Lagunitas, California Zip Codes
📍 Lagunitas is in Marin County, California with 1 zip code; the most populous is 94938.
Lagunitas is a USPS city name in Marin County, California with a Census population of approximately 428 across its ZIP codes. Marin County as a whole has 42 ZIP codes in this directory. Below you'll find every zip code serving Lagunitas 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 Lagunitas Zip Codes
Lagunitas at a Glance
Lagunitas has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 428 residents, the largest being 94938 with 428 people.
The median ZIP in Lagunitas has a household income of $111,800 and a home value of $1,132,400, a price-to-income ratio of 10.1, far above the 6.7 California ZIP median. Median rent across these ZIPs is $3,501 a month.
66% of households in the typical Lagunitas ZIP own their home (statewide ZIP median 64%). 54% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 5.4%, far below the 10.8% statewide ZIP median. Overall density is about 45 residents per square mile across 10 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.
Lagunitas Zip Code Map
Interactive map of Lagunitas, California zip codes. Click any marker for details.