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Trinity County, California: commercial real estate data.

Trinity County, California had an estimated 15,642 residents on July 1, 2024, down 2.9 percent since the 2020 census base of 16,116, across 3,179 square miles. County output reached $598.3 m in 2024, 234 establishments operate here, and the SBA record carries 13 7(a) approvals worth $7.6 m since FY2020.

Underlined figures are computed by MMCG Analytics, not published by the agency.

Trinity County

How many people live in Trinity County

  • Population, American Community Survey 2020-202415,860
  • Households5,585
  • Average household size2.84
  • Median household income$53,002
  • Median age54.9
  • Median gross rent$1,073 per month
  • Median owner-occupied home value$325,800
  • Home value to household income6.1 times
  • Annual rent as a share of median income24.3 percent
  • Adults 25 and over with a bachelor degree or higher22.4 percent
  • Adults 25 and over with a graduate degree8.3 percent
  • Adults 25 and over12,461
  • Population under 182,727
  • Share under 1817.2 percent
  • Population 65 and over4,795
  • Share 65 and over30.2 percent
  • Working age population, 18 to 648,338
  • Civilian labor force5,629
  • Unemployment rate8.4 percent
  • Labor force participation, adults 18 and over42.9 percent
  • Rank by population among California counties54th of 58
  • Rank by population among US county-equivalents, Puerto Rico included2106th of 3,222

Trinity County is the 54th largest of 58 California counties by population. A median home costs 6.1 times median household income, which is severely unaffordable by national standards. Residents 65 and over outnumber those under 18, at 30.2 percent against 17.2 percent, which points demand at health care, services and single story product rather than schools.

US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

Trinity County

Is Trinity County's population growing?

  • Population, July 1, 202415,642
  • Census 2020 base population16,116
  • Population change since the 2020 census base-2.94 percent
  • Population change, 2023 to 2024-42
  • Births, 202492
  • Deaths, 2024196
  • Natural change, 2024-104
  • Net domestic migration, 202463
  • Net international migration, 20242
  • Total net migration, 202465
  • Cumulative net domestic migration, 2021 to 2024-95
  • Rank by growth among US county-equivalents2729th of 3,144

The county has lost 2.94 percent of its population since the 2020 census base. Deaths exceeded births in 2024 by more than net migration added, so the population fell even though more people moved in than left.

US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

Trinity County

Where are people moving to Trinity County from?

  • Tax returns filed by households arriving257
  • People arriving, from those returns460
  • Tax returns filed by households leaving312
  • Net household movement-55
  • Adjusted gross income arriving$15.1 m
  • Net adjusted gross income movement$-1.7 m
  • Average income of an arriving household$58,899
  • Average income of a leaving household$54,103
  • Largest single originShasta County (54 households)
  • Largest single destinationShasta County (54 households)
Largest origins of households moving into Trinity County
OriginHouseholdsPeopleAdjusted gross income
Shasta County5497$3.8 m
Humboldt County4492$3.0 m

Households arriving report $4,796 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Shasta County, which is the catchment a retail or multifamily study should look at first.

US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Trinity County

What is the Trinity County economy?

  • County GDP, 2024$598.3 m
  • County GDP, 2023$521.2 m
  • GDP change, 2023 to 202414.8 percent
  • GDP change over five years37.7 percent
  • Rank by GDP among the California areas BEA publishes56th of 58
  • Rank by GDP among the US county areas BEA publishes2278th of 3,127
  • GDP per resident$37,722

Output grew 14.8 percent in the latest year and 37.7 percent over five, which is the trend line a lender will read behind any single year figure.

US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.

