Auto · County · California
Car washes and detailers in San Joaquin County, CA
The car washes and detailers in San Joaquin County, CA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 72 out of 100: Upper middle
Ranked #179 of 1,451 scored counties
#16 of 45 scored counties in California
- Listings
- 95
- 29 chain locations (31%)
- Official establishments
- 51
- +18.6% since 2019
- Household spending a year
- $299.5M
- On vehicle maintenance and repairs · $1,221 a household
- Spending per listing
- $3.2M
- 25% above the U.S.
- Listings per 10k households
- 3.9
- 3% above the U.S.
- Population, 2025
- 823,815
- +5.5% since 2020
See the car washes and detailers around any address in San Joaquin 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 San Joaquin 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
As of September 2026, map listings count 95 car washes and detailers in San Joaquin County. Chain locations make up 31% of them, against 23% across the U.S. That comes to 3.9 for every 10,000 households, 3% above the U.S. rate of 3.8.
Household spending on vehicle maintenance and repairs in San Joaquin County comes to about $299.5M a year: $1,221 per household, 27% above the U.S. average. Spread across 95 car washes and detailers, that is $3.2M per location, 25% above the U.S. figure of $2.5M. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade.
In 2023, official counts showed 51 businesses with payroll in San Joaquin County classed as car washes, up 18.6% from 2019. That is one for every 4,809 households, against one for every 6,523 across the U.S. Since fiscal 2022, 6 SBA-backed loans worth $12M have gone to businesses classed as car washes in San Joaquin County.
Population estimates show San Joaquin County grew 5.5% from 2020 to 2025, faster than the U.S. (+3.1%). For car washes and detailers, San Joaquin County has a Groundwork market score of 72 (upper middle): #179 of 1,451 scored counties and #16 of 45 scored counties in California. That puts it in the top quarter of counties.
How San Joaquin County compares
The same measures for California 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 | San Joaquin County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 3.9 | 3.3 | 3.8 |
| Spending per listing | $3.2M | $3.4M | $2.5M |
| Households per official establishment | 4,809 | 6,073 | 6,523 |
| Official establishment growth, 2019–2023 | +18.6% | +10.2% | +16.7% |
| Population growth, 2020–2025 | +5.5% | −0.4% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,221 | $1,122 | $958 |
| Median household income | $92,179 | $99,122 | $80,734 |
| Groundwork market score | 72 | 60 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 43 → 51+18.6% over the period
- Employees, 2023
- 632
- Annual payroll, 2023
- $21.3M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 9529 chain locations
- Listings at the U.S. rate for this spending
- 119The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 6
- Amount
- $12M
SBA-backed loans to businesses classed as car washes in San Joaquin 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 San Joaquin County
- Population, 2025 estimate
- 823,815+5.5% since 2020
- Households
- 245,250
- Median age
- 35.9
- Homes lived in by their owners
- 62%
- Vehicles per household
- 2.1
- Land area
- 1,392 sq. mi.
- People per square mile
- 573
- Median household income
- $92,179+43.1% vs. 2015–2019, before inflation
- Average household income
- $117,604
- Median home value
- $530,700
- Jobs located here
- 284,408
- Daytime population
- 748,070Residents who don’t work, plus everyone whose job is here
Looking at a specific site in San Joaquin 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 San Joaquin 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 California
Every California market ranked →The highest-scoring counties in California for car washes and detailers, numbered among those based in California, with San Joaquin County marked.
Top counties in California
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1San Benito County, CA | 89 | 6 | 2.9 | $5M | +8.6% | #9 of 1,451 |
| 2Madera County, CA | 89 | 15 | 3.3 | $3.6M | +7.4% | #14 of 1,451 |
| 3Yuba County, CA | 86 | 6 | 2.1 | $5.4M | +8.2% | #24 of 1,451 |
| 4Calaveras County, CA | 86 | 6 | 3.3 | $4M | +2.8% | #26 of 1,451 |
| 5Placer County, CA | 85 | 51 | 3.2 | $3.7M | +8.9% | #36 of 1,451 |
| 6Contra Costa County, CA | 82 | 96 | 2.3 | $5.3M | +0.3% | #47 of 1,451 |
| 7Santa Clara County, CA | 78 | 152 | 2.3 | $5.2M | −0.9% | #73 of 1,451 |
| 8Santa Cruz County, CA | 77 | 15 | 1.5 | $7.9M | −4.7% | #86 of 1,451 |
| 9El Dorado County, CA | 76 | 20 | 2.6 | $4.9M | +0.6% | #105 of 1,451 |
| 10Nevada County, CA | 75 | 11 | 2.6 | $4.6M | −0.4% | #117 of 1,451 |
| 16San Joaquin County, CA | 72 | 95 | 3.9 | $3.2M | +5.5% | #179 of 1,451 |
Other business types in San Joaquin 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 care64
- Auto repair shops65
- Collision repair and body shops73
- Car washes and detailing72
- Tire shops63
- Oil change and quick lube78
- Gas stations79
- Insurance agencies64
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 San Joaquin County, CA?
San Joaquin County has 95 car washes and detailers on map listings as of September 2026. 29 of them (31%) are chain locations. The listings count car washes and detailers. Official counts show 51 businesses with payroll classed as car washes in 2023, up 18.6% from 2019.
How much do households in San Joaquin County, CA spend on vehicle maintenance and repairs?
About $299.5M a year, or $1,221 per household. That is 27% above the U.S. average (an index of 127, where 100 is the U.S. average). Spread across the 95 car washes and detailers on map listings, it comes to $3.2M per location. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers. It is estimated from the incomes of the 245,250 households in San Joaquin County and national spending patterns by income.
How does San Joaquin County, CA compare with the U.S. for car washes and detailers?
San Joaquin County has 3.9 car washes and detailers per 10,000 households, 3% above the U.S. rate of 3.8. Spending per location is $3.2M, 25% above the U.S. figure of $2.5M. At the national ratio of car washes and detailers to household spending, San Joaquin County would have about 119, against 95 on map listings. There is one business with payroll in the industry for every 4,809 households, against one for every 6,523 across the U.S. The official count rose 18.6% from 2019 to 2023, against +16.7% for the U.S.
How fast is San Joaquin County, CA growing?
Population estimates put San Joaquin County at 823,815 people in 2025, up 5.5% since 2020, faster than the U.S. (+3.1%). It has 245,250 households. Median household income in San Joaquin County is $92,179, 14% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 43.1%, 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. San Joaquin County scores 72 for car washes and detailers (upper middle), #179 of 1,451 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in San Joaquin 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 San Joaquin County
Screening a site or an acquisition in San Joaquin 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 San Joaquin 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.