Trinidad, California Zip Codes
📍 Trinidad is in Humboldt County, California with 1 zip code; the most populous is 95570.
Trinidad is a USPS city name in Humboldt County, California with a Census population of approximately 2,523 across its ZIP codes. Humboldt County as a whole has 38 ZIP codes in this directory. Below you'll find every zip code serving Trinidad 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 Trinidad Zip Codes
Trinidad at a Glance
Trinidad has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 2,523 residents, the largest being 95570 with 2,523 people.
The median ZIP in Trinidad has a household income of $68,594 and a home value of $548,500, a price-to-income ratio of 8.0, above the 6.7 California ZIP median. Median rent across these ZIPs is $1,883 a month.
74% of households in the typical Trinidad ZIP own their home (statewide ZIP median 64%). 54% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 14.5%, above the 10.8% statewide ZIP median. Overall density is about 48 residents per square mile across 52 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.
Trinidad Zip Code Map
Interactive map of Trinidad, California zip codes. Click any marker for details.