Auto · County · Idaho
Auto repair shops in Ada County, ID
How Ada County, ID compares with other counties and the U.S. for auto repair shops: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 79 out of 100: High
Ranked #136 of 2,378 scored counties
#5 of 30 scored counties in Idaho
- Listings
- 383
- 110 chain locations (29%)
- Official establishments
- 197
- 0.0% since 2019
- Household spending a year
- $231.5M
- On vehicle maintenance and repairs · $1,143 a household
- Spending per listing
- $604K
- 36% above the U.S.
- Listings per 10k households
- 18.9
- 12% below the U.S.
- Population, 2025
- 546,141
- +9.6% since 2020
See the auto repair shops around any address in Ada 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 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
For auto repair shops, Ada County has a Groundwork market score of 79 (high): #136 of 2,378 scored counties and #5 of 30 scored counties in Idaho. That puts it in the top 10% of counties for auto repair shops.
Households in Ada County spend about $231.5M a year on vehicle maintenance and repairs, or $1,143 per household, 19% above the U.S. average. Spread across 383 auto repair shops, that is $604K per shop, 36% above the U.S. figure of $445K. The spending figure covers all vehicle maintenance and repairs, not only auto repair shops.
There are 383 auto repair shops on map listings in Ada County as of September 2026. Of those, 110 are chain locations, or 29%, against 16% across the U.S. That comes to 18.9 for every 10,000 households, 12% below the U.S. rate of 21.5.
In 2023, official counts showed 197 businesses with payroll in Ada County classed as mechanical, body and glass repair, unchanged from 2019. That is one for every 1,028 households, against one for every 955 across the U.S. Since fiscal 2022, 19 SBA-backed loans worth $13.6M have gone to businesses classed as mechanical, body and glass repair in Ada County. Between 2020 and 2025, the population of Ada County grew 9.6%, faster than the U.S. (+3.1%).
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 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 | Ada County | Idaho | U.S. |
|---|---|---|---|
| Listings per 10k households | 18.9 | 24.1 | 21.5 |
| Spending per listing | $604K | $497K | $445K |
| Households per official establishment | 1,028 | 758 | 955 |
| Official establishment growth, 2019–2023 | 0.0% | +8.3% | +2.1% |
| 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 | 79 | 68 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 197 → 1970.0% over the period
- Employees, 2023
- 1,035
- Annual payroll, 2023
- $54.2M
- One-person businesses, 2023
- 294Businesses with no payroll
- Map listings, September 2026
- 383110 chain locations
- Listings at the U.S. rate for this spending
- 521The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 19
- Amount
- $13.6M
SBA-backed loans to businesses classed as mechanical, body and glass repair 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 shops 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 shops across Idaho
Every Idaho market ranked →The highest-scoring counties in Idaho for auto repair shops, 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 | 87 | 7 | 16.7 | $685K | +9.7% | #35 of 2,378 |
| 2Shoshone County, ID | 86 | 9 | 15.6 | $692K | +7.1% | #44 of 2,378 |
| 3Latah County, ID | 81 | 23 | 14.1 | $770K | +5.6% | #98 of 2,378 |
| 4Elmore County, ID | 81 | 19 | 17.2 | $658K | +2.8% | #104 of 2,378 |
| 5Ada County, ID | 79 | 383 | 18.9 | $604K | +9.6% | #136 of 2,378 |
| 6Teton County, ID | 75 | 9 | 19.2 | $676K | +12.9% | #207 of 2,378 |
| 7Jefferson County, ID | 75 | 25 | 24.5 | $600K | +13.6% | #215 of 2,378 |
| 8Owyhee County, ID | 74 | 11 | 25.4 | $499K | +5.6% | #245 of 2,378 |
| 9Canyon County, ID | 73 | 189 | 22.0 | $570K | +18.1% | #266 of 2,378 |
| 10Benewah County, ID | 71 | 8 | 19.6 | $613K | +9.7% | #308 of 2,378 |
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
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 Ada County, ID?
As of September 2026, map listings count 383 auto repair shops in Ada County. 110 of them (29%) are chain locations. The listings count general, specialty, body and glass repair shops. Official counts show 197 businesses with payroll classed as mechanical, body and glass repair in 2023, unchanged from 2019. Another 294 one-person businesses have no payroll, by official counts.
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 383 auto repair shops on map listings, it comes to $604K 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 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 shops?
Ada County has 18.9 auto repair shops per 10,000 households, 12% below the U.S. rate of 21.5. Spending per shop is $604K, 36% above the U.S. figure of $445K. At the U.S. ratio of auto repair shops to household spending, Ada County would have about 521, against 383 on map listings. There is one business with payroll in the industry for every 1,028 households, against one for every 955 across the U.S. The official count held level from 2019 to 2023, against +2.1% 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 79 for auto repair shops (high), #136 of 2,378 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 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 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.