Lafayette, California Zip Codes
📍 Lafayette is in Contra Costa County, California with 1 zip code; the most populous is 94549.
Lafayette is a USPS city name in Contra Costa County, California with a Census population of approximately 28,456 across its ZIP codes. Contra Costa County as a whole has 53 ZIP codes in this directory. Below you'll find every zip code serving Lafayette 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 Lafayette Zip Codes
Lafayette at a Glance
Lafayette has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 28,456 residents, the largest being 94549 with 28,456 people.
The median ZIP in Lafayette has a household income of $221,148 and a home value of $1,838,500, a price-to-income ratio of 8.3, above the 6.7 California ZIP median. Median rent across these ZIPs is $2,938 a month.
75% of households in the typical Lafayette 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 4.7%, far below the 10.8% statewide ZIP median. Overall density is about 1,437 residents per square mile across 20 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.
Lafayette Zip Code Map
Interactive map of Lafayette, California zip codes. Click any marker for details.