Trinidad, CA ZIP Codes & Directory
Trinidad is located in Humboldt County in California. Browse all active 5-digit USPS ZIP codes serving Trinidad and surrounding Humboldt County delivery districts.
All ZIP Codes in Trinidad, CA
1 CodesAbout Trinidad Mail Delivery & Postal Administration
ZIP codes in Trinidad are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Humboldt County and surrounding California metropolitan districts.
Frequently Asked Questions About Trinidad, CA ZIP Codes
How many ZIP codes serve Trinidad, California? ▾
Trinidad, California is served by 1 active USPS postal delivery codes: 95570.
What county is Trinidad located in? ▾
Trinidad is an incorporated city located within Humboldt County, California.
What is the population and demographic size of Trinidad? ▾
According to official U.S. Census Bureau data, Trinidad has an estimated population of 2,543 residents and is situated within the undefined.
How does mail sorting and delivery work in Trinidad? ▾
Mail delivery in Trinidad is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Humboldt County and surrounding California counties.
How much does it cost to ship a package to Trinidad, CA? ▾
Shipping costs to Trinidad depend on the package weight, dimensions, shipping carrier (USPS, UPS, FedEx), and the distance from the origin ZIP code. To calculate exact postage rates, use our shipping cost estimator tool.
What is the standard delivery time for mail to Trinidad? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Trinidad, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.