Auto · County · Washington
Car washes and detailers in Island County, WA
The car washes and detailers in Island County, WA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 71 out of 100: Upper middle
Ranked #196 of 1,451 scored counties
#12 of 20 scored counties in Washington
- Listings
- 10
- 2 chain locations (20%)
- Official establishments
- n/a
- Fewer than 3, or not published
- Household spending a year
- $42.2M
- On vehicle maintenance and repairs · $1,174 a household
- Spending per listing
- $4.2M
- 68% above the U.S.
- Listings per 10k households
- 2.8
- 26% below the U.S.
- Population, 2025
- 85,657
- −1.5% since 2020
See the car washes and detailers around any address in Island 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 Island 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 $1,174 per household (23% above the U.S. average), households in Island County spend about $42.2M a year on vehicle maintenance and repairs. Spread across 10 car washes and detailers, that is $4.2M per location, 68% above the U.S. figure of $2.5M. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers.
Island County has 10 car washes and detailers on map listings as of September 2026. Of those, 2 are chain locations, or 20%, against 23% across the U.S. Per 10,000 households, that is 2.8, 26% below the U.S. rate of 3.8.
Official counts don’t publish a figure for car washes in Island County, since they leave out counts under 3.
Population estimates put the population change in Island County from 2020 to 2025 at −1.5%, against +3.1% for the U.S. For car washes and detailers, Island County has a Groundwork market score of 71 (upper middle): #196 of 1,451 scored counties and #12 of 20 scored counties in Washington. That puts it in the top quarter of counties.
How Island County compares
The same measures for Washington 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 | Island County | Washington | U.S. |
|---|---|---|---|
| Listings per 10k households | 2.8 | 2.8 | 3.8 |
| Spending per listing | $4.2M | $3.9M | $2.5M |
| Households per official establishment | n/a | 7,161 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +8.1% | +16.7% |
| Population growth, 2020–2025 | −1.5% | +3.6% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,174 | $1,104 | $958 |
| Median household income | $90,551 | $98,141 | $80,734 |
| Groundwork market score | 71 | 80 |
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
- 102 chain locations
- Listings at the U.S. rate for this spending
- 17The 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 Island 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 Island County
- Population, 2025 estimate
- 85,657−1.5% since 2020
- Households
- 35,972
- Median age
- 46.9
- Homes lived in by their owners
- 75%
- Vehicles per household
- 2.1
- Land area
- 209 sq. mi.
- People per square mile
- 416
- Median household income
- $90,551+32.0% vs. 2015–2019, before inflation
- Average household income
- $113,035
- Median home value
- $593,300
- Jobs located here
- 16,025
- Daytime population
- 70,254Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Island 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 Island 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 Washington
Every Washington market ranked →The highest-scoring counties in Washington for car washes and detailers, numbered among those based in Washington, with Island County marked.
Top counties in Washington
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Clark County, WA | 87 | 54 | 2.8 | $4.2M | +5.3% | #20 of 1,451 |
| 2Lewis County, WA | 85 | 9 | 2.7 | $4.5M | +6.7% | #33 of 1,451 |
| 3Snohomish County, WA | 83 | 81 | 2.6 | $4.7M | +4.9% | #43 of 1,451 |
| 4King County, WA | 79 | 185 | 2.0 | $5M | +3.1% | #63 of 1,451 |
| 5Whatcom County, WA | 78 | 30 | 3.2 | $3.5M | +3.9% | #76 of 1,451 |
| 6Cowlitz County, WA | 77 | 12 | 2.7 | $4.2M | +3.5% | #90 of 1,451 |
| 7Kittitas County, WA | 75 | 5 | 2.5 | $4.8M | +4.2% | #116 of 1,451 |
| 8Pierce County, WA | 75 | 116 | 3.3 | $3.5M | +2.5% | #120 of 1,451 |
| 9Thurston County, WA | 74 | 42 | 3.5 | $3.2M | +2.8% | #141 of 1,451 |
| 10Kitsap County, WA | 73 | 27 | 2.5 | $4.8M | +2.7% | #152 of 1,451 |
| 12Island County, WA | 71 | 10 | 2.8 | $4.2M | −1.5% | #196 of 1,451 |
Other business types in Island 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 care79
- Auto repair shops78
- Collision repair and body shops76
- Car washes and detailing71
- Tire shops73
- Oil change and quick lube
- Gas stations74
- Insurance agencies69
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 Island County, WA?
Map listings as of September 2026 show 10 car washes and detailers in Island County. 2 of them (20%) are chain locations. The listings count car washes and detailers. No official count is published for car washes in Island County: counts under 3 are left out.
How much do households in Island County, WA spend on vehicle maintenance and repairs?
About $42.2M a year, or $1,174 per household. That is 23% above the U.S. average (an index of 123, where 100 is the U.S. average). Spread across the 10 car washes and detailers on map listings, it comes to $4.2M 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 35,972 households in Island County and national spending patterns by income.
How does Island County, WA compare with the U.S. for car washes and detailers?
Island County has 2.8 car washes and detailers per 10,000 households, 26% below the U.S. rate of 3.8. Spending per location is $4.2M, 68% above the U.S. figure of $2.5M. At the U.S. ratio of car washes and detailers to household spending, Island County would have about 17, against 10 on map listings.
How fast is Island County, WA growing?
Population estimates put Island County at 85,657 people in 2025, down 1.5% since 2020, against +3.1% for the U.S. It has 35,972 households. The median household income in Island County is $90,551 a year, 12% above the U.S. median of $80,734. That rose 32.0% 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. Island County scores 71 for car washes and detailers (upper middle), #196 of 1,451 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Island 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 Island County
Screening a site or an acquisition in Island 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 Island 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.