Auto · County · Tennessee
Car washes and detailers in Hamilton County, TN
How Hamilton County, TN 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 55 out of 100: Upper middle
Ranked #613 of 1,451 scored counties
#24 of 47 scored counties in Tennessee
- Listings
- 70
- 21 chain locations (30%)
- Official establishments
- 20
- Businesses with payroll, 2023
- Household spending a year
- $142.9M
- On vehicle maintenance and repairs · $927 a household
- Spending per listing
- $2M
- 19% below the U.S.
- Listings per 10k households
- 4.5
- 18% above the U.S.
- Population, 2025
- 390,833
- +6.2% since 2020
See the car washes and detailers around any address in Hamilton 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 Hamilton 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 70 car washes and detailers in Hamilton County. Of those, 21 are chain locations, or 30%, against 23% across the U.S. Per 10,000 households, that is 4.5, 18% above the U.S. rate of 3.8.
Household spending on vehicle maintenance and repairs in Hamilton County comes to about $142.9M a year: $927 per household, 3% below the U.S. average. That is about $2M of household spending for each location on map listings, 19% below the U.S. figure of $2.5M. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade.
In 2023, official counts showed 20 businesses with payroll in Hamilton County classed as car washes. That is one for every 7,709 households, against one for every 6,523 across the U.S. Since fiscal 2022, 1 SBA-backed loan worth $1.3M has gone to businesses classed as car washes in Hamilton County.
Between 2020 and 2025, the population of Hamilton County grew 6.2%, faster than the U.S. (+3.1%). The Groundwork market score for car washes and detailers in Hamilton County is 55 (upper middle), #613 of 1,451 scored counties and #24 of 47 scored counties in Tennessee.
How Hamilton County compares
The same measures for Tennessee 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 | Hamilton County | Tennessee | U.S. |
|---|---|---|---|
| Listings per 10k households | 4.5 | 3.9 | 3.8 |
| Spending per listing | $2M | $2.4M | $2.5M |
| Households per official establishment | 7,709 | 7,613 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +15.6% | +16.7% |
| Population growth, 2020–2025 | +6.2% | +5.6% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $927 | $944 | $958 |
| Median household income | $76,183 | $69,595 | $80,734 |
| Groundwork market score | 55 | 59 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 18 → 20
- Employees, 2023
- 204
- Annual payroll, 2023
- $5.7M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 7021 chain locations
- Listings at the U.S. rate for this spending
- 57The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $1.3M
SBA-backed loans to businesses classed as car washes in Hamilton 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 Hamilton County
- Population, 2025 estimate
- 390,833+6.2% since 2020
- Households
- 154,181
- Median age
- 40.2
- Homes lived in by their owners
- 64%
- Vehicles per household
- 1.9
- Land area
- 542 sq. mi.
- People per square mile
- 694
- Median household income
- $76,183+38.3% vs. 2015–2019, before inflation
- Average household income
- $108,083
- Median home value
- $312,800
- Jobs located here
- 213,237
- Daytime population
- 429,865Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Hamilton 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 Hamilton 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 Tennessee
Every Tennessee market ranked →The highest-scoring counties in Tennessee for car washes and detailers, numbered among those based in Tennessee, with Hamilton County marked.
Top counties in Tennessee
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Williamson County, TN | 89 | 28 | 3.0 | $3.8M | +9.0% | #13 of 1,451 |
| 2Loudon County, TN | 86 | 8 | 3.3 | $3.3M | +15.6% | #31 of 1,451 |
| 3Roane County, TN | 78 | 7 | 3.1 | $3.4M | +7.0% | #78 of 1,451 |
| 4Bradley County, TN | 76 | 15 | 3.5 | $2.8M | +6.1% | #113 of 1,451 |
| 5Jefferson County, TN | 72 | 8 | 3.7 | $2.8M | +9.3% | #187 of 1,451 |
| 6Cumberland County, TN | 71 | 8 | 2.8 | $3.2M | +8.0% | #202 of 1,451 |
| 7Lawrence County, TN | 71 | 6 | 3.5 | $2.9M | +6.2% | #210 of 1,451 |
| 8Bedford County, TN | 71 | 9 | 4.6 | $2.4M | +9.7% | #218 of 1,451 |
| 9Tipton County, TN | 68 | 5 | 2.2 | $4.7M | +2.0% | #272 of 1,451 |
| 10Dickson County, TN | 67 | 9 | 4.1 | $2.7M | +7.7% | #303 of 1,451 |
| 24Hamilton County, TN | 55 | 70 | 4.5 | $2M | +6.2% | #613 of 1,451 |
Other business types in Hamilton 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 care57
- Auto repair shops58
- Collision repair and body shops80
- Car washes and detailing55
- Tire shops57
- Oil change and quick lube33
- Gas stations65
- Insurance agencies51
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 Hamilton County, TN?
There are 70 car washes and detailers on map listings in Hamilton County as of September 2026. 21 of them (30%) are chain locations. The listings count car washes and detailers. Official counts show 20 businesses with payroll classed as car washes in 2023.
How much do households in Hamilton County, TN spend on vehicle maintenance and repairs?
About $142.9M a year, or $927 per household. That is 3% below the U.S. average (an index of 97, where 100 is the U.S. average). Spread across the 70 car washes and detailers on map listings, it comes to $2M per location. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers. It is estimated from the incomes of the 154,181 households in Hamilton County and national spending patterns by income.
How does Hamilton County, TN compare with the U.S. for car washes and detailers?
Hamilton County has 4.5 car washes and detailers per 10,000 households, 18% above the U.S. rate of 3.8. Spending per location is $2M, 19% below the U.S. figure of $2.5M. At the national ratio of car washes and detailers to household spending, Hamilton County would have about 57, against 70 on map listings. There is one business with payroll in the industry for every 7,709 households, against one for every 6,523 across the U.S.
How fast is Hamilton County, TN growing?
Population estimates put Hamilton County at 390,833 people in 2025, up 6.2% since 2020, faster than the U.S. (+3.1%). It has 154,181 households. Median household income in Hamilton County is $76,183, 6% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 38.3%, 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. Hamilton County scores 55 for car washes and detailers (upper middle), #613 of 1,451 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Hamilton 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 Hamilton County
Screening a site or an acquisition in Hamilton 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 Hamilton 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.