Sylmar, California Zip Codes
📍 Sylmar is in Los Angeles County, California with 2 zip codes; the most populous is 91342.
Sylmar is a USPS city name in Los Angeles County, California with a Census population of approximately 92,580 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 Sylmar 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 Sylmar Zip Codes
Sylmar at a Glance
Sylmar 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 92,580 residents, the largest being 91342 with 92,580 people.
The median ZIP in Sylmar has a household income of $89,264 and a home value of $605,900, a price-to-income ratio of 6.8, in line with the 6.7 California ZIP median. Median rent across these ZIPs is $1,862 a month.
67% of households in the typical Sylmar ZIP own their home (statewide ZIP median 64%). 20% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 13.2%, above the 10.8% statewide ZIP median. Overall density is about 2,039 residents per square mile across 45 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.
Sylmar Zip Code Map
Interactive map of Sylmar, California zip codes. Click any marker for details.