Auto · County · California
Car washes and detailers in San Diego County, CA
The car washes and detailers in San Diego County, CA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 65 out of 100: Upper middle
Ranked #339 of 1,451 scored counties
#27 of 45 scored counties in California
- Listings
- 409
- 61 chain locations (15%)
- Official establishments
- 185
- −7.5% since 2019
- Household spending a year
- $1.3B
- On vehicle maintenance and repairs · $1,128 a household
- Spending per listing
- $3.2M
- 28% above the U.S.
- Listings per 10k households
- 3.5
- 8% below the U.S.
- Population, 2025
- 3,282,248
- −0.6% since 2020
See the car washes and detailers around any address in San Diego 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 Diego 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 409 car washes and detailers in San Diego County. Chain locations make up 15% of them, against 23% across the U.S. That comes to 3.5 for every 10,000 households, 8% below the U.S. rate of 3.8.
At $1,128 per household (18% above the U.S. average), households in San Diego County spend about $1.3B a year on vehicle maintenance and repairs. Spread across 409 car washes and detailers, that is $3.2M per location, 28% 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.
Official counts show 185 businesses with payroll classed as car washes in San Diego County in 2023, down 7.5% from 2019. That is one for every 6,331 households, against one for every 6,523 across the U.S. Since fiscal 2022, 12 SBA-backed loans worth $7.6M have gone to businesses classed as car washes in San Diego County.
Population estimates show San Diego County declined 0.6% from 2020 to 2025, against +3.1% for the U.S. The Groundwork market score for car washes and detailers in San Diego County is 65 (upper middle), #339 of 1,451 scored counties and #27 of 45 scored counties in California. That puts it in the top quarter of counties.
How San Diego 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 Diego County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 3.5 | 3.3 | 3.8 |
| Spending per listing | $3.2M | $3.4M | $2.5M |
| Households per official establishment | 6,331 | 6,073 | 6,523 |
| Official establishment growth, 2019–2023 | −7.5% | +10.2% | +16.7% |
| Population growth, 2020–2025 | −0.6% | −0.4% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $1,128 | $1,122 | $958 |
| Median household income | $106,268 | $99,122 | $80,734 |
| Groundwork market score | 65 | 60 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 200 → 185−7.5% over the period
- Employees, 2023
- 1,634
- Annual payroll, 2023
- $46.1M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 40961 chain locations
- Listings at the U.S. rate for this spending
- 525The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 12
- Amount
- $7.6M
SBA-backed loans to businesses classed as car washes in San Diego 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 Diego County
- Population, 2025 estimate
- 3,282,248−0.6% since 2020
- Households
- 1,171,278
- Median age
- 38.9
- Homes lived in by their owners
- 55%
- Vehicles per household
- 1.9
- Land area
- 4,211 sq. mi.
- People per square mile
- 781
- Median household income
- $106,268+34.6% vs. 2015–2019, before inflation
- Average household income
- $141,250
- Median home value
- $854,700
- Jobs located here
- 1,516,991
- Daytime population
- 3,269,716Residents who don’t work, plus everyone whose job is here
Looking at a specific site in San Diego 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 Diego 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 Diego 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 |
| 27San Diego County, CA | 65 | 409 | 3.5 | $3.2M | −0.6% | #339 of 1,451 |
Other business types in San Diego 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 care54
- Auto repair shops53
- Collision repair and body shops63
- Car washes and detailing65
- Tire shops66
- Oil change and quick lube66
- Gas stations70
- Insurance agencies31
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 Diego County, CA?
San Diego County has 409 car washes and detailers on map listings as of September 2026. 61 of them (15%) are chain locations. The listings count car washes and detailers. Official counts show 185 businesses with payroll classed as car washes in 2023, down 7.5% from 2019.
How much do households in San Diego County, CA spend on vehicle maintenance and repairs?
About $1.3B a year, or $1,128 per household. That is 18% above the U.S. average (an index of 118, where 100 is the U.S. average). Spread across the 409 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 1,171,278 households in San Diego County and national spending patterns by income.
How does San Diego County, CA compare with the U.S. for car washes and detailers?
San Diego County has 3.5 car washes and detailers per 10,000 households, 8% below the U.S. rate of 3.8. Spending per location is $3.2M, 28% above the U.S. figure of $2.5M. At the national ratio of car washes and detailers to household spending, San Diego County would have about 525, against 409 on map listings. There is one business with payroll in the industry for every 6,331 households, against one for every 6,523 across the U.S. The official count fell 7.5% from 2019 to 2023, against +16.7% for the U.S.
How fast is San Diego County, CA growing?
Population estimates put San Diego County at 3,282,248 people in 2025, down 0.6% since 2020, against +3.1% for the U.S. It has 1,171,278 households. Median household income in San Diego County is $106,268, 32% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 34.6%, 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 Diego County scores 65 for car washes and detailers (upper middle), #339 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 Diego 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 Diego County
Screening a site or an acquisition in San Diego 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 Diego 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.