Auto · County · Illinois
Car washes and detailers in Monroe County, IL
How Monroe County, IL compares with other counties and the U.S. for car washes and detailers: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 63 out of 100: Upper middle
Ranked #381 of 1,451 scored counties
#5 of 54 scored counties in Illinois
- Listings
- 5
- 3 chain locations (60%)
- Official establishments
- 3
- Businesses with payroll, 2023
- Household spending a year
- $17.4M
- On vehicle maintenance and repairs · $1,254 a household
- Spending per listing
- $3.5M
- 38% above the U.S.
- Listings per 10k households
- 3.6
- 5% below the U.S.
- Population, 2025
- 34,840
- −0.3% since 2020
See the car washes and detailers around any address in Monroe County
The site report maps the car washes and detailers 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 Monroe 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 vehicle maintenance and repairs in Monroe County comes to about $17.4M a year: $1,254 per household, 31% above the U.S. average. Spread across 5 car washes and detailers, that is $3.5M per location, 38% above the U.S. figure of $2.5M. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers.
Monroe County has 5 car washes and detailers on map listings as of September 2026. Chain locations make up 60% of them, against 23% across the U.S. That is 3.6 per 10,000 households, 5% below the U.S. rate of 3.8.
Official counts show 3 businesses with payroll classed as car washes in Monroe County in 2023. That is one for every 4,617 households, against one for every 6,523 across the U.S.
Between 2020 and 2025, the population of Monroe County declined 0.3%, against +3.1% for the U.S. For car washes and detailers, Monroe County has a Groundwork market score of 63 (upper middle): #381 of 1,451 scored counties and #5 of 54 scored counties in Illinois.
How Monroe 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 car washes and detailers 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 | Monroe County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 3.6 | 3.6 | 3.8 |
| Spending per listing | $3.5M | $2.7M | $2.5M |
| Households per official establishment | 4,617 | 6,432 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +8.6% | +16.7% |
| Population growth, 2020–2025 | −0.3% | −0.6% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,254 | $975 | $958 |
| Median household income | $102,880 | $83,390 | $80,734 |
| Groundwork market score | 63 | 46 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 3
- Employees, 2023
- 20
- Annual payroll, 2023
- $391K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 53 chain locations
- Listings at the U.S. rate for this spending
- 7The 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 car washes in Monroe 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 Monroe County
- Population, 2025 estimate
- 34,840−0.3% since 2020
- Households
- 13,851
- Median age
- 43.5
- Homes lived in by their owners
- 85%
- Vehicles per household
- 2.1
- Land area
- 385 sq. mi.
- People per square mile
- 91
- Median household income
- $102,880+20.0% vs. 2015–2019, before inflation
- Average household income
- $123,402
- Median home value
- $282,100
- Jobs located here
- 9,117
- Daytime population
- 25,946Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Monroe 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 car washes and detailers on map listings by name and distance.
Or open the report at the center of Monroe County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardCar washes and detailing across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for car washes and detailers, numbered among those based in Illinois, with Monroe County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Will County, IL | 79 | 94 | 3.8 | $3.3M | +2.2% | #66 of 1,451 |
| 2Kendall County, IL | 79 | 19 | 4.2 | $3.1M | +9.9% | #68 of 1,451 |
| 3Boone County, IL | 77 | 6 | 3.1 | $3.9M | +0.4% | #91 of 1,451 |
| 4Lake County, IL | 74 | 72 | 2.8 | $4.3M | +0.8% | #134 of 1,451 |
| 5Monroe County, IL | 63 | 5 | 3.6 | $3.5M | −0.3% | #381 of 1,451 |
| 6DuPage County, IL | 63 | 127 | 3.6 | $3.1M | +0.3% | #385 of 1,451 |
| 7Winnebago County, IL | 62 | 40 | 3.4 | $2.8M | −0.4% | #410 of 1,451 |
| 8Macoupin County, IL | 61 | 7 | 4.0 | $2.9M | −2.6% | #436 of 1,451 |
| 9Woodford County, IL | 60 | 6 | 4.1 | $3M | −0.8% | #456 of 1,451 |
| 10McHenry County, IL | 58 | 60 | 5.1 | $2.4M | +2.5% | #521 of 1,451 |
Other business types in Monroe 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 shops57
- Collision repair and body shops37
- Car washes and detailing63
- Tire shops
- Oil change and quick lube
- Gas stations71
- Insurance agencies17
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many car washes and detailers are in Monroe County, IL?
Map listings as of September 2026 show 5 car washes and detailers in Monroe County. 3 of them (60%) are chain locations. The listings count car washes and detailers. Official counts show 3 businesses with payroll classed as car washes in 2023.
How much do households in Monroe County, IL spend on vehicle maintenance and repairs?
About $17.4M a year, or $1,254 per household. That is 31% above the U.S. average (an index of 131, where 100 is the U.S. average). Spread across the 5 car washes and detailers on map listings, it comes to $3.5M per location. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade. It is estimated from the incomes of the 13,851 households in Monroe County and national spending patterns by income.
How does Monroe County, IL compare with the U.S. for car washes and detailers?
Monroe County has 3.6 car washes and detailers per 10,000 households, 5% below the U.S. rate of 3.8. Spending per location is $3.5M, 38% above the U.S. figure of $2.5M. At the U.S. ratio of car washes and detailers to household spending, Monroe County would have about 7, against 5 on map listings. There is one business with payroll in the industry for every 4,617 households, against one for every 6,523 across the U.S.
How fast is Monroe County, IL growing?
Population estimates put Monroe County at 34,840 people in 2025, down 0.3% since 2020, against +3.1% for the U.S. It has 13,851 households. The median household income in Monroe County is $102,880 a year, 27% above the U.S. median of $80,734. That rose 20.0% 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. Monroe County scores 63 for car washes and detailers (upper middle), #381 of 1,451 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Monroe County. It maps the car washes and detailers 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 car washes and detailers · All 56 business types in Monroe County
Screening a site or an acquisition in Monroe 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 Monroe 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.