Trinity County, California
Located in California, Trinity County has a population of 15,860 residents and a median age of 54.9 years, making it the #2,106 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 20.7%. The median home value is $325,800, and the median household income is $53,002, which is 29% below the national median.
Demographics
Trinity County has a population of 15,860, making it the #2,106 most populous county in the US. The median age is 54.9 years, which is 41.1% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Trinity County is $53,002, ranking #2,601 out of 3,222 counties — 29.5% below the national median. The poverty rate is 20.7% and unemployment stands at 8.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Trinity County is $325,800 (+15.6% vs national). Renters pay a median of $1,073/mo and the homeownership rate is 71.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Trinity County, 22.4% of adults age 25+ hold a bachelor's degree or higher, which is 33.5% below the national average, ranking #1,591 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Trinity County is 77.0 years. 19.5% of adults report poor or fair health and 6.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.1% of adults in Trinity County smoke , 32.4% are obese , and 21.2% report excessive drinking. The drug overdose death rate is 25.0 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Trinity County is 11.3 per 100,000 and the suicide rate is 31.1 per 100,000. Motor vehicle deaths occur at a rate of 48.8 per 100,000.
Homicide Rate Trend
Families & Children
29.5% of children in Trinity County live in poverty . The teen birth rate is 22.5 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Trinity County is 61.0%. The mean commute time is 28.6 min, which is 3.7% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Trinity County voted Republican with a margin of 9.4%. The vote was 43.4% Dem / 52.8% Rep. Compared to 2020, the margin shifted 4.1 toward Republicans .
Vote Share Over Time
About Trinity County, California
Trinity County, California has a total population of 15,860, making it the 2,106th most populous county in the United States. The median age in Trinity County is 54.9 years, which is 41.1% above the national median of 38.9 years.
The median household income in Trinity County is $53,002, which ranks #2,601 of 3,222 counties nationwide. This is 29.5% below the national median of $75,149. The poverty rate is 20.7%, higher than the national rate of 12.6%. The unemployment rate stands at 8.3%.
The median home value in Trinity County is $325,800, 15.6% above the national median. Renters in Trinity County pay a median gross rent of $1,073 per month. The homeownership rate is 71.7%, compared to the national rate of 64.4%.
In Trinity County, 22.4% of residents aged 25 and older hold a bachelor's degree or higher, 33.5% below the national average of 33.7%. Health insurance coverage stands at 90.7% of the population. The average commute time for workers is 28.6 min.
Trinity County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 77.4% of the population, followed by Two or More Races (6.9%) and Hispanic or Latino (6.1%).
All data for Trinity County, California comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.