Hamilton City, California Zip Codes
📍 Hamilton City is in Glenn County, California with 1 zip code; the most populous is 95951.
Hamilton City is a USPS city name in Glenn County, California with a Census population of approximately 2,522 across its ZIP codes. Glenn County as a whole has 7 ZIP codes in this directory. Below you'll find every zip code serving Hamilton City 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 Hamilton City Zip Codes
Hamilton City at a Glance
Hamilton City has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 2,522 residents, the largest being 95951 with 2,522 people.
The median ZIP in Hamilton City has a household income of $56,685 and a home value of $289,800, a price-to-income ratio of 5.1, below the 6.7 California ZIP median. Median rent across these ZIPs is $843 a month.
61% of households in the typical Hamilton City ZIP own their home (statewide ZIP median 64%). 10% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 13.8%, above the 10.8% statewide ZIP median. Overall density is about 129 residents per square mile across 20 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.
Hamilton City Zip Code Map
Interactive map of Hamilton City, California zip codes. Click any marker for details.