Auto · County · Idaho
Auto repair and car care businesses in Ada County, ID
The auto repair and car care businesses in Ada County, ID, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 73 out of 100: Upper middle
Ranked #277 of 2,401 scored counties
#7 of 30 scored counties in Idaho
- Listings
- 690
- 233 chain locations (34%)
- Official establishments
- 319
- +2.9% since 2019
- Household spending a year
- $231.5M
- On vehicle maintenance and repairs · $1,143 a household
- Spending per listing
- $335K
- 25% above the U.S.
- Listings per 10k households
- 34.1
- 4% below the U.S.
- Population, 2025
- 546,141
- +9.6% since 2020
See the auto repair and car care businesses around any address in Ada 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 Ada 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 690 auto repair and car care businesses in Ada County. Of those, 233 are chain locations, or 34%, against 24% across the U.S. That comes to 34.1 for every 10,000 households, 4% below the U.S. rate of 35.7.
At $1,143 per household (19% above the U.S. average), households in Ada County spend about $231.5M a year on vehicle maintenance and repairs. That works out to $335K per business, 25% above the U.S. figure of $269K.
Official counts show 319 businesses with payroll classed as automotive repair and maintenance, and tire dealers in Ada County in 2023, up 2.9% from 2019. That is one for every 635 households, against one for every 681 across the U.S. Another 396 one-person businesses have no payroll, by official counts. Since fiscal 2022, 26 SBA-backed loans worth $16.3M have gone to businesses classed as automotive repair and maintenance, and tire dealers in Ada County.
Population estimates show Ada County grew 9.6% from 2020 to 2025, faster than the U.S. (+3.1%). For auto repair and car care businesses, Ada County has a Groundwork market score of 73 (upper middle): #277 of 2,401 scored counties and #7 of 30 scored counties in Idaho. That puts it in the top quarter of counties.
How Ada County compares
The same measures for Idaho 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 | Ada County | Idaho | U.S. |
|---|---|---|---|
| Listings per 10k households | 34.1 | 41.7 | 35.7 |
| Spending per listing | $335K | $287K | $269K |
| Households per official establishment | 635 | 531 | 681 |
| Official establishment growth, 2019–2023 | +2.9% | +7.1% | +4.1% |
| Population growth, 2020–2025 | +9.6% | +9.8% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,143 | $1,196 | $958 |
| Median household income | $91,502 | $77,800 | $80,734 |
| Groundwork market score | 73 | 64 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 310 → 319+2.9% over the period
- Employees, 2023
- 2,228
- Annual payroll, 2023
- $109.8M
- One-person businesses, 2023
- 396Businesses with no payroll
- Map listings, September 2026
- 690233 chain locations
- Listings at the U.S. rate for this spending
- 862The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 26
- Amount
- $16.3M
SBA-backed loans to businesses classed as automotive repair and maintenance, and tire dealers in Ada 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 Ada County
- Population, 2025 estimate
- 546,141+9.6% since 2020
- Households
- 202,543
- Median age
- 39.5
- Homes lived in by their owners
- 71%
- Vehicles per household
- 2.0
- Land area
- 1,052 sq. mi.
- People per square mile
- 493
- Median household income
- $91,502+38.0% vs. 2015–2019, before inflation
- Average household income
- $124,631
- Median home value
- $512,300
- Jobs located here
- 294,737
- Daytime population
- 566,160Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Ada 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 Ada 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 Idaho
Every Idaho market ranked →The highest-scoring counties in Idaho for auto repair and car care businesses, numbered among those based in Idaho, with Ada County marked.
Top counties in Idaho
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Washington County, ID | 85 | 14 | 33.3 | $342K | +9.7% | #58 of 2,401 |
| 2Latah County, ID | 83 | 41 | 25.2 | $432K | +5.6% | #81 of 2,401 |
| 3Owyhee County, ID | 82 | 18 | 41.5 | $305K | +5.6% | #98 of 2,401 |
| 4Shoshone County, ID | 81 | 19 | 33.0 | $328K | +7.1% | #109 of 2,401 |
| 5Payette County, ID | 77 | 37 | 38.2 | $325K | +8.8% | #193 of 2,401 |
| 6Benewah County, ID | 76 | 12 | 29.5 | $409K | +9.7% | #199 of 2,401 |
| 7Ada County, ID | 73 | 690 | 34.1 | $335K | +9.6% | #277 of 2,401 |
| 8Gem County, ID | 72 | 27 | 35.3 | $363K | +13.0% | #297 of 2,401 |
| 9Canyon County, ID | 71 | 331 | 38.5 | $326K | +18.1% | #341 of 2,401 |
| 10Jefferson County, ID | 70 | 46 | 45.1 | $326K | +13.6% | #366 of 2,401 |
Other business types in Ada 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 care73
- Auto repair shops79
- Collision repair and body shops89
- Car washes and detailing61
- Tire shops76
- Oil change and quick lube45
- Gas stations85
- Insurance agencies37
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 Ada County, ID?
There are 690 auto repair and car care businesses on map listings in Ada County as of September 2026. 233 of them (34%) are chain locations. The listings count repair shops, body shops, tire shops, car washes, oil change and parts stores. Official counts show 319 businesses with payroll classed as automotive repair and maintenance, and tire dealers in 2023, up 2.9% from 2019. Official counts list 396 one-person businesses without payroll.
How much do households in Ada County, ID spend on vehicle maintenance and repairs?
About $231.5M a year, or $1,143 per household. That is 19% above the U.S. average (an index of 119, where 100 is the U.S. average). Spread across the 690 auto repair and car care businesses on map listings, it comes to $335K per business. It is estimated from the incomes of the 202,543 households in Ada County and national spending patterns by income.
How does Ada County, ID compare with the U.S. for auto repair and car care businesses?
Ada County has 34.1 auto repair and car care businesses per 10,000 households, 4% below the U.S. rate of 35.7. Spending per business is $335K, 25% above the U.S. figure of $269K. At the national ratio of auto repair and car care businesses to household spending, Ada County would have about 862, against 690 on map listings. There is one business with payroll in the industry for every 635 households, against one for every 681 across the U.S. The official count rose 2.9% from 2019 to 2023, against +4.1% for the U.S.
How fast is Ada County, ID growing?
Population estimates put Ada County at 546,141 people in 2025, up 9.6% since 2020, faster than the U.S. (+3.1%). It has 202,543 households. Median household income in Ada County is $91,502, 13% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 38.0%, 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. Ada County scores 73 for auto repair and car care businesses (upper middle), #277 of 2,401 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Ada 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 Ada County
Screening a site or an acquisition in Ada 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 Ada 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.