Fitness and classes · County · Maryland
Gyms and studios in St. Mary’s County, MD
Competitor counts, household spending and official business counts for gyms and studios in St. Mary’s County, MD, set against other counties and the U.S.
Groundwork market score · out of 100
Score 74 out of 100: Upper middle
Ranked #150 of 2,088 scored counties
#2 of 23 scored counties in Maryland
- Listings
- 40
- 9 chain locations (23%)
- Official establishments
- 21
- +5.0% since 2019
- Household spending a year
- $48.9M
- On memberships, classes and admissions · $1,152 a household
- Spending per listing
- $1.2M
- 85% above the U.S.
- Listings per 10k households
- 9.4
- 37% below the U.S.
- Population, 2025
- 116,692
- +2.4% since 2020
See the gyms and studios around any address in St. Mary’s County
The site report maps the gyms and studios 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.
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
For gyms and studios, St. Mary’s County has a Groundwork market score of 74 (upper middle): #150 of 2,088 scored counties and #2 of 23 scored counties in Maryland. That puts it in the top 10% of counties for gyms and studios.
Map listings as of September 2026 show 40 gyms and studios in St. Mary’s County. 9 of them (23%) are chain locations, against 20% across the U.S. That comes to 9.4 for every 10,000 households, 37% below the U.S. rate of 14.9.
Household spending on memberships, classes and admissions in St. Mary’s County comes to about $48.9M a year: $1,152 per household, 17% above the U.S. average. Spread across 40 gyms and studios, that is $1.2M per location, 85% above the U.S. figure of $662K.
The official count of businesses with payroll classed as fitness centers and recreation instruction in St. Mary’s County was 21 in 2023, up 5.0% from 2019. That is one for every 2,021 households, against one for every 1,641 across the U.S. Since fiscal 2022, 1 SBA-backed loan worth $997K has gone to businesses classed as fitness centers and recreation instruction in St. Mary’s County. 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%).
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 memberships, classes and admissions by the gyms and studios 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 | St. Mary’s County | Maryland | U.S. |
|---|---|---|---|
| Listings per 10k households | 9.4 | 13.6 | 14.9 |
| Spending per listing | $1.2M | $768K | $662K |
| Households per official establishment | 2,021 | 1,695 | 1,641 |
| Official establishment growth, 2019–2023 | +5.0% | −3.0% | +8.2% |
| Population growth, 2020–2025 | +2.4% | +1.4% | +3.1% |
| Spending per household on memberships, classes and admissions | $1,152 | $1,042 | $983 |
| Median household income | $119,446 | $103,678 | $80,734 |
| Groundwork market score | 74 | 62 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 20 → 21+5.0% over the period
- Employees, 2023
- 165
- Annual payroll, 2023
- $2.2M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 409 chain locations
- Listings at the U.S. rate for this spending
- 74The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 1
- Amount
- $997K
SBA-backed loans to businesses classed as fitness centers and recreation instruction 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 gyms and studios 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 cardGyms, studios and classes across Maryland
Every Maryland market ranked →The highest-scoring counties in Maryland for gyms and studios, numbered among those based in Maryland, with St. Mary’s County marked.
Top counties in Maryland
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Queen Anne’s County, MD | 79 | 33 | 16.6 | $668K | +8.8% | #85 of 2,088 |
| 2St. Mary’s County, MD | 74 | 40 | 9.4 | $1.2M | +2.4% | #150 of 2,088 |
| 3Charles County, MD | 74 | 90 | 14.8 | $785K | +5.9% | #167 of 2,088 |
| 4Prince George’s County, MD | 73 | 356 | 10.2 | $966K | +0.5% | #178 of 2,088 |
| 5Calvert County, MD | 71 | 48 | 14.3 | $877K | +1.7% | #230 of 2,088 |
| 6Cecil County, MD | 68 | 47 | 11.6 | $747K | +3.2% | #322 of 2,088 |
| 7Dorchester County, MD | 67 | 9 | 6.6 | $953K | +3.4% | #334 of 2,088 |
| 8Frederick County, MD | 67 | 169 | 16.2 | $736K | +11.0% | #352 of 2,088 |
| 9Washington County, MD | 63 | 62 | 10.4 | $731K | +2.0% | #494 of 2,088 |
| 10Harford County, MD | 60 | 138 | 13.6 | $783K | +2.0% | #581 of 2,088 |
Other business types in St. Mary’s County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
- Gyms, studios and classes74
- Gyms78
- Yoga, Pilates and fitness studios77
- Martial arts and dance studios75
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many gyms and studios are in St. Mary’s County, MD?
There are 40 gyms and studios on map listings in St. Mary’s County as of September 2026. 9 of them (23%) are chain locations. The listings count gyms, fitness studios, martial arts and dance studios. Official counts show 21 businesses with payroll classed as fitness centers and recreation instruction in 2023, up 5.0% from 2019.
How much do households in St. Mary’s County, MD spend on memberships, classes and admissions?
About $48.9M a year, or $1,152 per household. That is 17% above the U.S. average (an index of 117, where 100 is the U.S. average). Spread across the 40 gyms and studios on map listings, it comes to $1.2M per location. 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 gyms and studios?
St. Mary’s County has 9.4 gyms and studios per 10,000 households, 37% below the U.S. rate of 14.9. Spending per location is $1.2M, 85% above the U.S. figure of $662K. At the national ratio of gyms and studios to household spending, St. Mary’s County would have about 74, against 40 on map listings. There is one business with payroll in the industry for every 2,021 households, against one for every 1,641 across the U.S. The official count rose 5.0% from 2019 to 2023, against +8.2% for the U.S.
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 scores 74 for gyms and studios (upper middle), #150 of 2,088 scored counties.
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 gyms and studios 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 gyms and studios · 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.