Auto · County · California
Car washes and detailers in Sierra County, CA
How Sierra County, CA compares with other counties and the U.S. for car washes and detailers: competitors, household spending, official counts and growth.
Groundwork market score
Not scored
Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.
- Listings
- 0
- None on the map
- Official establishments
- n/a
- Fewer than 3, or not published
- Household spending a year
- $1.1M
- On vehicle maintenance and repairs · $888 a household
- Spending per listing
- n/a
- Listings per 10k households
- 0.0
- Population, 2025
- 3,098
- −4.0% since 2020
See the car washes and detailers around any address in Sierra 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 Sierra 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
There are no car washes and detailers on map listings in Sierra County as of September 2026.
At $888 per household (7% below the U.S. average), households in Sierra County spend about $1.1M a year on vehicle maintenance and repairs. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade.
There is no official count of businesses with payroll classed as car washes in Sierra County: counts under 3 aren’t published.
Population estimates show Sierra County declined 4.0% from 2020 to 2025, against +3.1% for the U.S. Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.
How Sierra 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 | Sierra County | California | U.S. |
|---|---|---|---|
| Listings per 10k households | 0.0 | 3.3 | 3.8 |
| Spending per listing | n/a | $3.4M | $2.5M |
| Households per official establishment | n/a | 6,073 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +10.2% | +16.7% |
| Population growth, 2020–2025 | −4.0% | −0.4% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $888 | $1,122 | $958 |
| Median household income | $63,355 | $99,122 | $80,734 |
| Groundwork market score | Not scored | 60 |
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
- 0
- Listings at the U.S. rate for this spending
- 0The 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 Sierra 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 Sierra County
- Population, 2025 estimate
- 3,098−4.0% since 2020
- Households
- 1,219
- Median age
- 54.9
- Homes lived in by their owners
- 72%
- Vehicles per household
- 1.8
- Land area
- 953 sq. mi.
- People per square mile
- 3
- Median household income
- $63,355
- Average household income
- $81,457
- Median home value
- $331,900
- Jobs located here
- 532
- Daytime population
- 2,187Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Sierra 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 Sierra 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 Sierra 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 |
| Sierra County, CA | Not scored | 0 | 0.0 | n/a | −4.0% |
Other business types in Sierra County
None has a Groundwork market score here. Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.
Food and drink
Groceries and convenience
Auto
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 Sierra County, CA?
Map listings as of September 2026 show no car washes and detailers in Sierra County. The listings count car washes and detailers. No official count is published for car washes in Sierra County: counts under 3 are left out.
How much do households in Sierra County, CA spend on vehicle maintenance and repairs?
About $1.1M a year, or $888 per household. That is 7% below the U.S. average (an index of 93, where 100 is the U.S. average). The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers. It is estimated from the incomes of the 1,219 households in Sierra County and national spending patterns by income.
How does Sierra County, CA compare with the U.S. for car washes and detailers?
Sierra County has no car washes and detailers on map listings.
How fast is Sierra County, CA growing?
Population estimates put Sierra County at 3,098 people in 2025, down 4.0% since 2020, against +3.1% for the U.S. It has 1,219 households. Median household income in Sierra County is $63,355, 22% below the U.S. median of $80,734.
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. The score leaves out counties under 10,000 people, where a handful of businesses would swing it.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Sierra 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 Sierra County
Screening a site or an acquisition in Sierra 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 Sierra 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.