Thornton, California Zip Codes
📍 Thornton is in San Joaquin County, California with 1 zip code; the most populous is 95686.
Thornton is a USPS city name in San Joaquin County, California with a Census population of approximately 1,194 across its ZIP codes. San Joaquin County as a whole has 42 ZIP codes in this directory. Below you'll find every zip code serving Thornton 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 Thornton Zip Codes
Thornton at a Glance
Thornton has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 1,194 residents, the largest being 95686 with 1,194 people.
The median ZIP in Thornton has a household income of $38,611 and a home value of $357,600, a price-to-income ratio of 9.3, above the 6.7 California ZIP median. Median rent across these ZIPs is $834 a month.
55% of households in the typical Thornton ZIP own their home (statewide ZIP median 64%). 8% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 36.1%, far above the 10.8% statewide ZIP median. Overall density is about 37 residents per square mile across 32 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.
Thornton Zip Code Map
Interactive map of Thornton, California zip codes. Click any marker for details.