Auto · County · South Dakota
Auto repair shops in Union County, SD
The auto repair shops in Union County, SD, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 72 out of 100: Upper middle
Ranked #279 of 2,378 scored counties
#2 of 17 scored counties in South Dakota
- Listings
- 9
- 0 chain locations (0%)
- Official establishments
- 11
- Businesses with payroll, 2023
- Household spending a year
- $9.7M
- On vehicle maintenance and repairs · $1,322 a household
- Spending per listing
- $1.1M
- 2.4 times the U.S.
- Listings per 10k households
- 12.3
- 43% below the U.S.
- Population, 2025
- 17,402
- +3.3% since 2020
See the auto repair shops around any address in Union 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 Union 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
At $1,322 per household (38% above the U.S. average), households in Union County spend about $9.7M a year on vehicle maintenance and repairs. That works out to $1.1M per shop, 2.4 times the U.S. figure of $445K. The spending figure covers all vehicle maintenance and repairs, not only auto repair shops.
There are 9 auto repair shops on map listings in Union County as of September 2026. None of them are chain locations, against 16% across the U.S. That is 12.3 per 10,000 households, 43% below the U.S. rate of 21.5.
The official count of businesses with payroll classed as mechanical, body and glass repair in Union County was 11 in 2023. That is one for every 665 households, against one for every 955 across the U.S. Another 11 one-person businesses have no payroll, by official counts.
Population estimates show Union County grew 3.3% from 2020 to 2025, in step with the U.S. (+3.1%). The Groundwork market score for auto repair shops in Union County is 72 (upper middle), #279 of 2,378 scored counties and #2 of 17 scored counties in South Dakota. That puts it in the top quarter of counties.
How Union County compares
The same measures for South Dakota 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 | Union County | South Dakota | U.S. |
|---|---|---|---|
| Listings per 10k households | 12.3 | 25.0 | 21.5 |
| Spending per listing | $1.1M | $476K | $445K |
| Households per official establishment | 665 | 542 | 955 |
| Official establishment growth, 2019–2023 | n/a | +8.4% | +2.1% |
| Population growth, 2020–2025 | +3.3% | +5.3% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,322 | $1,189 | $958 |
| Median household income | $89,636 | $75,081 | $80,734 |
| Groundwork market score | 72 | 55 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 10 → 11
- Employees, 2023
- 138
- Annual payroll, 2023
- $7.8M
- One-person businesses, 2023
- 11Businesses with no payroll
- Map listings, September 2026
- 90 chain locations
- Listings at the U.S. rate for this spending
- 22The 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 Union 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 Union County
- Population, 2025 estimate
- 17,402+3.3% since 2020
- Households
- 7,310
- Median age
- 40.9
- Homes lived in by their owners
- 73%
- Vehicles per household
- 2.2
- Land area
- 462 sq. mi.
- People per square mile
- 37
- Median household income
- $89,636+27.4% vs. 2015–2019, before inflation
- Average household income
- $124,814
- Median home value
- $301,100
- Jobs located here
- 9,648
- Daytime population
- 19,509Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Union 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 Union 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 South Dakota
Every South Dakota market ranked →The highest-scoring counties in South Dakota for auto repair shops, numbered among those based in South Dakota, with Union County marked.
Top counties in South Dakota
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Lincoln County, SD | 73 | 62 | 22.2 | $563K | +17.5% | #269 of 2,378 |
| 2Union County, SD | 72 | 9 | 12.3 | $1.1M | +3.3% | #279 of 2,378 |
| 3Roberts County, SD | 70 | 8 | 22.1 | $565K | −0.1% | #344 of 2,378 |
| 4Lake County, SD | 68 | 13 | 27.6 | $468K | −0.2% | #436 of 2,378 |
| 5Meade County, SD | 64 | 24 | 20.1 | $659K | +2.7% | #549 of 2,378 |
| 6Minnehaha County, SD | 64 | 173 | 20.4 | $534K | +7.6% | #570 of 2,378 |
| 7Brookings County, SD | 61 | 33 | 23.9 | $490K | +9.6% | #693 of 2,378 |
| 8Clay County, SD | 54 | 12 | 21.6 | $493K | +0.2% | #1,002 of 2,378 |
| 9Lawrence County, SD | 54 | 31 | 25.7 | $452K | +14.0% | #1,013 of 2,378 |
| 10Pennington County, SD | 46 | 137 | 29.5 | $392K | +6.6% | #1,403 of 2,378 |
Other business types in Union 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 Union County, SD?
As of September 2026, map listings count 9 auto repair shops in Union County. None of them are chain locations. The listings count general, specialty, body and glass repair shops. Official counts show 11 businesses with payroll classed as mechanical, body and glass repair in 2023. Official counts list 11 one-person businesses without payroll.
How much do households in Union County, SD spend on vehicle maintenance and repairs?
About $9.7M a year, or $1,322 per household. That is 38% above the U.S. average (an index of 138, where 100 is the U.S. average). Spread across the 9 auto repair shops on map listings, it comes to $1.1M per shop. That spending covers all vehicle maintenance and repairs, which auto repair shops share with other businesses in the trade. It is estimated from the incomes of the 7,310 households in Union County and national spending patterns by income.
How does Union County, SD compare with the U.S. for auto repair shops?
Union County has 12.3 auto repair shops per 10,000 households, 43% below the U.S. rate of 21.5. Spending per shop is $1.1M, 2.4 times the U.S. figure of $445K. At the U.S. ratio of auto repair shops to household spending, Union County would have about 22, against 9 on map listings. There is one business with payroll in the industry for every 665 households, against one for every 955 across the U.S.
How fast is Union County, SD growing?
Population estimates put Union County at 17,402 people in 2025, up 3.3% since 2020, in step with the U.S. (+3.1%). It has 7,310 households. Median household income in Union County is $89,636, 11% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 27.4%, 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. Union County scores 72 for auto repair shops (upper middle), #279 of 2,378 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Union 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 Union County
Screening a site or an acquisition in Union 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 Union 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.