Trinidad is a city in Humboldt County, California, home to about 347 people across 0.5 square miles. It has no ZIP code of its own: it’s part of 95570.
Homes sold for a median of $447 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Westhaven-Moonstone; part is in Trinidad
Each card is that ZIP code’s whole market, including any part outside Trinidad. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Trinidad’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Trinidad well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Sacramento International Airport (SMF)212 miles away |
|---|---|
| Closer regional airport | California Redwood Coast-Humboldt County Airport (ACV)6 miles away |
| Nearest city of 250,000+ | Sacramento, CA223 miles away |
| Nearest city of 1 million+ | Los Angeles, CA579 miles away |
Straight-line distances from the center of Trinidad; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Trinidad had 307 residents in the 2020 census, down 1% since 2000.
It’s the 1287th largest of 1,563 towns in California by population.
Humboldt County grew from 27,104 residents in 1900 to 136,463 in 2020.
Humboldt County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 65°F in summer, and winter lows average 40°F. About 46.3 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Arcata Eureka Ap, CA weather station (6 miles away).
34,729 jobs at 3,178 businesses in Humboldt County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
6 doctors and other health care providers list an office in Trinidad.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Specialist doctors | 1 |
| Mental health providers | 4 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Grocery stores (1 nearby)
Libraries (1 nearby)
Museums (1 nearby)
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Big Lagoon Union Elementary, Trinidad Union Elementary. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Big Lagoon ElementaryTrinidad | K–8 | 15 | Public | 6.8 mi |
| Trinidad UnionTrinidad | K–8 | 161 | Public | 0.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Westhaven-Moonstone and Big Lagoon.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.