Fitness and classes · County · Illinois
Gyms and studios in Williamson County, IL
Competitor counts, household spending and official business counts for gyms and studios in Williamson County, IL, set against other counties and the U.S.
Groundwork market score · out of 100
Score 53 out of 100: Upper middle
Ranked #890 of 2,088 scored counties
#31 of 81 scored counties in Illinois
- Listings
- 30
- 6 chain locations (20%)
- Official establishments
- 15
- Businesses with payroll, 2023
- Household spending a year
- $22.7M
- On memberships, classes and admissions · $784 a household
- Spending per listing
- $758K
- 14% above the U.S.
- Listings per 10k households
- 10.4
- 30% below the U.S.
- Population, 2025
- 67,225
- +0.2% since 2020
See the gyms and studios around any address in Williamson County
The site report maps the gyms and studios 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 Williamson 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 memberships, classes and admissions in Williamson County comes to about $22.7M a year: $784 per household, 20% below the U.S. average. That is about $758K of household spending for each location on map listings, 14% above the U.S. figure of $662K.
Williamson County has 30 gyms and studios on map listings as of September 2026. Of those, 6 are chain locations, or 20%, against 20% across the U.S. That comes to 10.4 for every 10,000 households, 30% below the U.S. rate of 14.9.
In 2023, official counts showed 15 businesses with payroll in Williamson County classed as fitness centers and recreation instruction. That is one for every 1,932 households, against one for every 1,641 across the U.S.
Population estimates put the population change in Williamson County from 2020 to 2025 at +0.2%, slower than the U.S. (+3.1%). Williamson County scores 53 (upper middle) on the Groundwork market score for gyms and studios, ranking #890 of 2,088 scored counties and #31 of 81 scored counties in Illinois.
How Williamson County compares
The same measures for Illinois and the whole U.S. Spending per listing divides a year of household spending on all memberships, classes and admissions by the gyms and studios 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 | Williamson County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 10.4 | 14.6 | 14.9 |
| Spending per listing | $758K | $720K | $662K |
| Households per official establishment | 1,932 | 1,668 | 1,641 |
| Official establishment growth, 2019–2023 | n/a | +3.0% | +8.2% |
| Population growth, 2020–2025 | +0.2% | −0.6% | +3.1% |
| Spending per household on memberships, classes and admissions | $784 | $1,054 | $983 |
| Median household income | $65,604 | $83,390 | $80,734 |
| Groundwork market score | 53 | 51 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 15 → 15
- Employees, 2023
- 119
- Annual payroll, 2023
- $1.5M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 306 chain locations
- Listings at the U.S. rate for this spending
- 34The 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 fitness centers and recreation instruction in Williamson 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 Williamson County
- Population, 2025 estimate
- 67,225+0.2% since 2020
- Households
- 28,983
- Median age
- 42.8
- Homes lived in by their owners
- 71%
- Vehicles per household
- 1.8
- Land area
- 420 sq. mi.
- People per square mile
- 159
- Median household income
- $65,604+29.3% vs. 2015–2019, before inflation
- Average household income
- $85,846
- Median home value
- $156,400
- Jobs located here
- 28,604
- Daytime population
- 68,042Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Williamson 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 gyms and studios on map listings by name and distance.
Or open the report at the center of Williamson County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardGyms, studios and classes across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for gyms and studios, numbered among those based in Illinois, with Williamson County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Boone County, IL | 77 | 17 | 8.7 | $1.1M | +0.4% | #102 of 2,088 |
| 2Piatt County, IL | 69 | 9 | 13.0 | $800K | +0.6% | #285 of 2,088 |
| 3Jersey County, IL | 68 | 5 | 6.3 | $1.5M | −1.5% | #294 of 2,088 |
| 4Mercer County, IL | 66 | 5 | 7.6 | $1.1M | −2.6% | #362 of 2,088 |
| 5Kendall County, IL | 66 | 72 | 15.9 | $792K | +9.9% | #381 of 2,088 |
| 6Douglas County, IL | 64 | 8 | 10.3 | $821K | +0.5% | #447 of 2,088 |
| 7Woodford County, IL | 63 | 21 | 14.3 | $755K | −0.8% | #490 of 2,088 |
| 8Will County, IL | 61 | 388 | 15.9 | $803K | +2.2% | #554 of 2,088 |
| 9Bond County, IL | 61 | 6 | 9.8 | $802K | +0.6% | #555 of 2,088 |
| 10Ogle County, IL | 61 | 24 | 11.5 | $787K | −0.7% | #556 of 2,088 |
| 31Williamson County, IL | 53 | 30 | 10.4 | $758K | +0.2% | #890 of 2,088 |
Other business types in Williamson 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
- Gyms, studios and classes53
- Gyms54
- Yoga, Pilates and fitness studios
- Martial arts and dance studios55
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many gyms and studios are in Williamson County, IL?
Map listings as of September 2026 show 30 gyms and studios in Williamson County. 6 of them (20%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. Official counts show 15 businesses with payroll classed as fitness centers and recreation instruction in 2023.
How much do households in Williamson County, IL spend on memberships, classes and admissions?
About $22.7M a year, or $784 per household. That is 20% below the U.S. average (an index of 80, where 100 is the U.S. average). Spread across the 30 gyms and studios on map listings, it comes to $758K per location. It is estimated from the incomes of the 28,983 households in Williamson County and national spending patterns by income.
How does Williamson County, IL compare with the U.S. for gyms and studios?
Williamson County has 10.4 gyms and studios per 10,000 households, 30% below the U.S. rate of 14.9. Spending per location is $758K, 14% above the U.S. figure of $662K. At the U.S. ratio of gyms and studios to household spending, Williamson County would have about 34, against 30 on map listings. There is one business with payroll in the industry for every 1,932 households, against one for every 1,641 across the U.S.
How fast is Williamson County, IL growing?
Population estimates put Williamson County at 67,225 people in 2025, up 0.2% since 2020, slower than the U.S. (+3.1%). It has 28,983 households. The median household income in Williamson County is $65,604 a year, 19% below the U.S. median of $80,734. That rose 29.3% from the 2015–2019 survey, 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. Williamson County scores 53 for gyms and studios (upper middle), #890 of 2,088 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Williamson County. It maps the gyms and studios 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 gyms and studios · All 56 business types in Williamson County
Screening a site or an acquisition in Williamson 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 Williamson 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.