San Dimas, California Zip Codes
📍 San Dimas is in Los Angeles County, California with 1 zip code; the most populous is 91773.
San Dimas is a USPS city name in Los Angeles County, California with a Census population of approximately 34,066 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 San Dimas 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 San Dimas Zip Codes
San Dimas at a Glance
San Dimas has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 34,066 residents, the largest being 91773 with 34,066 people.
The median ZIP in San Dimas has a household income of $101,466 and a home value of $714,400, a price-to-income ratio of 7.0, above the 6.7 California ZIP median. Median rent across these ZIPs is $2,202 a month.
71% of households in the typical San Dimas ZIP own their home (statewide ZIP median 64%). 38% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 9.4%, below the 10.8% statewide ZIP median. Overall density is about 2,271 residents per square mile across 15 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.
San Dimas Zip Code Map
Interactive map of San Dimas, California zip codes. Click any marker for details.