Groundwork

Auto · Small-town market · Pennsylvania

Car washes and detailers in the St. Marys, PA area

Competitor counts, household spending and official business counts for car washes and detailers in the St. Marys, PA area, set against other small-town markets and the U.S.

Groundwork market score · out of 100

Score 13 out of 100: Low

Ranked #431 of 441 scored small-town markets
#18 of 18 scored small-town markets based in Pennsylvania

Listings
8
0 chain locations (0%)
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$11.7M
On vehicle maintenance and repairs · $880 a household
Spending per listing
$1.5M
42% below the U.S.
Listings per 10k households
6.0
58% above the U.S.
Population, 2025
29,926
−3.3% since 2020

See the car washes and detailers around any address in the St. Marys 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 St. Marys 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

The St. Marys area scores 13 (low) on the Groundwork market score for car washes and detailers, ranking #431 of 441 scored small-town markets and #18 of 18 scored small-town markets based in Pennsylvania. That puts it in the bottom quarter of small-town markets.

Map listings as of September 2026 show 8 car washes and detailers in the St. Marys area. None of them are chain locations, against 23% across the U.S. Per 10,000 households, that is 6.0, 58% above the U.S. rate of 3.8.

Household spending on vehicle maintenance and repairs in the St. Marys area comes to about $11.7M a year: $880 per household, 8% below the U.S. average. That is about $1.5M of household spending for each location on map listings, 42% below 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.

There is no official count of businesses with payroll classed as car washes in the St. Marys area: counts under 3 aren’t published. Population estimates put the population change in the St. Marys area from 2020 to 2025 at −3.3%, against +3.1% for the U.S.

How the St. Marys area compares

The same measures for Pennsylvania 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 St. Marys, PA area compared with Pennsylvania and the U.S.
MeasureSt. Marys areaPennsylvaniaU.S.
Listings per 10k households6.03.73.8
Spending per listing$1.5M$2.2M$2.5M
Households per official establishmentn/a8,3996,523
Official establishment growth, 2019–2023n/a+9.0%+16.7%
Population growth, 2020–2025−3.3%+0.5%+3.1%
Spending per household on vehicle maintenance and repairs$880$837$958
Median household income$66,380$77,971$80,734
Groundwork market score1336

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
80 chain locations
Listings at the U.S. rate for this spending
5The 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 St. Marys 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 St. Marys area

Population, 2025 estimate
29,926−3.3% since 2020
Households
13,325
Median age
47.8
Homes lived in by their owners
80%
Vehicles per household
1.9
Land area
827 sq. mi.
People per square mile
37
Median household income
$66,380+24.2% vs. 2015–2019, before inflation
Average household income
$81,773
Median home value
$133,600
Jobs located here
12,876
Daytime population
29,443Residents who don’t work, plus everyone whose job is here

Looking at a specific site in the St. Marys 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 St. Marys 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 Pennsylvania

Every Pennsylvania market ranked →

The highest-scoring small-town markets in Pennsylvania for car washes and detailers, numbered among those based in Pennsylvania, with the St. Marys area marked.

Top small-town markets in Pennsylvania

Small-town markets in Pennsylvania ranked for car washes and detailers by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1East Stroudsburg, PA72152.5$3.9M−0.7%#65 of 441
2Sayre, PA5883.3$2.7M−0.6%#149 of 441
3Lock Haven, PA5653.2$2.7M+1.3%#164 of 441
4Lewistown, PA5552.7$3.1M0.0%#171 of 441
5Somerset, PA55103.4$2.6M−2.7%#172 of 441
6Pottsville, PA53264.5$2M+1.5%#193 of 441
7Bloomsburg-Berwick, PA49103.8$2.3M+2.3%#224 of 441
8Hermitage, PA48163.4$2.3M−2.4%#231 of 441
9Sunbury, PA44204.4$1.9M−1.7%#271 of 441
10Bradford, PA3553.1$2.5M−3.5%#336 of 441
18St. Marys, PA1386.0$1.5M−3.3%#431 of 441

Other business types in the St. Marys 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 St. Marys, PA area?

There are 8 car washes and detailers on map listings in the St. Marys area as of September 2026. None of them are chain locations. The listings count car washes and detailers. No official count is published for car washes in the St. Marys area: counts under 3 are left out.

How much do households in the St. Marys, PA area spend on vehicle maintenance and repairs?

About $11.7M a year, or $880 per household. That is 8% below the U.S. average (an index of 92, where 100 is the U.S. average). Spread across the 8 car washes and detailers on map listings, it comes to $1.5M 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 13,325 households in the St. Marys area and national spending patterns by income.

How does the St. Marys, PA area compare with the U.S. for car washes and detailers?

The St. Marys area has 6.0 car washes and detailers per 10,000 households, 58% above the U.S. rate of 3.8. Spending per location is $1.5M, 42% below the U.S. figure of $2.5M. At the national ratio of car washes and detailers to household spending, the St. Marys area would have about 5, against 8 on map listings.

How fast is the St. Marys, PA area growing?

Population estimates put the St. Marys area at 29,926 people in 2025, down 3.3% since 2020, against +3.1% for the U.S. It has 13,325 households. Median household income in the St. Marys area is $66,380, 18% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 24.2%, 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 St. Marys area scores 13 for car washes and detailers (low), #431 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 St. Marys 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 St. Marys area

Screening a site or an acquisition in the St. Marys 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 St. Marys 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.