Trinity County, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 54th-largest in California
The population of Trinity County, California is 15,886 as of the 2023 American Community Survey, making it the 54th-largest county in California. The median household income is $53,498, the median home value is $329,000, and the median age is 54.8.
The population of Trinity County has grown 13.7% since 2010 (13,755 → 15,642), a +0.92% annualized rate.
15,886
Population
+0.92%
Annual growth
5
People / sq mi
$53,498
Median Income
$329,000
Median Home Value
Trinity County covers 3,179 sq mi of land at 5.0 people per square mile.
About Trinity County, CA
What sets Trinity County apart is where people work — remote work is unusually prominent here, at 25.9% versus 14.0% nationally. With 15,886 residents, Trinity County is a county in California.
Incomes run on the lower side: a median household income of $53,498, below the US median of $78,538. Poverty is relatively low for US counties at 6.9%, below the national 12.4%. A typical home is worth $329,000, with typical rent around $922.
18.0% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. An unusually large 25.9% of workers are remote, above the national 14.0%, and the average commute runs about 27 minutes each way.
The remote-work concentration is telling in Trinity County — it skews toward higher-income, college-educated workers and reshapes both commute patterns and housing demand.
Trinity County Population History (2010-2024)
The county of Trinity County had a population of 13,755 in 2010 and 15,642 in 2024, a 13.7% growth over 14 years. The peak was 16,102 in 2021. Average annual growth rate: 1.20%.
15,642
Population (2024)
13,755
Population (2010)
16,102
Peak (2021)
1.20%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 13,755 |
| 2011 | 13,685 |
| 2012 | 13,494 |
| 2013 | 13,427 |
| 2014 | 13,126 |
| 2015 | 13,094 |
| 2016 | 12,827 |
| 2017 | 12,727 |
| 2018 | 12,598 |
| 2019 | 12,337 |
| 2020 | 16,095 |
| 2021 | 16,102 |
| 2022 | 15,777 |
| 2023 | 15,684 |
| 2024 | 15,642 |
Race & Ethnicity
| White | 80.5% |
| Black or African American | 0.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 5.6% |
| Two or More Races | 0.5% |
Age & Sex
54.8
Median Age
51.1%
Female
48.9%
Male
29.3%
Age 65+
Age Distribution
Children (under 15): 15.2% · Seniors (65+): 29.3%
Income & Poverty
| Median household income | $53,498$-42,836 vs state |
| Mean household income | $80,934 |
| Per-capita income | $32,271 |
| Poverty rate | 6.9%-1.5% vs state |
| Unemployment rate | 2.3% |
| Employment-to-population | 37.2% |
Top Industries by Employment
The largest employment sector in Trinity County is education & health care, accounting for 19.8% of workers.
How residents commute
1.5%
Drive alone
0.9%
Carpool
62.4%
Public transit
25.9%
Work from home
26.6 min
Avg commute
Housing
$329,000$-366,400 vs state
Median home value
$922
Median rent
73.0%
Homeownership rate
8,122
Total housing units
66.2%
Occupied
33.8%
Vacant
27.0%
Renter-occupied
Social & access
87.6%
With health insurance
85.8%
With broadband internet
20.6%
Foreign-born
9.0%
Veterans (18+)
17.7%
With a disability
90.9%
Speak language other than English at home
Education
94.8%
High School+
18.0%
Bachelor's+
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Part of California
Metro areas in California
County rankings
Frequently Asked Questions
Trinity County, California has a population of 15,886 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 54th-largest county in California. Population density is 5 people per square mile.
The population of Trinity County has grown 13.7% since 2010 (13,755 → 15,642), a +0.92% annualized rate.
The median household income in Trinity County, California is $53,498, with mean (average) household income of $80,934 and per-capita income of $32,271. 6.9% of residents live below the federal poverty level.
In Trinity County, the largest racial and ethnic groups are White (80.5%), Hispanic or Latino (5.6%), Black or African American (0.9%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Trinity County, California is 54.8 years. Residents are 51.1% female and 48.9% male.
The median home value in Trinity County is $329,000 and median monthly rent is $922. 73.0% of occupied housing units are owner-occupied. The county has 8,122 total housing units, 33.8% of which are vacant.
The largest employment sector in Trinity County, California is education, health care, and social assistance, employing 19.8% of workers. The unemployment rate is 2.3%.
Los Angeles is among the largest cities associated with Trinity County, California, with a population of 3,857,897.
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Statewide data for California
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.