Auto · County · Illinois
Collision repair and body shops in Williamson County, IL
The collision repair and body shops in Williamson County, IL, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 52 out of 100: Upper middle
Ranked #628 of 1,327 scored counties
#14 of 49 scored counties in Illinois
- Listings
- 12
- 1 chain location (8%)
- Official establishments
- 5
- Businesses with payroll, 2023
- Household spending a year
- $29.6M
- On vehicle maintenance and repairs · $1,021 a household
- Spending per listing
- $2.5M
- 20% below the U.S.
- Listings per 10k households
- 4.1
- 32% above the U.S.
- Population, 2025
- 67,225
- +0.2% since 2020
See the collision repair and body shops around any address in Williamson County
The site report maps the collision repair and body shops 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
As of September 2026, map listings count 12 collision repair and body shops in Williamson County. One of them (8%) is a chain location, against 14% across the U.S. That comes to 4.1 for every 10,000 households, 32% above the U.S. rate of 3.1.
Household spending on vehicle maintenance and repairs in Williamson County comes to about $29.6M a year: $1,021 per household, 7% above the U.S. average. That works out to $2.5M per shop, 20% below the U.S. figure of $3.1M. That spending covers all vehicle maintenance and repairs, which collision repair and body shops share with other businesses in the trade.
The official count of businesses with payroll classed as automotive body, paint and interior repair in Williamson County was 5 in 2023. That is one for every 5,797 households, against one for every 3,689 across the U.S.
Between 2020 and 2025, the population of Williamson County grew 0.2%, slower than the U.S. (+3.1%). For collision repair and body shops, Williamson County has a Groundwork market score of 52 (upper middle): #628 of 1,327 scored counties and #14 of 49 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 vehicle maintenance and repairs by the collision repair and body shops 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 | 4.1 | 3.2 | 3.1 |
| Spending per listing | $2.5M | $3M | $3.1M |
| Households per official establishment | 5,797 | 3,283 | 3,689 |
| Official establishment growth, 2019–2023 | n/a | −5.8% | −0.8% |
| Population growth, 2020–2025 | +0.2% | −0.6% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,021 | $975 | $958 |
| Median household income | $65,604 | $83,390 | $80,734 |
| Groundwork market score | 52 | 33 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 7 → 5
- Employees, 2023
- 14
- Annual payroll, 2023
- $520K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 121 chain location
- Listings at the U.S. rate for this spending
- 10The 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 automotive body, paint and interior repair 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 collision repair and body shops 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 cardCollision repair and body shops across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for collision repair and body shops, 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 |
|---|---|---|---|---|---|---|
| 1Kendall County, IL | 83 | 8 | 1.8 | $7.3M | +9.9% | #39 of 1,327 |
| 2Boone County, IL | 76 | 5 | 2.6 | $4.7M | +0.4% | #115 of 1,327 |
| 3McLean County, IL | 64 | 18 | 2.6 | $4M | +0.1% | #331 of 1,327 |
| 4Kane County, IL | 64 | 58 | 3.1 | $3.9M | +1.8% | #334 of 1,327 |
| 5Grundy County, IL | 63 | 6 | 2.9 | $4.2M | +2.9% | #362 of 1,327 |
| 6DeKalb County, IL | 60 | 12 | 3.0 | $3.4M | +1.5% | #433 of 1,327 |
| 7Lake County, IL | 59 | 89 | 3.4 | $3.5M | +0.8% | #451 of 1,327 |
| 8Champaign County, IL | 57 | 20 | 2.3 | $3.8M | +1.8% | #500 of 1,327 |
| 9Rock Island County, IL | 57 | 17 | 2.8 | $3.5M | −1.7% | #504 of 1,327 |
| 10McHenry County, IL | 55 | 46 | 3.9 | $3.2M | +2.5% | #545 of 1,327 |
| 14Williamson County, IL | 52 | 12 | 4.1 | $2.5M | +0.2% | #628 of 1,327 |
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
- Auto repair and car care52
- Auto repair shops57
- Collision repair and body shops52
- Car washes and detailing31
- Tire shops60
- Oil change and quick lube
- Gas stations53
- Insurance agencies16
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many collision repair and body shops are in Williamson County, IL?
Williamson County has 12 collision repair and body shops on map listings as of September 2026. One of them (8%) is a chain location. The listings count collision repair and auto body shops. Official counts show 5 businesses with payroll classed as automotive body, paint and interior repair in 2023.
How much do households in Williamson County, IL spend on vehicle maintenance and repairs?
About $29.6M a year, or $1,021 per household. That is 7% above the U.S. average (an index of 107, where 100 is the U.S. average). Spread across the 12 collision repair and body shops on map listings, it comes to $2.5M per shop. The spending figure covers all vehicle maintenance and repairs, not only collision repair and body shops. 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 collision repair and body shops?
Williamson County has 4.1 collision repair and body shops per 10,000 households, 32% above the U.S. rate of 3.1. Spending per shop is $2.5M, 20% below the U.S. figure of $3.1M. At the national ratio of collision repair and body shops to household spending, Williamson County would have about 10, against 12 on map listings. There is one business with payroll in the industry for every 5,797 households, against one for every 3,689 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 52 for collision repair and body shops (upper middle), #628 of 1,327 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 collision repair and body shops 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 collision repair and body shops · 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.