Cayucos, California Zip Codes
📍 Cayucos is in San Luis Obispo County, California with 1 zip code; the most populous is 93430.
Cayucos is a USPS city name in San Luis Obispo County, California with a Census population of approximately 2,941 across its ZIP codes. San Luis Obispo County as a whole has 34 ZIP codes in this directory. Below you'll find every zip code serving Cayucos 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 Cayucos Zip Codes
Cayucos at a Glance
Cayucos has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 2,941 residents, the largest being 93430 with 2,941 people.
The median ZIP in Cayucos has a household income of $82,799 and a home value of $940,600, a price-to-income ratio of 11.4, far above the 6.7 California ZIP median. Median rent across these ZIPs is $1,549 a month.
60% of households in the typical Cayucos ZIP own their home (statewide ZIP median 64%). 43% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 9.8%, below the 10.8% statewide ZIP median. Overall density is about 41 residents per square mile across 72 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.
Cayucos Zip Code Map
Interactive map of Cayucos, California zip codes. Click any marker for details.