Auto · County · Tennessee
Auto repair shops in Decatur County, TN
The auto repair shops in Decatur County, TN, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 55 out of 100: Upper middle
Ranked #970 of 2,378 scored counties
#63 of 86 scored counties in Tennessee
- Listings
- 10
- 0 chain locations (0%)
- Official establishments
- 4
- Businesses with payroll, 2023
- Household spending a year
- $4.3M
- On vehicle maintenance and repairs · $949 a household
- Spending per listing
- $434K
- 2% below the U.S.
- Listings per 10k households
- 21.9
- 2% above the U.S.
- Population, 2025
- 11,820
- +3.4% since 2020
See the auto repair shops around any address in Decatur County
The site report maps the auto repair 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 Decatur 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 10 auto repair shops in Decatur County. None of them are chain locations, against 16% across the U.S. That comes to 21.9 for every 10,000 households, 2% above the U.S. rate of 21.5.
Households in Decatur County spend about $4.3M a year on vehicle maintenance and repairs, or $949 per household, in line with the U.S. average. That is about $434K of household spending for each shop on map listings, 2% below the U.S. figure of $445K. That spending covers all vehicle maintenance and repairs, which auto repair shops share with other businesses in the trade.
The official count of businesses with payroll classed as mechanical, body and glass repair in Decatur County was 4 in 2023. That is one for every 1,142 households, against one for every 955 across the U.S. Official counts list 9 one-person businesses without payroll.
Population estimates show Decatur County grew 3.4% from 2020 to 2025, in step with the U.S. (+3.1%). The Groundwork market score for auto repair shops in Decatur County is 55 (upper middle), #970 of 2,378 scored counties and #63 of 86 scored counties in Tennessee.
How Decatur 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 auto repair 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 | Decatur County | Tennessee | U.S. |
|---|---|---|---|
| Listings per 10k households | 21.9 | 20.1 | 21.5 |
| Spending per listing | $434K | $470K | $445K |
| Households per official establishment | 1,142 | 1,252 | 955 |
| Official establishment growth, 2019–2023 | n/a | +4.2% | +2.1% |
| Population growth, 2020–2025 | +3.4% | +5.6% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $949 | $944 | $958 |
| Median household income | $45,375 | $69,595 | $80,734 |
| Groundwork market score | 55 | 67 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 4 → 4
- Employees, 2023
- 36
- Annual payroll, 2023
- $1.7M
- One-person businesses, 2023
- 9Businesses with no payroll
- Map listings, September 2026
- 100 chain locations
- 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 mechanical, body and glass repair in Decatur 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 Decatur County
- Population, 2025 estimate
- 11,820+3.4% since 2020
- Households
- 4,568
- Median age
- 46.8
- Homes lived in by their owners
- 74%
- Vehicles per household
- 2.1
- Land area
- 334 sq. mi.
- People per square mile
- 35
- Median household income
- $45,375+8.0% vs. 2015–2019, before inflation
- Average household income
- $63,847
- Median home value
- $139,600
- Jobs located here
- 3,527
- Daytime population
- 10,690Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Decatur 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 shops on map listings by name and distance.
Or open the report at the center of Decatur County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardAuto repair shops across Tennessee
Every Tennessee market ranked →The highest-scoring counties in Tennessee for auto repair shops, numbered among those based in Tennessee, with Decatur County marked.
Top counties in Tennessee
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Union County, TN | 89 | 10 | 12.6 | $865K | +8.1% | #28 of 2,378 |
| 2Williamson County, TN | 89 | 127 | 13.8 | $829K | +9.0% | #29 of 2,378 |
| 3Loudon County, TN | 85 | 44 | 18.3 | $604K | +15.6% | #52 of 2,378 |
| 4Morgan County, TN | 84 | 7 | 9.7 | $1.1M | +5.3% | #54 of 2,378 |
| 5Bledsoe County, TN | 84 | 5 | 10.3 | $1M | +6.5% | #55 of 2,378 |
| 6Fayette County, TN | 83 | 31 | 18.0 | $608K | +7.7% | #73 of 2,378 |
| 7Jefferson County, TN | 81 | 33 | 15.1 | $669K | +9.3% | #102 of 2,378 |
| 8Cheatham County, TN | 80 | 28 | 17.2 | $660K | +4.1% | #114 of 2,378 |
| 9Franklin County, TN | 80 | 27 | 15.5 | $642K | +6.4% | #116 of 2,378 |
| 10Polk County, TN | 80 | 14 | 18.9 | $592K | +5.9% | #120 of 2,378 |
| 63Decatur County, TN | 55 | 10 | 21.9 | $434K | +3.4% | #970 of 2,378 |
Other business types in Decatur 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
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many auto repair shops are in Decatur County, TN?
Decatur County has 10 auto repair shops on map listings as of September 2026. None of them are chain locations. The listings count general, specialty, body and glass repair shops. Official counts show 4 businesses with payroll classed as mechanical, body and glass repair in 2023. Official counts also show 9 one-person businesses without payroll.
How much do households in Decatur County, TN spend on vehicle maintenance and repairs?
About $4.3M a year, or $949 per household. That is in line with the U.S. average (an index of 99, where 100 is the U.S. average). Spread across the 10 auto repair shops on map listings, it comes to $434K per shop. The spending figure covers all vehicle maintenance and repairs, not only auto repair shops. It is estimated from the incomes of the 4,568 households in Decatur County and national spending patterns by income.
How does Decatur County, TN compare with the U.S. for auto repair shops?
Decatur County has 21.9 auto repair shops per 10,000 households, 2% above the U.S. rate of 21.5. Spending per shop is $434K, 2% below the U.S. figure of $445K. The count on map listings matches the U.S. ratio of auto repair shops to household spending. There is one business with payroll in the industry for every 1,142 households, against one for every 955 across the U.S.
How fast is Decatur County, TN growing?
Population estimates put Decatur County at 11,820 people in 2025, up 3.4% since 2020, in step with the U.S. (+3.1%). It has 4,568 households. The median household income in Decatur County is $45,375 a year, 44% below the U.S. median of $80,734. That rose 8.0% 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. Decatur County scores 55 for auto repair shops (upper middle), #970 of 2,378 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Decatur County. It maps the auto repair 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 auto repair shops · All 56 business types in Decatur County
Screening a site or an acquisition in Decatur 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 Decatur 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.