Trinity County

Employment by industry in Trinity County

  • Covered employment, annual average2,918
  • Establishments reporting450
  • Average annual pay$56,151
  • Average weekly wage$1,080
  • Health care and social assistance, employment418
  • Health care and social assistance, average annual pay$51,001
  • Retail trade, employment327
  • Retail trade, average annual pay$33,626
  • Accommodation and food services, employment281
  • Accommodation and food services, average annual pay$24,925
  • Manufacturing, employment181
  • Manufacturing, average annual pay$74,651
  • Other services, except public administration, employment158
  • Construction, employment113
Private sector employment and pay by industry, Trinity County
SectorEmploymentEstablishmentsAverage annual pay
Health care and social assistance418200$51,001
Retail trade32732$33,626
Accommodation and food services28141$24,925
Manufacturing1817$74,651
Other services, except public administration15820$45,913
Construction11320$85,646
Professional, scientific and technical services5816$54,423
Arts, entertainment and recreation506$23,487

Health care and social assistance is the largest private sector at 418 jobs, 14.3 percent of covered employment.

US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

Trinity County

How many businesses are in Trinity County?

  • Establishments, all industries234
  • Employment at those establishments1,426
  • Annual payroll$66.5 m
  • Establishments per 1,000 residents14.8

These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.

US Census Bureau, County Business Patterns, 2023.

Trinity County

Building permits in Trinity County

  • Housing units authorized by permit, 202421
  • Declared construction value permitted$3.5 m
  • Single family units authorized21
  • Multifamily units authorized0
  • Multifamily share of units0.0 percent
  • Average declared value per unit$167,889
  • Units authorized per 1,000 households3.8

Single-family homes are 100.0 percent of units authorized, so the pipeline is predominantly single-family.

US Census Bureau, Building Permits Survey, 2024 annual.

Trinity County

SBA loans in Trinity County (7(a) and 504)

  • 7(a) approvals recorded13
  • 7(a) gross approval dollars$7.6 m
  • Average 7(a) approval$583,492
  • Median 7(a) approval$250,000
  • Largest single approval$1,755,000
  • Jobs reported supported, 7(a)71
  • Jobs per approval5.5
  • Distinct 7(a) lenders active10
  • Distinct industries receiving approvals9
  • Median 7(a) term240 months
  • Share of loans on real estate terms, 240 months or longer53.8 percent
  • Loans on real estate terms7
  • Loans on working capital terms, 120 months or shorter5
  • Franchise loans0
  • Franchise share of approvals0.0 percent
  • Leading industry by approval countRV (Recreational Vehicle) Parks and Campgrounds (3)
  • Most active lenderPlumas Bank (3)
  • 504 approvals recorded3
  • 504 gross approval dollars$587,000
  • Average 504 approval$195,667
  • Median 504 approval$196,000
  • Distinct CDCs active2
  • 504 jobs per approval5.3
  • 504 jobs per million dollars approved27.3
  • Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$8.2 m

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.

Trinity County

SBA loan default and charge-off rates in Trinity County

Do SBA loans in Trinity County get paid back?

  • Loans with a final outcome recorded0
  • Paid in full0
  • Charged off0
  • Status: Exempt from disclosure12
  • Status: Committed, not yet disbursed1

Only 0 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.

Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

Trinity County

SBA lending by place in Trinity County

  • Borrower cities with recorded lending7
  • Weaverville, approvals6
  • Hayfork, approvals2
  • Big Bar, approvals1
  • Trinity Center, approvals1
  • Lewiston, approvals1
  • Junction City, approvals1
SBA 7(a) approvals by borrower city, loans with a project in Trinity County, FY2020 to FY2026
Borrower cityApprovalsGross approval dollars
Weaverville6$3,556,900
Hayfork2$300,000
Big Bar1$1,601,000
Trinity Center1$975,000
Lewiston1$892,500
Junction City1$250,000
Mad River1$10,000

US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.

Trinity County

How large is Trinity County?

  • Land area3,179 sq mi
  • Rank by land area among California counties18th of 58
  • Width, east to west61.7 mi
  • Height, north to south95.4 mi
  • Geographies sharing a boundary5
  • Residents per square mile of land5
  • Establishments per square mile0.07

US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.

