Auto · County · Idaho
Car washes and detailers in Cassia County, ID
How Cassia County, ID compares with other counties and the U.S. for car washes and detailers: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 54 out of 100: Upper middle
Ranked #637 of 1,451 scored counties
#9 of 13 scored counties in Idaho
- Listings
- 7
- 2 chain locations (29%)
- Official establishments
- n/a
- Fewer than 3, or not published
- Household spending a year
- $10.7M
- On vehicle maintenance and repairs · $1,262 a household
- Spending per listing
- $1.5M
- 39% below the U.S.
- Listings per 10k households
- 8.2
- 2.2 times the U.S.
- Population, 2025
- 26,397
- +6.6% since 2020
See the car washes and detailers around any address in Cassia County
The site report maps the car washes and detailers 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 Cassia 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 $1,262 per household (32% above the U.S. average), households in Cassia County spend about $10.7M a year on vehicle maintenance and repairs. Spread across 7 car washes and detailers, that is $1.5M per location, 39% below the U.S. figure of $2.5M. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers.
Cassia County has 7 car washes and detailers on map listings as of September 2026. Of those, 2 are chain locations, or 29%, against 23% across the U.S. That is 8.2 per 10,000 households, 2.2 times the U.S. rate of 3.8.
Official counts don’t publish a figure for car washes in Cassia County, since they leave out counts under 3.
Population estimates show Cassia County grew 6.6% from 2020 to 2025, faster than the U.S. (+3.1%). For car washes and detailers, Cassia County has a Groundwork market score of 54 (upper middle): #637 of 1,451 scored counties and #9 of 13 scored counties in Idaho.
How Cassia 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 car washes and detailers 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 | Cassia County | Idaho | U.S. |
|---|---|---|---|
| Listings per 10k households | 8.2 | 4.5 | 3.8 |
| Spending per listing | $1.5M | $2.7M | $2.5M |
| Households per official establishment | n/a | 5,130 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +24.1% | +16.7% |
| Population growth, 2020–2025 | +6.6% | +9.8% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,262 | $1,196 | $958 |
| Median household income | $70,830 | $77,800 | $80,734 |
| Groundwork market score | 54 | 64 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- n/a
- Employees, 2023
- n/a
- Annual payroll, 2023
- n/a
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 72 chain locations
- Listings at the U.S. rate for this spending
- 4The 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 car washes in Cassia 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 Cassia County
- Population, 2025 estimate
- 26,397+6.6% since 2020
- Households
- 8,495
- Median age
- 34.2
- Homes lived in by their owners
- 69%
- Vehicles per household
- 2.4
- Land area
- 2,566 sq. mi.
- People per square mile
- 10
- Median household income
- $70,830+33.8% vs. 2015–2019, before inflation
- Average household income
- $92,485
- Median home value
- $284,600
- Jobs located here
- 12,719
- Daytime population
- 26,894Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Cassia 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 car washes and detailers on map listings by name and distance.
Or open the report at the center of Cassia County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardCar washes and detailing across Idaho
Every Idaho market ranked →The highest-scoring counties in Idaho for car washes and detailers, numbered among those based in Idaho, with Cassia County marked.
Top counties in Idaho
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Bingham County, ID | 93 | 5 | 3.1 | $4.3M | +6.4% | #4 of 1,451 |
| 2Bonner County, ID | 79 | 8 | 3.9 | $2.9M | +14.8% | #69 of 1,451 |
| 3Canyon County, ID | 75 | 34 | 4.0 | $3.2M | +18.1% | #126 of 1,451 |
| 4Nez Perce County, ID | 70 | 6 | 3.5 | $3.4M | +1.8% | #233 of 1,451 |
| 5Twin Falls County, ID | 70 | 15 | 4.3 | $2.6M | +7.9% | #243 of 1,451 |
| 6Ada County, ID | 61 | 98 | 4.8 | $2.4M | +9.6% | #445 of 1,451 |
| 7Kootenai County, ID | 59 | 34 | 4.8 | $2.5M | +11.0% | #491 of 1,451 |
| 8Jefferson County, ID | 57 | 7 | 6.9 | $2.1M | +13.6% | #550 of 1,451 |
| 9Cassia County, ID | 54 | 7 | 8.2 | $1.5M | +6.6% | #637 of 1,451 |
| 10Bannock County, ID | 51 | 17 | 5.1 | $2.2M | +4.9% | #706 of 1,451 |
Other business types in Cassia 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 care41
- Auto repair shops41
- Collision repair and body shops
- Car washes and detailing54
- Tire shops54
- Oil change and quick lube
- Gas stations39
- Insurance agencies46
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many car washes and detailers are in Cassia County, ID?
Map listings as of September 2026 show 7 car washes and detailers in Cassia County. 2 of them (29%) are chain locations. The listings count car washes and detailers. No official count is published for car washes in Cassia County: counts under 3 are left out.
How much do households in Cassia County, ID spend on vehicle maintenance and repairs?
About $10.7M a year, or $1,262 per household. That is 32% above the U.S. average (an index of 132, where 100 is the U.S. average). Spread across the 7 car washes and detailers on map listings, it comes to $1.5M per location. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade. It is estimated from the incomes of the 8,495 households in Cassia County and national spending patterns by income.
How does Cassia County, ID compare with the U.S. for car washes and detailers?
Cassia County has 8.2 car washes and detailers per 10,000 households, 2.2 times the U.S. rate of 3.8. Spending per location is $1.5M, 39% below the U.S. figure of $2.5M. At the U.S. ratio of car washes and detailers to household spending, Cassia County would have about 4, against 7 on map listings.
How fast is Cassia County, ID growing?
Population estimates put Cassia County at 26,397 people in 2025, up 6.6% since 2020, faster than the U.S. (+3.1%). It has 8,495 households. The median household income in Cassia County is $70,830 a year, 12% below the U.S. median of $80,734. That rose 33.8% 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. Cassia County scores 54 for car washes and detailers (upper middle), #637 of 1,451 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Cassia County. It maps the car washes and detailers 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 car washes and detailers · All 56 business types in Cassia County
Screening a site or an acquisition in Cassia 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 Cassia 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.