Groundwork

Health care · County · Illinois

Optometrists and eye clinics in Brown County, IL

The optometrists and eye clinics in Brown County, IL, the household spending behind them and how the market ranks against other counties.

Groundwork market score

Not scored

Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.

Listings
1
0 chain locations (0%)
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$2.6M
On medical and dental services · $1,280 a household
Spending per listing
$2.6M
Too few listings to compare
Listings per 10k households
4.9
Too few listings to compare
Population, 2025
6,401
+2.7% since 2020

See the optometrists and eye clinics around any address in Brown 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 Brown 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

Map listings as of September 2026 show 1 optometrist or eye clinic in Brown County. That is 4.9 per 10,000 households.

At $1,280 per household (in line with the U.S. average), households in Brown County spend about $2.6M a year on medical and dental services. That works out to $2.6M per practice. That spending covers all medical and dental services, which optometrists and eye clinics share with other businesses in the trade.

There is no official count of businesses with payroll classed as offices of optometrists in Brown County: counts under 3 aren’t published.

Population estimates show Brown County grew 2.7% from 2020 to 2025, in step with the U.S. (+3.1%). Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.

How Brown County compares

The same measures for Illinois 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.

Optometrists and eye care in Brown County, IL compared with Illinois and the U.S.
MeasureBrown CountyIllinoisU.S.
Listings per 10k households4.94.64.1
Spending per listing$2.6M$3.3M$3.1M
Households per official establishmentn/a5,8025,742
Official establishment growth, 2019–2023n/a+3.1%+0.2%
Population growth, 2020–2025+2.7%−0.6%+3.1%
Spending per household on medical and dental services$1,280$1,517$1,288
Median household income$67,917$83,390$80,734
Groundwork market scoreNot scored53

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
10 chain locations
Listings at the U.S. rate for this spending
1The 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 Brown 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 Brown County

Population, 2025 estimate
6,401+2.7% since 2020
Households
2,041
Median age
42.2
Homes lived in by their owners
72%
Vehicles per household
1.8
Land area
306 sq. mi.
People per square mile
21
Median household income
$67,917
Average household income
$81,732
Median home value
$150,300
Jobs located here
4,933
Daytime population
8,809Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Brown 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 Brown County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Optometrists and eye care across Illinois

Every Illinois market ranked →

The highest-scoring counties in Illinois for optometrists and eye clinics, numbered among those based in Illinois, with Brown County marked.

Top counties in Illinois

Counties in Illinois ranked for optometrists and eye clinics by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Kendall County, IL81112.4$7M+9.9%#41 of 1,302
2McLean County, IL81202.8$5.2M+0.1%#44 of 1,302
3Champaign County, IL79242.8$4.8M+1.8%#64 of 1,302
4Sangamon County, IL78232.7$5.3M−1.0%#76 of 1,302
5Tazewell County, IL75183.3$4.3M−0.9%#123 of 1,302
6Rock Island County, IL72152.4$5.5M−1.7%#156 of 1,302
7Kane County, IL72925.0$3.3M+1.8%#172 of 1,302
8Vermilion County, IL6962.0$6.3M−3.7%#209 of 1,302
9Will County, IL661194.9$3.5M+2.2%#283 of 1,302
10Kankakee County, IL63184.4$3.2M−1.7%#349 of 1,302
Brown County, ILNot scored14.9$2.6M+2.7%

Other business types in Brown County

None has a Groundwork market score here. Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.

Questions

How many optometrists and eye clinics are in Brown County, IL?

There is 1 optometrist or eye clinic on map listings in Brown County as of September 2026. The listings count optometrists and eye clinics. No official count is published for offices of optometrists in Brown County: counts under 3 are left out.

How much do households in Brown County, IL spend on medical and dental services?

About $2.6M a year, or $1,280 per household. That is in line with the U.S. average (an index of 99, where 100 is the U.S. average). Spread across the 1 optometrist or eye clinic on map listings, it comes to $2.6M per practice. The spending figure covers all medical and dental services, not only optometrists and eye clinics. It is estimated from the incomes of the 2,041 households in Brown County and national spending patterns by income.

How does Brown County, IL compare with the U.S. for optometrists and eye clinics?

Brown County has 1 optometrist or eye clinic on map listings, too few for a steady comparison with the U.S. rate. The count on map listings matches the U.S. ratio of optometrists and eye clinics to household spending.

How fast is Brown County, IL growing?

Population estimates put Brown County at 6,401 people in 2025, up 2.7% since 2020, in step with the U.S. (+3.1%). It has 2,041 households. The median household income in Brown County is $67,917 a year, 16% below the U.S. median of $80,734.

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. The score leaves out counties under 10,000 people, where a handful of businesses would swing it.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Brown 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 Brown County

Screening a site or an acquisition in Brown 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 Brown 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.