Monrovia, California Zip Codes
📍 Monrovia is in Los Angeles County, California with 2 zip codes; the most populous is 91016.
Monrovia is a USPS city name in Los Angeles County, California with a Census population of approximately 41,822 across its ZIP codes. Los Angeles County as a whole has 538 ZIP codes in this directory. Below you'll find every zip code serving Monrovia with population, income and home value, a map, and the city's affordability profile.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Monrovia Zip Codes
Monrovia at a Glance
Monrovia has 2 ZIP codes in this directory: 1 standard delivery ZIP and 1 PO Box or unique ZIP that carries no resident population in Census data. The 1 ZIP with published Census housing data cover 41,822 residents, the largest being 91016 with 41,822 people.
The median ZIP in Monrovia has a household income of $95,606 and a home value of $820,600, a price-to-income ratio of 8.6, above the 6.7 California ZIP median. Median rent across these ZIPs is $1,949 a month.
49% of households in the typical Monrovia ZIP own their home (statewide ZIP median 64%). 43% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 9.7%, below the 10.8% statewide ZIP median. Overall density is about 4,920 residents per square mile across 9 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 California ZIP Code Affordability Report.
Monrovia Zip Code Map
Interactive map of Monrovia, California zip codes. Click any marker for details.