Groundwork

Auto · County · Iowa

Auto repair shops in Clayton County, IA

The auto repair shops in Clayton County, IA, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 42 out of 100: Lower middle

Ranked #1,562 of 2,378 scored counties
#41 of 72 scored counties in Iowa

Listings
23
4 chain locations (17%)
Official establishments
8
Businesses with payroll, 2023
Household spending a year
$8.6M
On vehicle maintenance and repairs · $1,140 a household
Spending per listing
$372K
16% below the U.S.
Listings per 10k households
30.6
42% above the U.S.
Population, 2025
16,845
−1.1% since 2020

See the auto repair shops around any address in Clayton 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 Clayton County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey 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 23 auto repair shops in Clayton County. Chain locations make up 17% of them, against 16% across the U.S. That is 30.6 per 10,000 households, 42% above the U.S. rate of 21.5.

At $1,140 per household (19% above the U.S. average), households in Clayton County spend about $8.6M a year on vehicle maintenance and repairs. That is about $372K of household spending for each shop on map listings, 16% 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 Clayton County was 8 in 2023. That is one for every 939 households, against one for every 955 across the U.S. Official counts list 24 one-person businesses without payroll.

Population estimates show Clayton County declined 1.1% from 2020 to 2025, against +3.1% for the U.S. The Groundwork market score for auto repair shops in Clayton County is 42 (lower middle), #1,562 of 2,378 scored counties and #41 of 72 scored counties in Iowa.

How Clayton 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 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.

Auto repair shops in Clayton County, IA compared with Iowa and the U.S.
MeasureClayton CountyIowaU.S.
Listings per 10k households30.624.121.5
Spending per listing$372K$470K$445K
Households per official establishment939766955
Official establishment growth, 2019–2023n/a−1.3%+2.1%
Population growth, 2020–2025−1.1%+1.5%+3.1%
Spending per household on vehicle maintenance and repairs$1,140$1,134$958
Median household income$67,242$75,059$80,734
Groundwork market score4246

Official counts and lending

Businesses

Official establishments, 2019 to 2023
11 → 8
Employees, 2023
34
Annual payroll, 2023
$1.2M
One-person businesses, 2023
24Businesses with no payroll
Map listings, September 2026
234 chain locations
Listings at the U.S. rate for this spending
19The 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 Clayton 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 Clayton County

Population, 2025 estimate
16,845−1.1% since 2020
Households
7,509
Median age
46.9
Homes lived in by their owners
78%
Vehicles per household
2.0
Land area
779 sq. mi.
People per square mile
22
Median household income
$67,242+26.5% vs. 2015–2019, before inflation
Average household income
$86,441
Median home value
$168,500
Jobs located here
6,129
Daytime population
14,966Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Clayton 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 Clayton County. Signed out, you see a blurred preview; on an account, each report is one action.

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Auto repair shops across Iowa

Every Iowa market ranked →

The highest-scoring counties in Iowa for auto repair shops, numbered among those based in Iowa, with Clayton County marked.

Top counties in Iowa

Counties in Iowa ranked for auto repair shops by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Dallas County, IA955312.5$964K+17.8%#5 of 2,378
2Tama County, IA781116.4$738K−1.5%#150 of 2,378
3Johnson County, IA7510015.8$647K+4.6%#211 of 2,378
4Buchanan County, IA721821.8$577K+1.3%#290 of 2,378
5Marion County, IA712821.0$603K+2.3%#309 of 2,378
6Polk County, IA7040419.7$549K+4.8%#347 of 2,378
7Buena Vista County, IA691519.9$597K−1.7%#372 of 2,378
8Grundy County, IA691325.4$499K+0.2%#389 of 2,378
9Bremer County, IA681919.6$626K+1.1%#412 of 2,378
10Story County, IA667820.0$537K+2.7%#495 of 2,378
41Clayton County, IA422330.6$372K−1.1%#1,562 of 2,378

Other business types in Clayton County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many auto repair shops are in Clayton County, IA?

Clayton County has 23 auto repair shops on map listings as of September 2026. 4 of them (17%) are chain locations. The listings count general, specialty, body and glass repair shops. Official counts show 8 businesses with payroll classed as mechanical, body and glass repair in 2023. Official counts also show 24 one-person businesses without payroll.

How much do households in Clayton County, IA spend on vehicle maintenance and repairs?

About $8.6M a year, or $1,140 per household. That is 19% above the U.S. average (an index of 119, where 100 is the U.S. average). Spread across the 23 auto repair shops on map listings, it comes to $372K per shop. The spending figure covers all vehicle maintenance and repairs, not only auto repair shops. It is estimated from the incomes of the 7,509 households in Clayton County and national spending patterns by income.

How does Clayton County, IA compare with the U.S. for auto repair shops?

Clayton County has 30.6 auto repair shops per 10,000 households, 42% above the U.S. rate of 21.5. Spending per shop is $372K, 16% below the U.S. figure of $445K. At the national ratio of auto repair shops to household spending, Clayton County would have about 19, against 23 on map listings. There is one business with payroll in the industry for every 939 households, against one for every 955 across the U.S.

How fast is Clayton County, IA growing?

Population estimates put Clayton County at 16,845 people in 2025, down 1.1% since 2020, against +3.1% for the U.S. It has 7,509 households. The median household income in Clayton County is $67,242 a year, 17% below the U.S. median of $80,734. That rose 26.5% 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. Clayton County scores 42 for auto repair shops (lower middle), #1,562 of 2,378 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Clayton 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 Clayton County

Screening a site or an acquisition in Clayton 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 Clayton 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.