County · California
Trinity County, California
Trinity County, California. Trinity County had 15,720 residents in 2025 by the Census Bureau's estimate, down 2.5% since 2020, a steeper fall than California's (−0.5%). It holds 14 places (14 census-designated) and 4 census tracts. GEOID 06105.
Residents, July 2025 estimate
15,720
Census Bureau estimate (no margin published)
2020 Census count: 16,112 · ACS 2020-2024: 15,860
Median household income
$53,002
±$8,924 (90% margin)
California: $99,122
Median home value
$325,800
±$23,401 (90% margin)
California: $734,700
Median gross rent
$1,073
±$210 (90% margin)
California: $2,036
How many people live in Trinity County, and is it growing?
The 2020 Census counted 16,112 residents in Trinity County. The Census Bureau estimates 15,720 for July 1, 2025, down 2.5% since 2020, a steeper fall than California's (−0.5%). The 2020-2024 American Community Survey puts the population at 15,860 over 3,179 square miles of land.
| Measure | Trinity County | California | Change since 2015-2019 |
|---|---|---|---|
| Total population | 15,860 | 39,287,377 | +3,160 |
| Households | 5,585±264 | 13,548,091 | no clear change |
| Average household size | 2.79±0.13 | 2.84 | +0.70 |
| Housing units | 8,112±20 | 14,644,735 | −806 |
Trinity County's population since 2000
From 13,022 in 2000 to 15,720 in 2025: up 20.7%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Trinity County?
Trinity County holds 14 places: 14 census-designated places. The largest is Weaverville with 4,018 residents (2020-2024). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Weaverville | 3,667 | $65,787 |
|---|---|---|
| Post MountainGEOID 0658456 | 3,032 | not published |
| HayforkGEOID 0632562 | 2,324 | $44,434 |
| Lewiston | 1,222 | $39,968 |
| Douglas City | 868 | $31,827 |
| Junction City | 658 | $48,250 |
| SalyerGEOID 0664378 | 389 | $55,000 |
| Mad RiverGEOID 0645092 | 361 | not published |
| Trinity VillageGEOID 0680483 | 278 | $87,361 |
| RuthGEOID 0663386 | 254 | $78,247 |
| Burnt RanchGEOID 0609150 | 250 | $49,226 |
| HyampomGEOID 0636098 | 241 | not published |
| Trinity CenterGEOID 0680476 | 198 | $58,750 |
| Coffee CreekGEOID 0614406 | 152 | $76,250 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Trinity County?
The median resident of Trinity County is 54.9 years old; 17.2% are under 18 and 30.2% are 65 or older. The largest group is non-Hispanic white residents at 77.4%, then non-Hispanic residents of two or more races at 6.9%. 4.8% of residents were born outside the United States.
| Measure | Trinity County | California | Change since 2015-2019 |
|---|---|---|---|
| Median age | 54.9±1.2 | 37.9 | +2.4 |
| Under 18 years | 17.2%±1.7 pts | 22.0% | – |
| 65 years and over | 30.2%±0.6 pts | 15.7% | – |
| Hispanic or Latino (any race) | 6.1% | 40.2% | −1.2 pts |
| White alone, not Hispanic | 77.4%±2.6 pts | 33.8% | −4.7 pts |
| Black or African American alone, not Hispanic | 1.1%±0.8 pts | 5.2% | – |
| Asian alone, not Hispanic | 0.6%±0.5 pts | 15.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 3.7%±2.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.6%±0.7 pts | 0.3% | – |
| Two or more races, not Hispanic | 6.9%±2.5 pts | 4.4% | – |
| Some other race alone, not Hispanic | 3.6%±2.7 pts | 0.6% | – |
| Born outside the United States | 4.8%±2.4 pts | 27.0% | no clear change |
| Speak a language other than English at home (age 5+) | 6.4%±3.1 pts | 44.4% | – |
| Civilian veterans (age 18+) | 9.1%±2.4 pts | 4.3% | – |
| With a disability | 17.4%±3.8 pts | 11.6% | – |
| No health insurance coverage | 9.3%±3.1 pts | 6.6% | no clear change |
| High school graduate or higher (age 25+) | 92.2%±2.6 pts | 84.7% | – |
| Bachelor's degree or higher (age 25+) | 22.4%±3.9 pts | 37.1% | no clear change |
| Graduate or professional degree (age 25+) | 8.3%±2.7 pts | 14.4% | – |
| Moved from another state in the past year | 0.1%±0.1 pts | 1.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Trinity County earn?
