Trinity County, California
Trinity County, California, has 15,720 residents (July 2025 estimate). Its county seat is Weaverville. It uses Pacific Time and covers 3,179 sq mi (8,234 km²) of land.
- Resident population, July 2025
- 15,720
- Land area
- 3,179 sq mi (8,234 km²)
- County seat or government
- Weaverville
- Time zone
- Pacific TimeUTC-08:00 in January; UTC-07:00 in July
- Median household income
- $53,002 ± $8,924
- Median home value
- $325,800 ± $23,401
- Median rent, with utilities
- $1,073 ± $210
- Homes lived in by their owners
- 71.7% ± 6.3 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Redding, CA metro area, Eureka-Arcata, CA micro area, Red Bluff, CA micro area, and Ukiah, CA micro area
- Water area
- 28.3 sq mi (73.4 km²)
- State
- California
- County code (FIPS)
- 06105
- Coordinates (central point)
- 40.647858, -123.114666
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Trinity County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Pacific TimeAmerica/Los_Angeles | UTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 960934,320 people
- 960412,889 people
- 960522,366 people
- 960481,297 people
- 960241,082 people
- 96091932 people
- 95526745 people
- 95527622 people
- 95552586 people
- 95563577 people
- 96046489 people
- 96010212 people
14 ZIP Code areas overlap Trinity County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Trinity County, largest first
- Trinity Alps Unified School District (9-12)6,519 people
- Klamath-Trinity Joint Unified School District4,909 people
- Trinity Alps Unified School District4,402 people
- Mountain Valley Unified School District3,467 people
- Lewiston Elementary School District2,660 people
- Junction City Elementary School District1,297 people
- Southern Trinity Joint Unified School District1,233 people
- Douglas City Elementary School District918 people
- Burnt Ranch Elementary School District712 people
- Trinity Center Elementary School District616 people
- Coffee Creek Elementary School District316 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Tribal areas in Trinity County, largest first
American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Weaverville, California (CDP)4,018 people
- Hayfork, California (CDP)2,537 people
- Lewiston, California (CDP)2,020 people
- Junction City, California (CDP)1,190 people
- Douglas City, California (CDP)1,060 people
- Salyer, California (CDP)487 people
- Ruth, California (CDP)480 people
- Trinity Center, California (CDP)414 people
- Burnt Ranch, California (CDP)318 people
- Coffee Creek, California (CDP)280 people
- Mad River, California (CDP)272 people
- Post Mountain, California (CDP)233 people
All 14
- Trinity Village, California (CDP)209 people
- Hyampom, California (CDP)102 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Humboldt County, California43 mi west
- Shasta County, California57 mi east
- Tehama County, California59 mi southeast
- Siskiyou County, California72 mi northeast
- Mendocino County, California86 mi south
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.