Atascadero, California Zip Codes
📍 Atascadero is in San Luis Obispo County, California with 2 zip codes; the most populous is 93422.
Atascadero is a USPS city name in San Luis Obispo County, California with a Census population of approximately 33,781 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 Atascadero 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 Atascadero Zip Codes
Atascadero at a Glance
Atascadero 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 33,781 residents, the largest being 93422 with 33,781 people.
The median ZIP in Atascadero has a household income of $91,257 and a home value of $655,700, a price-to-income ratio of 7.2, above the 6.7 California ZIP median. Median rent across these ZIPs is $1,715 a month.
66% of households in the typical Atascadero ZIP own their home (statewide ZIP median 64%). 31% of adults hold a bachelor's degree, in line with the 31% statewide median. The median poverty rate is 8.5%, below the 10.8% statewide ZIP median. Overall density is about 491 residents per square mile across 69 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.
Atascadero Zip Code Map
Interactive map of Atascadero, California zip codes. Click any marker for details.