Half of Trinity County's 5,585 households earn less than $53,002 a year (±$8,924), against $99,122 in California. In 2015-2019 it was $50,269 in 2024 dollars; the margins of error cannot tell the two periods apart. 20.7% of residents live below the poverty line.
| Measure | Trinity County | California | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $53,002±$8,924 | $99,122 | no clear change |
| Mean household income | $76,682±$10,390 | $140,436 | – |
| Per capita income | $31,301±$3,345 | $49,513 | no clear change |
| People below the poverty line | 20.7%±4.8 pts | 12.0% | no clear change |
| Children under 18 below the poverty line | 21.8%±8.8 pts | 15.0% | no clear change |
| Households receiving SNAP | 11.1%±4.0 pts | 12.4% | – |
| Households with a broadband subscription | 81.9%±5.1 pts | 93.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Trinity County?
Owners occupy 71.7% of Trinity County's occupied homes and renters 28.3%. The median owner-occupied home is valued at $325,800 by its owner (±$23,401). The median renter pays $1,073 a month including utilities, and 30.2% of renters pay 35% or more of their income on rent.
| Measure | Trinity County | California | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $325,800±$23,401 | $734,700 | no clear change |
| Median gross rent | $1,073±$210 | $2,036 | no clear change |
| Renters paying 35% or more of income on rent | 30.2%±12.9 pts | 46.0% | −19.1 pts |
| Median monthly owner costs, with a mortgage | $1,640±$155 | $2,946 | – |
| Owner-occupied homes | 71.7%±6.1 pts | 55.9% | no clear change |
| Housing units | 8,112±20 | 14,644,735 | −806 |
| Homeowner vacancy rate | 1.0%±0.8 pts | 0.8% | – |
| Rental vacancy rate | 6.1%±4.4 pts | 4.2% | – |
| Single-family detached homes | 78.4%±3.9 pts | 57.0% | – |
| Mobile homes | 16.2%±3.5 pts | 3.5% | – |
| Built 2020 or later | 0.4%±0.4 pts | 1.3% | – |
| Built 1939 or earlier | 7.6%±3.2 pts | 8.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Trinity County building?
Builders took permits for 33 new housing units across Trinity County in 2025 (33 single-family), 2.1 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Trinity County get to work?
68.4% of Trinity County's workers drive alone and 21.3% work from home. The average trip to work takes 27.2 minutes. The unemployment rate in 2020-2024 averaged 8.4%.
| Measure | Trinity County | California | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 42.1%±4.6 pts | 63.8% | – |
| Unemployment rate | 8.4%±3.4 pts | 6.6% | no clear change |
| Drove alone to work | 68.4%±8.9 pts | 65.7% | – |
| Carpooled | 4.2%±2.1 pts | 9.5% | – |
| Public transportation | 0.8%±0.9 pts | 2.9% | – |
| Walked | 0.8%±0.7 pts | 2.4% | – |
| Worked from home | 21.3%±8.7 pts | 17.2% | no clear change |
| Mean travel time to work | 27.2 min±6.5 | 28.7 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Trinity County's census tracts?
Trinity County is divided into 4 census tracts. Among those with a reliable estimate, median household income runs from $45,714 (Tract 1.01) to $55,938 (Tract 2).
| Tract 1.0106105000101 | 3,629±616 | $45,714 |
|---|---|---|
| Tract 1.0206105000102 | 5,071±712 | $54,923 |
| Tract 206105000200 | 2,708±543 | $55,938 |
| Tract 506105000500 | 4,452±710 | $46,479 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Trinity County compare with California's other counties?
| Measure | Rank |
|---|---|
| Population | 54th of 58 |
| Growth 2020-2025 | 38th of 58 |
| Residents per square mile | 53rd of 58 |
| Median household income | 58th of 58 |
| Median home value | 52nd of 58 |
| Median gross rent | 53rd of 56 |
| Poverty rate | 1st of 57 |
| Bachelor's degree or higher | 42nd of 58 |
| Median age | 1st of 58 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Trinity County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.