Zip Code 91791 — West Covina, CA

ZIP Code 91791 is associated with West Covina, CA, in Los Angeles County. The listed population estimate is 33,028; estimated density is 1,919.9 people per square mile. Among records with population estimates, it ranks #135 of 288 in Los Angeles County and #538 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (34.061340, -117.894250)

Data MetricLocal Statistic
Postal / Zip Code91791
Primary CityWest Covina
State / ProvinceCA
CountyLos Angeles
Total Population33,028
Population Density1,919.9 people/sq mi
TimezoneAmerica/Los_Angeles

How 91791 Compares

MetricZIP 91791Los Angeles County recordsCA records
Population estimate33,0289,807,501 (sum)39,286,245 (sum)
Population Density1,919.9 /sq mi----
County population rank#135 of 288----
State population rank#538 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 91723Covina1.7 mi17,733
ZIP 91792West Covina2.5 mi30,629
ZIP 91790West Covina2.5 mi44,710
ZIP 91722Covina2.6 mi35,099
ZIP 91724Covina2.6 mi28,352

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 →