Zip Code 91016 — Monrovia, CA

ZIP Code 91016 is associated with Monrovia, CA, in Los Angeles County. The listed population estimate is 41,140; estimated density is 1,873.6 people per square mile. Among records with population estimates, it ranks #91 of 288 in Los Angeles County and #368 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (34.152460, -118.000650)

Data MetricLocal Statistic
Postal / Zip Code91016
Primary CityMonrovia
State / ProvinceCA
CountyLos Angeles
Total Population41,140
Population Density1,873.6 people/sq mi
TimezoneAmerica/Los_Angeles

How 91016 Compares

MetricZIP 91016Los Angeles County recordsCA records
Population estimate41,1409,807,501 (sum)39,286,245 (sum)
Population Density1,873.6 /sq mi----
County population rank#91 of 288----
State population rank#368 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 91008Duarte1.8 mi743
ZIP 91006Arcadia1.9 mi31,582
ZIP 91010Duarte2.5 mi27,589
ZIP 91024Sierra Madre2.9 mi10,940
ZIP 91007Arcadia3.2 mi33,029

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 →