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Oil change and quick-lube shops in St. Mary’s County, MD

Competitor counts, household spending and official business counts for oil change and quick-lube shops in St. Mary’s County, MD, set against other counties and the U.S.

Groundwork market score

Not scored

The score needs at least 5 listings; this market has none.

Listings
0
None on the map
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$46.6M
On vehicle maintenance and repairs · $1,099 a household
Spending per listing
n/a
Listings per 10k households
0.0
Population, 2025
116,692
+2.4% since 2020

See the oil change and quick-lube shops around any address in St. Mary’s County

The site report maps the oil change and quick-lube shops 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 St. Mary’s County. 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

At $1,099 per household (15% above the U.S. average), households in St. Mary’s County spend about $46.6M a year on vehicle maintenance and repairs. The spending figure covers all vehicle maintenance and repairs, not only oil change and quick-lube shops.

Map listings as of September 2026 show no oil change and quick-lube shops in St. Mary’s County. At the national ratio of oil change and quick-lube shops to household spending, St. Mary’s County would have about 3, against none on map listings.

Official counts don’t publish a figure for oil change and lubrication shops in St. Mary’s County, since they leave out counts under 3.

Population estimates put the population change in St. Mary’s County from 2020 to 2025 at +2.4%, slower than the U.S. (+3.1%). With no oil change and quick-lube shops on map listings, St. Mary’s County isn’t given a market score for them.

How St. Mary’s County compares

The same measures for Maryland and the whole U.S. Spending per listing divides a year of household spending on all vehicle maintenance and repairs by the oil change and quick-lube shops counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Oil change and quick lube in St. Mary’s County, MD compared with Maryland and the U.S.
MeasureSt. Mary’s CountyMarylandU.S.
Listings per 10k households0.00.40.7
Spending per listingn/a$21.5M$13.7M
Households per official establishmentn/a21,09814,222
Official establishment growth, 2019–2023n/a+3.7%+12.1%
Population growth, 2020–2025+2.4%+1.4%+3.1%
Spending per household on vehicle maintenance and repairs$1,099$908$958
Median household income$119,446$103,678$80,734
Groundwork market scoreNot scored62

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
3The 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 oil change and lubrication shops in St. Mary’s 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 St. Mary’s County

Population, 2025 estimate
116,692+2.4% since 2020
Households
42,436
Median age
38.0
Homes lived in by their owners
73%
Vehicles per household
2.1
Land area
359 sq. mi.
People per square mile
321
Median household income
$119,446+33.0% vs. 2015–2019, before inflation
Average household income
$142,976
Median home value
$407,600
Jobs located here
35,732
Daytime population
104,060Residents who don’t work, plus everyone whose job is here

Looking at a specific site in St. Mary’s 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 oil change and quick-lube shops on map listings by name and distance.

Or open the report at the center of St. Mary’s County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Oil change and quick lube across Maryland

Every Maryland market ranked →

The highest-scoring counties in Maryland for oil change and quick-lube shops, numbered among those based in Maryland, with St. Mary’s County marked.

Top counties in Maryland

Counties in Maryland ranked for oil change and quick-lube shops by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Montgomery County, MD71120.3$29.4M+1.3%#51 of 479
2Harford County, MD6850.5$20.6M+2.0%#87 of 479
3Howard County, MD6870.6$18M+1.9%#88 of 479
4Prince George’s County, MD61170.5$18M+0.5%#145 of 479
5Anne Arundel County, MD60160.7$14.4M+1.7%#154 of 479
6Baltimore County, MD58150.5$18.9M−0.7%#173 of 479
St. Mary’s County, MDNot scored00.0n/a+2.4%

Other business types in St. Mary’s County

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

Questions

How many oil change and quick-lube shops are in St. Mary’s County, MD?

There are no oil change and quick-lube shops on map listings in St. Mary’s County as of September 2026. The listings count oil change and quick-lube shops. No official count is published for oil change and lubrication shops in St. Mary’s County: counts under 3 are left out.

How much do households in St. Mary’s County, MD spend on vehicle maintenance and repairs?

About $46.6M a year, or $1,099 per household. That is 15% above the U.S. average (an index of 115, where 100 is the U.S. average). That spending covers all vehicle maintenance and repairs, which oil change and quick-lube shops share with other businesses in the trade. It is estimated from the incomes of the 42,436 households in St. Mary’s County and national spending patterns by income.

How does St. Mary’s County, MD compare with the U.S. for oil change and quick-lube shops?

St. Mary’s County has no oil change and quick-lube shops on map listings. At the U.S. ratio of oil change and quick-lube shops to household spending, St. Mary’s County would have about 3, against none on map listings.

How fast is St. Mary’s County, MD growing?

Population estimates put St. Mary’s County at 116,692 people in 2025, up 2.4% since 2020, slower than the U.S. (+3.1%). It has 42,436 households. Median household income in St. Mary’s County is $119,446, 48% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.0%, 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. St. Mary’s County has no market score for oil change and quick-lube shops, having none on map listings.

How can I see the market around a specific site?

Run a Groundwork site report on an address in St. Mary’s County. It maps the oil change and quick-lube shops 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 oil change and quick-lube shops · All 56 business types in St. Mary’s County

Screening a site or an acquisition in St. Mary’s 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 St. Mary’s 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.