MetricLocal Statistic
Postal / Zip Code90604
Primary CityWhittier
State / ProvinceCA
CountyLos Angeles
Total Population39,276
Population Density3,603.0 people/sq mi
TimezoneAmerica/Los_Angeles

How 90604 Compares

MetricZIP 90604Los Angeles County recordsCA records
Population estimate39,2769,807,501 (sum)39,286,245 (sum)
Population Density3,603.0 /sq mi----
County population rank#100 of 288----
State population rank#395 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 90603Whittier1.5 mi21,118
ZIP 90605Whittier1.6 mi39,387
ZIP 90639La Mirada1.7 mi1,671
ZIP 90638La Mirada1.9 mi45,933
ZIP 90670Santa Fe Springs2.9 mi17,851

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 →