Groundwork

Health care · County · California

Medical and dental practices in Trinity County, CA

Competitor counts, household spending and official business counts for medical and dental practices in Trinity County, CA, set against other counties and the U.S.

Groundwork market score · out of 100

Score 69 out of 100: Upper middle

Ranked #358 of 2,394 scored counties
#4 of 55 scored counties in California

Listings
11
0 chain locations (0%)
Official establishments
3
Businesses with payroll, 2023
Household spending a year
$6.2M
On medical and dental services · $1,114 a household
Spending per listing
$566K
3.7 times the U.S.
Listings per 10k households
19.7
77% below the U.S.
Population, 2025
15,720
−2.3% since 2020

See the medical and dental practices around any address in Trinity County

The site report maps the medical and dental practices on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Trinity County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

As of September 2026, map listings count 11 medical and dental practices in Trinity County. None of them are chain locations, against 11% across the U.S. That comes to 19.7 for every 10,000 households, 77% below the U.S. rate of 84.5.

Households in Trinity County spend about $6.2M a year on medical and dental services, or $1,114 per household, 14% below the U.S. average. That works out to $566K per practice, 3.7 times the U.S. figure of $152K.

The official count of businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Trinity County was 3 in 2023. That is one for every 1,862 households, against one for every 270 across the U.S. Another 5 one-person businesses have no payroll, by official counts.

Population estimates show Trinity County declined 2.3% from 2020 to 2025, against +3.1% for the U.S. The Groundwork market score for medical and dental practices in Trinity County is 69 (upper middle), #358 of 2,394 scored counties and #4 of 55 scored counties in California. That puts it in the top quarter of counties.

How Trinity County compares

The same measures for California and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the medical and dental practices counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Doctors, dentists and clinics in Trinity County, CA compared with California and the U.S.
MeasureTrinity CountyCaliforniaU.S.
Listings per 10k households19.788.384.5
Spending per listing$566K$166K$152K
Households per official establishment1,862199270
Official establishment growth, 2019–2023n/a+2.6%+1.5%
Population growth, 2020–2025−2.3%−0.4%+3.1%
Spending per household on medical and dental services$1,114$1,464$1,288
Median household income$53,002$99,122$80,734
Groundwork market score6943

Official counts and lending

Businesses

Official establishments, 2019 to 2023
3 → 3
Employees, 2023
1
Annual payroll, 2023
$39K
One-person businesses, 2023
5Businesses with no payroll
Map listings, September 2026
110 chain locations
Listings at the U.S. rate for this spending
41The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
0
Amount
$0

SBA-backed loans to businesses classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Trinity County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in Trinity County

Population, 2025 estimate
15,720−2.3% since 2020
Households
5,585
Median age
51.9
Homes lived in by their owners
72%
Vehicles per household
1.9
Land area
3,179 sq. mi.
People per square mile
5
Median household income
$53,002+29.8% vs. 2015–2019, before inflation
Average household income
$76,682
Median home value
$325,800
Jobs located here
2,503
Daytime population
15,056Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Trinity County?

These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the medical and dental practices on map listings by name and distance.

Or open the report at the center of Trinity County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Doctors, dentists and clinics across California

Every California market ranked →

The highest-scoring counties in California for medical and dental practices, numbered among those based in California, with Trinity County marked.

Top counties in California

Counties in California ranked for medical and dental practices by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Yuba County, CA856723.4$531K+8.2%#33 of 2,394
2San Benito County, CA808641.8$372K+8.6%#104 of 2,394
3Calaveras County, CA736635.8$367K+2.8%#252 of 2,394
4Trinity County, CA691119.7$566K−2.3%#358 of 2,394
5Colusa County, CA692330.6$407K−0.1%#363 of 2,394
6Madera County, CA6919442.8$296K+7.4%#378 of 2,394
7Mariposa County, CA641621.3$569K−1.2%#557 of 2,394
8Yolo County, CA6441153.6$261K+3.1%#584 of 2,394
9San Joaquin County, CA631,34154.7$253K+5.5%#621 of 2,394
10Lassen County, CA612830.3$383K−13.1%#688 of 2,394

Other business types in Trinity County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many medical and dental practices are in Trinity County, CA?

Trinity County has 11 medical and dental practices on map listings as of September 2026. None of them are chain locations. The listings count every outpatient clinic and practice, and urgent care. Official counts show 3 businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in 2023. Official counts list 5 one-person businesses without payroll.

How much do households in Trinity County, CA spend on medical and dental services?

About $6.2M a year, or $1,114 per household. That is 14% below the U.S. average (an index of 86, where 100 is the U.S. average). Spread across the 11 medical and dental practices on map listings, it comes to $566K per practice. It is estimated from the incomes of the 5,585 households in Trinity County and national spending patterns by income.

How does Trinity County, CA compare with the U.S. for medical and dental practices?

Trinity County has 19.7 medical and dental practices per 10,000 households, 77% below the U.S. rate of 84.5. Spending per practice is $566K, 3.7 times the U.S. figure of $152K. At the national ratio of medical and dental practices to household spending, Trinity County would have about 41, against 11 on map listings. There is one business with payroll in the industry for every 1,862 households, against one for every 270 across the U.S.

How fast is Trinity County, CA growing?

Population estimates put Trinity County at 15,720 people in 2025, down 2.3% since 2020, against +3.1% for the U.S. It has 5,585 households. Median household income in Trinity County is $53,002, 34% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 29.8%, before inflation.

What is the Groundwork market score?

The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. Trinity County scores 69 for medical and dental practices (upper middle), #358 of 2,394 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Trinity County. It maps the medical and dental practices on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.

How the score works · Top markets for medical and dental practices · All 56 business types in Trinity County

Screening a site or an acquisition in Trinity County?

A site report maps the competitors on map listings near an address and sizes the households and spending around it.

The button opens the report at the center of Trinity County. Signed out, you see a blurred preview; on an account, each report is one action.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are estimates for research only. Not investment or real estate advice.