Princeton, California Zip Codes
📍 Princeton is in Colusa County, California with 1 zip code; the most populous is 95970.
Princeton is a USPS city name in Colusa County, California with a Census population of approximately 466 across its ZIP codes. Colusa County as a whole has 8 ZIP codes in this directory. Below you'll find every zip code serving Princeton 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 Princeton Zip Codes
Princeton at a Glance
Princeton has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 466 residents, the largest being 95970 with 466 people.
The median ZIP in Princeton has a household income of $82,054 and a home value of $458,300, a price-to-income ratio of 5.6, below the 6.7 California ZIP median. Median rent across these ZIPs is $1,138 a month.
68% of households in the typical Princeton ZIP own their home (statewide ZIP median 64%). 14% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 20.6%, far above the 10.8% statewide ZIP median. Overall density is about 15 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.
Princeton Zip Code Map
Interactive map of Princeton, California zip codes. Click any marker for details.