Auto · County · Iowa
Auto repair and car care businesses in Hamilton County, IA
The auto repair and car care businesses in Hamilton County, IA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 59 out of 100: Upper middle
Ranked #770 of 2,401 scored counties
#12 of 72 scored counties in Iowa
- Listings
- 23
- 6 chain locations (26%)
- Official establishments
- 12
- Businesses with payroll, 2023
- Household spending a year
- $8M
- On vehicle maintenance and repairs · $1,244 a household
- Spending per listing
- $348K
- 30% above the U.S.
- Listings per 10k households
- 35.7
- In line with the U.S.
- Population, 2025
- 14,944
- −0.5% since 2020
See the auto repair and car care businesses around any address in Hamilton 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 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 23 auto repair and car care businesses in Hamilton County. 6 of them (26%) are chain locations, against 24% across the U.S. Per 10,000 households, that is 35.7, in line with the U.S. rate of 35.7.
Households in Hamilton County spend about $8M a year on vehicle maintenance and repairs, or $1,244 per household, 30% above the U.S. average. That is about $348K of household spending for each business on map listings, 30% above the U.S. figure of $269K.
The official count of businesses with payroll classed as automotive repair and maintenance, and tire dealers in Hamilton County was 12 in 2023. That is one for every 536 households, against one for every 681 across the U.S. Another 20 one-person businesses have no payroll, by official counts.
Between 2020 and 2025, the population of Hamilton County declined 0.5%, against +3.1% for the U.S. For auto repair and car care businesses, Hamilton County has a Groundwork market score of 59 (upper middle): #770 of 2,401 scored counties and #12 of 72 scored counties in Iowa.
How Hamilton County compares
The same measures for Iowa 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 | Hamilton County | Iowa | U.S. |
|---|---|---|---|
| Listings per 10k households | 35.7 | 41.8 | 35.7 |
| Spending per listing | $348K | $271K | $269K |
| Households per official establishment | 536 | 558 | 681 |
| Official establishment growth, 2019–2023 | n/a | +0.9% | +4.1% |
| Population growth, 2020–2025 | −0.5% | +1.5% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,244 | $1,134 | $958 |
| Median household income | $72,432 | $75,059 | $80,734 |
| Groundwork market score | 59 | 42 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 14 → 12
- Employees, 2023
- 51
- Annual payroll, 2023
- $2.3M
- One-person businesses, 2023
- 20Businesses with no payroll
- Map listings, September 2026
- 236 chain locations
- Listings at the U.S. rate for this spending
- 30The 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 repair and maintenance, and tire dealers 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
- 14,944−0.5% since 2020
- Households
- 6,434
- Median age
- 43.1
- Homes lived in by their owners
- 73%
- Vehicles per household
- 2.1
- Land area
- 577 sq. mi.
- People per square mile
- 26
- Median household income
- $72,432+18.9% vs. 2015–2019, before inflation
- Average household income
- $92,073
- Median home value
- $156,400
- Jobs located here
- 5,890
- Daytime population
- 13,997Residents 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 auto repair and car care businesses 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 cardAuto repair and car care across Iowa
Every Iowa market ranked →The highest-scoring counties in Iowa for auto repair and car care businesses, numbered among those based in Iowa, with Hamilton County marked.
Top counties in Iowa
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Dallas County, IA | 93 | 117 | 27.5 | $437K | +17.8% | #9 of 2,401 |
| 2Johnson County, IA | 75 | 175 | 27.6 | $370K | +4.6% | #228 of 2,401 |
| 3Buchanan County, IA | 75 | 33 | 40.0 | $314K | +1.3% | #236 of 2,401 |
| 4Tama County, IA | 74 | 24 | 35.7 | $338K | −1.5% | #254 of 2,401 |
| 5Warren County, IA | 72 | 84 | 40.6 | $310K | +9.0% | #316 of 2,401 |
| 6Polk County, IA | 68 | 707 | 34.4 | $313K | +4.8% | #435 of 2,401 |
| 7Bremer County, IA | 65 | 37 | 38.1 | $321K | +1.1% | #532 of 2,401 |
| 8Harrison County, IA | 64 | 28 | 46.0 | $279K | +0.4% | #594 of 2,401 |
| 9Story County, IA | 63 | 135 | 34.7 | $310K | +2.7% | #625 of 2,401 |
| 10Buena Vista County, IA | 62 | 33 | 43.7 | $272K | −1.7% | #676 of 2,401 |
| 12Hamilton County, IA | 59 | 23 | 35.7 | $348K | −0.5% | #770 of 2,401 |
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
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 Hamilton County, IA?
There are 23 auto repair and car care businesses on map listings in Hamilton County as of September 2026. 6 of them (26%) are chain locations. The listings count repair shops, body shops, tire shops, car washes, oil change and parts stores. Official counts show 12 businesses with payroll classed as automotive repair and maintenance, and tire dealers in 2023. Official counts list 20 one-person businesses without payroll.
How much do households in Hamilton County, IA spend on vehicle maintenance and repairs?
About $8M a year, or $1,244 per household. That is 30% above the U.S. average (an index of 130, where 100 is the U.S. average). Spread across the 23 auto repair and car care businesses on map listings, it comes to $348K per business. It is estimated from the incomes of the 6,434 households in Hamilton County and national spending patterns by income.
How does Hamilton County, IA compare with the U.S. for auto repair and car care businesses?
Hamilton County has 35.7 auto repair and car care businesses per 10,000 households, in line with the U.S. rate of 35.7. Spending per business is $348K, 30% above the U.S. figure of $269K. At the national ratio of auto repair and car care businesses to household spending, Hamilton County would have about 30, against 23 on map listings. There is one business with payroll in the industry for every 536 households, against one for every 681 across the U.S.
How fast is Hamilton County, IA growing?
Population estimates put Hamilton County at 14,944 people in 2025, down 0.5% since 2020, against +3.1% for the U.S. It has 6,434 households. Median household income in Hamilton County is $72,432, 10% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 18.9%, 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 59 for auto repair and car care businesses (upper middle), #770 of 2,401 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 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 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.