Groundwork

Auto · Small-town market · California

Car washes and detailers in the Sonora, CA area

How the Sonora, CA area compares with other small-town markets and the U.S. for car washes and detailers: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 65 out of 100: Upper middle

Ranked #102 of 441 scored small-town markets
#4 of 6 scored small-town markets based in California

Listings
9
0 chain locations (0%)
Official establishments
3
Businesses with payroll, 2023
Household spending a year
$25.9M
On vehicle maintenance and repairs · $1,142 a household
Spending per listing
$2.9M
14% above the U.S.
Listings per 10k households
4.0
5% above the U.S.
Population, 2025
53,160
−4.0% since 2020

See the car washes and detailers around any address in the Sonora area

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 the Sonora area. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey 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 the Sonora area comes to about $25.9M a year: $1,142 per household, 19% above the U.S. average. That is about $2.9M of household spending for each location on map listings, 14% 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 9 car washes and detailers on map listings in the Sonora area as of September 2026. None of them are chain locations, against 23% across the U.S. Per 10,000 households, that is 4.0, 5% above the U.S. rate of 3.8.

In 2023, official counts showed 3 businesses with payroll in the Sonora area classed as car washes. That is one for every 7,563 households, against one for every 6,523 across the U.S.

Population estimates put the population change in the Sonora area from 2020 to 2025 at −4.0%, against +3.1% for the U.S. The Sonora area scores 65 (upper middle) on the Groundwork market score for car washes and detailers, ranking #102 of 441 scored small-town markets and #4 of 6 scored small-town markets based in California. That puts it in the top quarter of small-town markets.

How the Sonora area 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.

Car washes and detailing in Sonora, CA area compared with California and the U.S.
MeasureSonora areaCaliforniaU.S.
Listings per 10k households4.03.33.8
Spending per listing$2.9M$3.4M$2.5M
Households per official establishment7,5636,0736,523
Official establishment growth, 2019–2023n/a+10.2%+16.7%
Population growth, 2020–2025−4.0%−0.4%+3.1%
Spending per household on vehicle maintenance and repairs$1,142$1,122$958
Median household income$77,404$99,122$80,734
Groundwork market score6560

Official counts and lending

Businesses

Official establishments, 2019 to 2023
3
Employees, 2023
11
Annual payroll, 2023
$390K
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
90 chain locations
Listings at the U.S. rate for this spending
10The 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 the Sonora area, 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 the Sonora area

Population, 2025 estimate
53,160−4.0% since 2020
Households
22,690
Median age
48.6
Homes lived in by their owners
74%
Vehicles per household
2.0
Land area
2,221 sq. mi.
People per square mile
25
Median household income
$77,404+28.8% vs. 2015–2019, before inflation
Average household income
$104,064
Median home value
$433,200
Jobs located here
16,129
Daytime population
40,598Residents who don’t work, plus everyone whose job is here

Looking at a specific site in the Sonora area?

These figures cover the whole small-town market. 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 the Sonora area. Signed out, you see a blurred preview; on an account, each report is one action.

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Car washes and detailing across California

Every California market ranked →

The highest-scoring small-town markets in California for car washes and detailers, numbered among those based in California (a market based in another state is listed without a number), with the Sonora area marked.

Top small-town markets in California

Small-town markets in California ranked for car washes and detailers by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Truckee-Grass Valley, CA78112.6$4.6M−0.4%#22 of 441
Gardnerville Ranchos, NV-CA7083.7$3.4M+0.9%#71 of 441
2Ukiah, CA6972.0$5.2M−3.5%#78 of 441
3Clearlake, CA66114.1$2.8M−0.6%#96 of 441
4Sonora, CA6594.0$2.9M−4.0%#102 of 441
5Red Bluff, CA6193.6$3M−1.7%#131 of 441
6Eureka-Arcata, CA47244.4$2.3M−3.4%#240 of 441

Other business types in the Sonora area

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many car washes and detailers are in the Sonora, CA area?

As of September 2026, map listings count 9 car washes and detailers in the Sonora area. None of them are chain locations. The listings count car washes and detailers. Official counts show 3 businesses with payroll classed as car washes in 2023.

How much do households in the Sonora, CA area spend on vehicle maintenance and repairs?

About $25.9M a year, or $1,142 per household. That is 19% above the U.S. average (an index of 119, where 100 is the U.S. average). Spread across the 9 car washes and detailers on map listings, it comes to $2.9M 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 22,690 households in the Sonora area and national spending patterns by income.

How does the Sonora, CA area compare with the U.S. for car washes and detailers?

The Sonora area has 4.0 car washes and detailers per 10,000 households, 5% above the U.S. rate of 3.8. Spending per location is $2.9M, 14% above the U.S. figure of $2.5M. At the U.S. ratio of car washes and detailers to household spending, the Sonora area would have about 10, against 9 on map listings. There is one business with payroll in the industry for every 7,563 households, against one for every 6,523 across the U.S.

How fast is the Sonora, CA area growing?

Population estimates put the Sonora area at 53,160 people in 2025, down 4.0% since 2020, against +3.1% for the U.S. It has 22,690 households. The median household income in the Sonora area is $77,404 a year, 4% below the U.S. median of $80,734. That rose 28.8% 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. A small-town market is a town of 10,000 to 50,000 people and the county or counties tied to it by commuting. 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 Sonora area scores 65 for car washes and detailers (upper middle), #102 of 441 scored small-town markets.

How can I see the market around a specific site?

Run a Groundwork site report on an address in the Sonora area. 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 the Sonora area

Screening a site or an acquisition in the Sonora area?

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 the Sonora area. 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.