Zip Code 91803 — Alhambra, CA

ZIP Code 91803 is associated with Alhambra, CA, in Los Angeles County. The listed population estimate is 27,715; estimated density is 3,282.6 people per square mile. Among records with population estimates, it ranks #172 of 288 in Los Angeles County and #654 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (34.074900, -118.146240)

Data MetricLocal Statistic
Postal / Zip Code91803
Primary CityAlhambra
State / ProvinceCA
CountyLos Angeles
Total Population27,715
Population Density3,282.6 people/sq mi
TimezoneAmerica/Los_Angeles

How 91803 Compares

MetricZIP 91803Los Angeles County recordsCA records
Population estimate27,7159,807,501 (sum)39,286,245 (sum)
Population Density3,282.6 /sq mi----
County population rank#172 of 288----
State population rank#654 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 91801Alhambra1.5 mi53,381
ZIP 91754Monterey Park1.7 mi32,248
ZIP 90032Los Angeles1.9 mi43,117
ZIP 91030South Pasadena2.5 mi26,068
ZIP 91755Monterey Park2.6 mi26,810

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 →