Trinity County

Flood risk in Trinity County

  • Participation of the county's own NFIP community Trinity County, unincorporated areasParticipating, community 060401
  • Community Rating System class of the county's own communityClass 9
  • Communities in the county in the NFIP Community Status Book1
  • Of those, participating in the NFIP1
  • NFIP participation rate100.0 percent
  • Best Community Rating System class in the county A lower CRS class is a larger flood insurance premium discount.Class 9
  • Communities carrying a CRS class1
  • Radon levels in Trinity County, EPA zone predicted average indoor radon screening level less than 2 pCi/LZone 3

The county's own community in the status book, unincorporated Trinity County (community 060401), participates in the National Flood Insurance Program and carries Community Rating System class 9, a flood insurance premium discount for policies written there. The EPA places Trinity County in radon zone 3, a predicted average indoor radon screening level less than 2 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. The best Community Rating System class among the county's communities is 9, which carries a flood insurance premium discount for policies written in that community. 100.0 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.

Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Coverage

What this page does not hold.

Traffic counts, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →

Feasibility studies

When a Trinity County site needs a document a lender will accept.

The same data layer behind this page is the one the studies are written from. A study for a Trinity County site starts with the figures you are reading, carrying the same source and period into the credit file.

  • Population, American Community Survey 2020-202415,860
  • Households5,585
  • Average household size2.84
  • Median household income$53,002
  • Median age54.9

How a feasibility study works →

Common questions

Trinity County questions, answered from the record.

How many people live in Trinity County, California?

The Census Bureau estimates 15,642 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 15,860, in 5,585 households, ranking 54th of 58 California counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

Is Trinity County's population growing?

The population has fallen 2.94 percent since the 2020 census base of 16,116, to 15,642 on July 1, 2024. In 2024 there were 92 births against 196 deaths, with net migration of 65. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.

What is the median household income in Trinity County?

$53,002. The median owner-occupied home is valued at $325,800, which is 6.1 times income, and median gross rent is $1,073 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.

How many businesses are in Trinity County?

234 establishments, employing 1,426 people with an annual payroll of $66.5 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.

What is employment by industry in Trinity County?

Health care and social assistance is the largest private sector at 418 jobs, 14.3 percent of covered employment. Covered employment averages 2,918 jobs at an average annual pay of $56,151, or $1,080 a week. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.

How much SBA lending happens in Trinity County?

13 7(a) approvals totaling $7.6 m since FY2020, across 10 lenders, with a median approval of $250,000, plus 3 504 approvals worth $587,000 since FY2010. These are approvals recorded in the release, not loans disbursed.

How many building permits were issued in Trinity County?

21 housing units were authorized by permit in 2024, with a declared construction value of $3.5 m. Multifamily was 0.0 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.

What is the radon zone for Trinity County?

Zone 3, a predicted average indoor radon screening level less than 2 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.

Where do people moving to Trinity County come from?

The largest single origin is Shasta County, with 54 households. Arriving households report an average income of $58,899 against $54,103 for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.

Are traffic counts available for Trinity County on this page?

No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.

Is zoning published for Trinity County?

No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.

Trinity County

Cities and places in Trinity.

14 Census places lie wholly or partly in Trinity County. All 14 carry enough published place level data for a page of their own and are linked.

Census places in Trinity County, by population, with SBA 7(a) approvals to borrowers in each place for projects in Trinity County
PlaceTypePopulationSBA 7(a) approvals, projects in this countyLies in
WeavervilleCDP4,0186Wholly in this county
HayforkCDP2,5372Wholly in this county
LewistonCDP2,0201Wholly in this county
Junction CityCDP1,1901Wholly in this county
Douglas CityCDP1,060None recordedWholly in this county
SalyerCDP487None recordedWholly in this county
RuthCDP480None recordedWholly in this county
Trinity CenterCDP4141Wholly in this county
Burnt RanchCDP318None recordedWholly in this county
Coffee CreekCDP280None recordedWholly in this county
Mad RiverCDP2721Wholly in this county
Post MountainCDP233None recordedWholly in this county
Trinity VillageCDP209None recordedWholly in this county
HyampomCDP102None recordedWholly in this county

A further 1 of the county's 13 SBA 7(a) approvals are to borrowers in cities that match no Census place in Trinity County, the largest being Big Bar (1). Those are postal cities, unincorporated areas and cities outside the county, so no place row claims them; they are counted in the county total above.