Health care · County · California
Optometrists and eye clinics in Trinity County, CA
How Trinity County, CA compares with other counties and the U.S. for optometrists and eye clinics: competitors, household spending, official counts and growth.
Groundwork market score
Not scored
The score needs at least 5 listings; this market has none.
- Listings
- 0
- None on the map
- Official establishments
- n/a
- Fewer than 3, or not published
- Household spending a year
- $6.2M
- On medical and dental services · $1,114 a household
- Spending per listing
- n/a
- Listings per 10k households
- 0.0
- Population, 2025
- 15,720
- −2.3% since 2020
See the optometrists and eye clinics around any address in Trinity County
The site report maps the optometrists and eye clinics 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 cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
Household spending on medical and dental services in Trinity County comes to about $6.2M a year: $1,114 per household, 14% below the U.S. average. The spending figure covers all medical and dental services, not only optometrists and eye clinics.
Map listings as of September 2026 show no optometrists and eye clinics in Trinity County. At the national ratio of optometrists and eye clinics to household spending, Trinity County would have about 2, against none on map listings.
Official counts don’t publish a figure for offices of optometrists in Trinity County, since they leave out counts under 3.
Between 2020 and 2025, the population of Trinity County declined 2.3%, against +3.1% for the U.S. With no optometrists and eye clinics on map listings, Trinity County isn’t given a market score for them.
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 optometrists and eye clinics counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Trinity County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 0.0 | 4.5 | 4.1 |
| Spending per listing | n/a | $3.3M | $3.1M |
| Households per official establishment | n/a | 4,914 | 5,742 |
| Official establishment growth, 2019–2023 | n/a | −6.0% | +0.2% |
| 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 score | Not scored | 46 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- n/a
- Employees, 2023
- n/a
- Annual payroll, 2023
- n/a
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 0
- Listings at the U.S. rate for this spending
- 2The 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 optometrists 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 optometrists and eye clinics 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 cardOptometrists and eye care across California
Every California market ranked →The highest-scoring counties in California for optometrists and eye clinics, numbered among those based in California, with Trinity County marked.
Top counties in California
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1San Benito County, CA | 93 | 6 | 2.9 | $5.3M | +8.6% | #1 of 1,302 |
| 2San Joaquin County, CA | 87 | 59 | 2.4 | $5.8M | +5.5% | #10 of 1,302 |
| 3Yolo County, CA | 80 | 20 | 2.6 | $5.4M | +3.1% | #52 of 1,302 |
| 4Madera County, CA | 79 | 13 | 2.9 | $4.4M | +7.4% | #68 of 1,302 |
| 5Nevada County, CA | 77 | 10 | 2.3 | $6M | −0.4% | #88 of 1,302 |
| 6Sonoma County, CA | 77 | 56 | 2.9 | $5.1M | −0.4% | #91 of 1,302 |
| 7Calaveras County, CA | 76 | 5 | 2.7 | $4.8M | +2.8% | #111 of 1,302 |
| 8Solano County, CA | 75 | 47 | 3.0 | $4.8M | +0.6% | #119 of 1,302 |
| 9Merced County, CA | 74 | 22 | 2.6 | $4.6M | +5.1% | #132 of 1,302 |
| 10El Dorado County, CA | 71 | 21 | 2.8 | $5.5M | +0.6% | #174 of 1,302 |
| Trinity County, CA | Not scored | 0 | 0.0 | n/a | −2.3% |
Other business types in Trinity County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many optometrists and eye clinics are in Trinity County, CA?
There are no optometrists and eye clinics on map listings in Trinity County as of September 2026. The listings count optometrists and eye clinics. No official count is published for offices of optometrists in Trinity County: counts under 3 are left out.
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). That spending covers all medical and dental services, which optometrists and eye clinics share with other businesses in the trade. 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 optometrists and eye clinics?
Trinity County has no optometrists and eye clinics on map listings. At the U.S. ratio of optometrists and eye clinics to household spending, Trinity County would have about 2, against none on map listings.
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 has no market score for optometrists and eye clinics, having none on map listings.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Trinity County. It maps the optometrists and eye clinics 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 optometrists and eye clinics · 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.