Auto · County · Oregon
Car washes and detailers in Multnomah County, OR
How Multnomah County, OR 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 56 out of 100: Upper middle
Ranked #556 of 1,451 scored counties
#16 of 24 scored counties in Oregon
- Listings
- 92
- 22 chain locations (24%)
- Official establishments
- 45
- +15.4% since 2019
- Household spending a year
- $306.4M
- On vehicle maintenance and repairs · $876 a household
- Spending per listing
- $3.3M
- 32% above the U.S.
- Listings per 10k households
- 2.6
- 32% below the U.S.
- Population, 2025
- 795,391
- −2.6% since 2020
See the car washes and detailers around any address in Multnomah 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 Multnomah 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
Household spending on vehicle maintenance and repairs in Multnomah County comes to about $306.4M a year: $876 per household, 9% below the U.S. average. That is about $3.3M of household spending for each location on map listings, 32% above the U.S. figure of $2.5M. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers.
There are 92 car washes and detailers on map listings in Multnomah County as of September 2026. Of those, 22 are chain locations, or 24%, against 23% across the U.S. Per 10,000 households, that is 2.6, 32% below the U.S. rate of 3.8.
The official count of businesses with payroll classed as car washes in Multnomah County was 45 in 2023, up 15.4% from 2019. That is one for every 7,773 households, against one for every 6,523 across the U.S.
Population estimates put the population change in Multnomah County from 2020 to 2025 at −2.6%, against +3.1% for the U.S. For car washes and detailers, Multnomah County has a Groundwork market score of 56 (upper middle): #556 of 1,451 scored counties and #16 of 24 scored counties in Oregon.
How Multnomah County compares
The same measures for Oregon 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 | Multnomah County | Oregon | U.S. |
|---|---|---|---|
| Listings per 10k households | 2.6 | 3.3 | 3.8 |
| Spending per listing | $3.3M | $3.2M | $2.5M |
| Households per official establishment | 7,773 | 7,043 | 6,523 |
| Official establishment growth, 2019–2023 | +15.4% | +7.5% | +16.7% |
| Population growth, 2020–2025 | −2.6% | +0.7% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $876 | $1,050 | $958 |
| Median household income | $88,766 | $83,011 | $80,734 |
| Groundwork market score | 56 | 66 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 39 → 45+15.4% over the period
- Employees, 2023
- 284
- Annual payroll, 2023
- $11.7M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 9222 chain locations
- Listings at the U.S. rate for this spending
- 122The 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 Multnomah 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 Multnomah County
- Population, 2025 estimate
- 795,391−2.6% since 2020
- Households
- 349,803
- Median age
- 39.4
- Homes lived in by their owners
- 53%
- Vehicles per household
- 1.5
- Land area
- 431 sq. mi.
- People per square mile
- 1,860
- Median household income
- $88,766+28.3% vs. 2015–2019, before inflation
- Average household income
- $122,099
- Median home value
- $552,700
- Jobs located here
- 522,256
- Daytime population
- 927,649Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Multnomah 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 Multnomah 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 Oregon
Every Oregon market ranked →The highest-scoring counties in Oregon for car washes and detailers, numbered among those based in Oregon, with Multnomah County marked.
Top counties in Oregon
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Columbia County, OR | 85 | 7 | 3.3 | $3.8M | +2.6% | #35 of 1,451 |
| 2Benton County, OR | 78 | 13 | 3.4 | $3.1M | +4.4% | #82 of 1,451 |
| 3Washington County, OR | 76 | 60 | 2.5 | $4.2M | +1.8% | #106 of 1,451 |
| 4Clackamas County, OR | 73 | 35 | 2.1 | $5.5M | +0.9% | #150 of 1,451 |
| 5Klamath County, OR | 71 | 8 | 2.8 | $3.8M | +0.9% | #197 of 1,451 |
| 6Polk County, OR | 70 | 7 | 2.1 | $5.4M | +2.3% | #223 of 1,451 |
| 7Umatilla County, OR | 69 | 10 | 3.5 | $3.4M | +1.5% | #250 of 1,451 |
| 8Josephine County, OR | 68 | 13 | 3.5 | $3.2M | −0.4% | #278 of 1,451 |
| 9Linn County, OR | 67 | 22 | 4.3 | $2.6M | +3.0% | #304 of 1,451 |
| 10Marion County, OR | 66 | 43 | 3.4 | $3.2M | +2.7% | #315 of 1,451 |
| 16Multnomah County, OR | 56 | 92 | 2.6 | $3.3M | −2.6% | #556 of 1,451 |
Other business types in Multnomah 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 care44
- Auto repair shops39
- Collision repair and body shops39
- Car washes and detailing56
- Tire shops57
- Oil change and quick lube53
- Gas stations61
- Insurance agencies32
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 Multnomah County, OR?
As of September 2026, map listings count 92 car washes and detailers in Multnomah County. 22 of them (24%) are chain locations. The listings count car washes and detailers. Official counts show 45 businesses with payroll classed as car washes in 2023, up 15.4% from 2019.
How much do households in Multnomah County, OR spend on vehicle maintenance and repairs?
About $306.4M a year, or $876 per household. That is 9% below the U.S. average (an index of 91, where 100 is the U.S. average). Spread across the 92 car washes and detailers on map listings, it comes to $3.3M 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 349,803 households in Multnomah County and national spending patterns by income.
How does Multnomah County, OR compare with the U.S. for car washes and detailers?
Multnomah County has 2.6 car washes and detailers per 10,000 households, 32% below the U.S. rate of 3.8. Spending per location is $3.3M, 32% above the U.S. figure of $2.5M. At the U.S. ratio of car washes and detailers to household spending, Multnomah County would have about 122, against 92 on map listings. There is one business with payroll in the industry for every 7,773 households, against one for every 6,523 across the U.S. The official count rose 15.4% from 2019 to 2023, against +16.7% for the U.S.
How fast is Multnomah County, OR growing?
Population estimates put Multnomah County at 795,391 people in 2025, down 2.6% since 2020, against +3.1% for the U.S. It has 349,803 households. The median household income in Multnomah County is $88,766 a year, 10% above the U.S. median of $80,734. That rose 28.3% 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. Multnomah County scores 56 for car washes and detailers (upper middle), #556 of 1,451 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Multnomah 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 Multnomah County
Screening a site or an acquisition in Multnomah 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 Multnomah 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.