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Trinity County, CA
14 cities and towns and 12 ZIP codes in Trinity County, California.
Population
15,860
Land area
3,179sq mi
People per sq mi
5
ZIP codes
12
Cities and towns in Trinity County
Trinity County at a glance
- Trinity County is 98% less dense than California as a whole.
- The median household income is $53,002, 47% below the California median of $99,122.
- A typical owner-occupied home is valued at $325,800 (56% below California) and median rent is $1,073 a month.
- Its largest cities are Weaverville (4,018), Hayfork (2,537) and Lewiston (2,020).
Local data for Trinity County, CA
Counts from official public data
Housing and community stats
Trinity County, CA, American Community Survey 2020-2024
Median household income
$53,002
Poverty rate
20.7%
Median home value
$325,800
Prices +6.4% in a year
Median rent
$1,073/mo
Homeownership
71.7%
Bachelor's or higher
22.4%
Median age
54.9
Average commute
27.2 min
Largest reported origins and ancestries: German Americans (1,807), Irish Americans (1,480), Mexican Americans (594).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
5.5%
Aug 2026, 0.0 pts in a year
Average annual pay
$58,963
2,894 jobs, 2025
Income per person
$42,191
BEA, 2024
Federal spending
$97.41M
FY 2026, $6,046 per person
PPP loans
$7.01M
121 loans, 873 jobs reported
Campaign donations
$67.68K
Itemized, 2026 cycle
How people get to work
Trinity County, CA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone68.4%
- Carpooled4.2%
- Public transit0.8%
- Walked0.8%
- Bicycle0.4%
- Taxi, ride-hailing, motorcycle or other4.1%
- Worked from home21.3%
Average one-way commute: 27.2 minutes for people who do not work from home.
Environment and hazard risk
Trinity County, CA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: landslide
Storm events since 1996
200
Most often winter weather
Flood insurance policies
55
0.7% of homes, county
July high / Jan low
97° / 34°F
35.8 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Trinity County, CA, CDC PLACES estimates
Obesity
33.3%
U.S. 33.3% about the same
Diabetes
15.9%
U.S. 12.1% +3.8 pts
Smoking
16.9%
U.S. 12.8% +4.1 pts
Uninsured (18-64)
7.0%
U.S. 11.1% -4.1 pts
Cities, towns and ZIP codes in Trinity County
Population shown
Frequently asked questions
- What is the largest city in Trinity County, CA?
- Weaverville is the largest city or town in Trinity County, with about 4,018 residents.
- How many ZIP codes are in Trinity County?
- Trinity County includes 12 ZIP Code Tabulation Areas, including 95527, 95552, 95563, 95595, 96010.
- What is the population of Trinity County, CA?
- About 15,860 people live in Trinity County, based on American Community Survey 5-year estimates.
- What counties border Trinity County?
- Trinity County borders Shasta County, Humboldt County, Mendocino County, Tehama County, Siskiyou County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023