Castroville, California Zip Codes
📍 Castroville is in Monterey County, California with 1 zip code; the most populous is 95012.
Castroville is a USPS city name in Monterey County, California with a Census population of approximately 10,528 across its ZIP codes. Monterey County as a whole has 36 ZIP codes in this directory. Below you'll find every zip code serving Castroville 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 Castroville Zip Codes
Castroville at a Glance
Castroville has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 10,528 residents, the largest being 95012 with 10,528 people.
The median ZIP in Castroville has a household income of $73,058 and a home value of $559,200, a price-to-income ratio of 7.7, above the 6.7 California ZIP median. Median rent across these ZIPs is $1,611 a month.
49% of households in the typical Castroville ZIP own their home (statewide ZIP median 64%). 7% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 15.5%, above the 10.8% statewide ZIP median. Overall density is about 816 residents per square mile across 13 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.
Castroville Zip Code Map
Interactive map of Castroville, California zip codes. Click any marker for details.