Auto · County · Wisconsin
Auto repair and car care businesses in Rock County, WI
How Rock County, WI compares with other counties and the U.S. for auto repair and car care businesses: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 59 out of 100: Upper middle
Ranked #797 of 2,401 scored counties
#34 of 67 scored counties in Wisconsin
- Listings
- 254
- 75 chain locations (30%)
- Official establishments
- 95
- +2.2% since 2019
- Household spending a year
- $72.7M
- On vehicle maintenance and repairs · $1,083 a household
- Spending per listing
- $286K
- 7% above the U.S.
- Listings per 10k households
- 37.8
- 6% above the U.S.
- Population, 2025
- 166,472
- +1.7% since 2020
See the auto repair and car care businesses around any address in Rock County
The site report maps the auto repair and car care businesses 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 Rock 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
Map listings as of September 2026 show 254 auto repair and car care businesses in Rock County. Chain locations make up 30% of them, against 24% across the U.S. That comes to 37.8 for every 10,000 households, 6% above the U.S. rate of 35.7.
At $1,083 per household (13% above the U.S. average), households in Rock County spend about $72.7M a year on vehicle maintenance and repairs. That works out to $286K per business, 7% above the U.S. figure of $269K.
Official counts show 95 businesses with payroll classed as automotive repair and maintenance, and tire dealers in Rock County in 2023, up 2.2% from 2019. That is one for every 707 households, against one for every 681 across the U.S. Another 141 one-person businesses have no payroll, by official counts. Since fiscal 2022, 1 SBA-backed loan worth $1.8M has gone to businesses classed as automotive repair and maintenance, and tire dealers in Rock County.
Between 2020 and 2025, the population of Rock County grew 1.7%, slower than the U.S. (+3.1%). Rock County scores 59 (upper middle) on the Groundwork market score for auto repair and car care businesses, ranking #797 of 2,401 scored counties and #34 of 67 scored counties in Wisconsin.
How Rock County compares
The same measures for Wisconsin and the whole U.S. Spending per listing divides a year of household spending on all vehicle maintenance and repairs by the auto repair and car care businesses 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 | Rock County | Wisconsin | U.S. |
|---|---|---|---|
| Listings per 10k households | 37.8 | 34.5 | 35.7 |
| Spending per listing | $286K | $307K | $269K |
| Households per official establishment | 707 | 706 | 681 |
| Official establishment growth, 2019–2023 | +2.2% | +1.2% | +4.1% |
| Population growth, 2020–2025 | +1.7% | +1.3% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,083 | $1,061 | $958 |
| Median household income | $75,673 | $77,485 | $80,734 |
| Groundwork market score | 59 | 66 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 93 → 95+2.2% over the period
- Employees, 2023
- 478
- Annual payroll, 2023
- $22.4M
- One-person businesses, 2023
- 141Businesses with no payroll
- Map listings, September 2026
- 25475 chain locations
- Listings at the U.S. rate for this spending
- 271The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $1.8M
SBA-backed loans to businesses classed as automotive repair and maintenance, and tire dealers in Rock 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 Rock County
- Population, 2025 estimate
- 166,472+1.7% since 2020
- Households
- 67,201
- Median age
- 40.7
- Homes lived in by their owners
- 71%
- Vehicles per household
- 1.9
- Land area
- 718 sq. mi.
- People per square mile
- 229
- Median household income
- $75,673+30.8% vs. 2015–2019, before inflation
- Average household income
- $91,984
- Median home value
- $231,600
- Jobs located here
- 69,632
- Daytime population
- 154,793Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Rock 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 auto repair and car care businesses on map listings by name and distance.
Or open the report at the center of Rock County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardAuto repair and car care across Wisconsin
Every Wisconsin market ranked →The highest-scoring counties in Wisconsin for auto repair and car care businesses, numbered among those based in Wisconsin, with Rock County marked.
Top counties in Wisconsin
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Bayfield County, WI | 89 | 16 | 21.5 | $544K | +3.4% | #24 of 2,401 |
| 2Pierce County, WI | 88 | 46 | 29.0 | $448K | +3.1% | #31 of 2,401 |
| 3Adams County, WI | 83 | 23 | 24.2 | $460K | +5.2% | #78 of 2,401 |
| 4Oconto County, WI | 80 | 55 | 32.7 | $385K | +2.9% | #122 of 2,401 |
| 5Iowa County, WI | 78 | 27 | 26.7 | $443K | +1.0% | #155 of 2,401 |
| 6Door County, WI | 77 | 45 | 30.0 | $380K | +1.6% | #185 of 2,401 |
| 7Dane County, WI | 77 | 663 | 26.4 | $373K | +4.9% | #186 of 2,401 |
| 8Calumet County, WI | 75 | 54 | 25.3 | $470K | +2.9% | #218 of 2,401 |
| 9Portage County, WI | 74 | 87 | 29.3 | $388K | +2.2% | #246 of 2,401 |
| 10Walworth County, WI | 74 | 135 | 31.3 | $379K | +0.8% | #248 of 2,401 |
| 34Rock County, WI | 59 | 254 | 37.8 | $286K | +1.7% | #797 of 2,401 |
Other business types in Rock 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 care59
- Auto repair shops54
- Collision repair and body shops52
- Car washes and detailing75
- Tire shops79
- Oil change and quick lube
- Gas stations56
- Insurance agencies42
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many auto repair and car care businesses are in Rock County, WI?
There are 254 auto repair and car care businesses on map listings in Rock County as of September 2026. 75 of them (30%) are chain locations. The listings count repair shops, body shops, tire shops, car washes, oil change and parts stores. Official counts show 95 businesses with payroll classed as automotive repair and maintenance, and tire dealers in 2023, up 2.2% from 2019. Official counts list 141 one-person businesses without payroll.
How much do households in Rock County, WI spend on vehicle maintenance and repairs?
About $72.7M a year, or $1,083 per household. That is 13% above the U.S. average (an index of 113, where 100 is the U.S. average). Spread across the 254 auto repair and car care businesses on map listings, it comes to $286K per business. It is estimated from the incomes of the 67,201 households in Rock County and national spending patterns by income.
How does Rock County, WI compare with the U.S. for auto repair and car care businesses?
Rock County has 37.8 auto repair and car care businesses per 10,000 households, 6% above the U.S. rate of 35.7. Spending per business is $286K, 7% above the U.S. figure of $269K. At the national ratio of auto repair and car care businesses to household spending, Rock County would have about 271, against 254 on map listings. There is one business with payroll in the industry for every 707 households, against one for every 681 across the U.S. The official count rose 2.2% from 2019 to 2023, against +4.1% for the U.S.
How fast is Rock County, WI growing?
Population estimates put Rock County at 166,472 people in 2025, up 1.7% since 2020, slower than the U.S. (+3.1%). It has 67,201 households. Median household income in Rock County is $75,673, 6% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 30.8%, 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. Rock County scores 59 for auto repair and car care businesses (upper middle), #797 of 2,401 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Rock County. It maps the auto repair and car care businesses 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 auto repair and car care businesses · All 56 business types in Rock County
Screening a site or an acquisition in Rock 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 Rock 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.