Larkspur, California Zip Codes
📍 Larkspur is in Marin County, California with 2 zip codes; the most populous is 94939.
Larkspur is a USPS city name in Marin County, California with a Census population of approximately 7,488 across its ZIP codes. Marin County as a whole has 42 ZIP codes in this directory. Below you'll find every zip code serving Larkspur 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 Larkspur Zip Codes
Larkspur at a Glance
Larkspur 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 7,488 residents, the largest being 94939 with 7,488 people.
The median ZIP in Larkspur has a household income of $156,250 and a home value of more than $2,000,000, a price-to-income ratio of at least 12.8, far above the 6.7 California ZIP median. Median rent across these ZIPs is $2,833 a month.
48% of households in the typical Larkspur ZIP own their home (statewide ZIP median 64%). 76% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 6.9%, below the 10.8% statewide ZIP median. Overall density is about 3,120 residents per square mile across 2 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.
Larkspur Zip Code Map
Interactive map of Larkspur, California zip codes. Click any marker for details.