BizyFi Apply

Market insights · California

Trinity County, CA: growth, migration and housing

Trinity County has 15,720 residents, down 2.4% since 2020 (+0.1% in the last year). In 2022–2023, 232 households moved in and 236 moved out (-4 net), bringing in a net $1.3M of income. Median household income is $53,002, the median home $325,800 and median rent $1,073 a month.

Population (2025)15,720
5-year growth-2.4%
1-year growth+0.1%
Net households moving in-4
Per 1,000 residents-0.3
Net income moving in+$1.3M
Median household income$53,002
Median home value$325,800
Median rent$1,073/mo
Rent as share of income24%

In California: 38th of 58 counties for 5-year population growth · 12th of 58 counties for net in-migration (per resident) · 58th of 58 counties for median household income · 52nd of 58 counties for median home value.

Where new residents came from

Top counties by households (tax returns) moving to Trinity County, 2022–2023 (IRS).

FromHouseholds (tax returns)Their income (AGI)
Shasta County, CA42$2.6M
Humboldt County, CA38$1.7M

Where leavers went

Top counties by households leaving Trinity County, 2022–2023 (IRS).

ToHouseholds (tax returns)Their income (AGI)
Shasta County, CA69$3.2M
Humboldt County, CA37$1.8M

BizyFi in Trinity County

No companies in the BizyFi directory are based here yet. Search them on the company map (company names with a free account), or browse California companies.

← All California counties · National rankings

Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.