Pets · County · Maryland
Pet stores in St. Mary’s County, MD
The pet stores in St. Mary’s County, MD, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 61 out of 100: Upper middle
Ranked #302 of 974 scored counties
#15 of 18 scored counties in Maryland
- Listings
- 12
- 8 chain locations (67%)
- Official establishments
- 4
- Businesses with payroll, 2023
- Household spending a year
- $51.1M
- On pets · $1,204 a household
- Spending per listing
- $4.3M
- 6% below the U.S.
- Listings per 10k households
- 2.8
- 40% above the U.S.
- Population, 2025
- 116,692
- +2.4% since 2020
See the pet stores around any address in St. Mary’s County
The site report maps the pet stores 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
Map listings as of September 2026 show 12 pet stores in St. Mary’s County. Chain locations make up 67% of them, against 38% across the U.S. That comes to 2.8 for every 10,000 households, 40% above the U.S. rate of 2.0.
Households in St. Mary’s County spend about $51.1M a year on pets, or $1,204 per household, 32% above the U.S. average. That is about $4.3M of household spending for each store on map listings, 6% below the U.S. figure of $4.5M. That spending covers all pets, which pet stores share with other businesses in the trade.
Official counts show 4 businesses with payroll classed as pet and pet supplies stores in St. Mary’s County in 2023. That is one for every 10,609 households, against one for every 13,024 across the U.S.
Between 2020 and 2025, the population of St. Mary’s County grew 2.4%, slower than the U.S. (+3.1%). St. Mary’s County scores 61 (upper middle) on the Groundwork market score for pet stores, ranking #302 of 974 scored counties and #15 of 18 scored counties in Maryland.
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 pets by the pet stores 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 | 2.8 | 1.6 | 2.0 |
| Spending per listing | $4.3M | $7.1M | $4.5M |
| Households per official establishment | 10,609 | 16,878 | 13,024 |
| Official establishment growth, 2019–2023 | n/a | −25.9% | −1.6% |
| Population growth, 2020–2025 | +2.4% | +1.4% | +3.1% |
| Spending per household on pets | $1,204 | $1,117 | $909 |
| Median household income | $119,446 | $103,678 | $80,734 |
| Groundwork market score | 61 | 81 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 3 → 4
- Employees, 2023
- 61
- Annual payroll, 2023
- $1.7M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 128 chain locations
- Listings at the U.S. rate for this spending
- 11The 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 pet and pet supplies stores 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 pet stores 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 cardPet stores across Maryland
Every Maryland market ranked →The highest-scoring counties in Maryland for pet stores, 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 |
|---|---|---|---|---|---|---|
| 1Frederick County, MD | 89 | 23 | 2.2 | $5.6M | +11.0% | #10 of 974 |
| 2Charles County, MD | 87 | 10 | 1.6 | $7.4M | +5.9% | #17 of 974 |
| 3Montgomery County, MD | 85 | 53 | 1.4 | $9.5M | +1.3% | #21 of 974 |
| 4Prince George’s County, MD | 83 | 29 | 0.8 | $13.1M | +0.5% | #30 of 974 |
| 5Calvert County, MD | 79 | 7 | 2.1 | $6.2M | +1.7% | #62 of 974 |
| 6Carroll County, MD | 77 | 16 | 2.5 | $4.8M | +2.2% | #81 of 974 |
| 7Anne Arundel County, MD | 75 | 44 | 2.0 | $6.3M | +1.7% | #96 of 974 |
| 8Cecil County, MD | 74 | 8 | 2.0 | $5.1M | +3.2% | #114 of 974 |
| 9Baltimore County, MD | 73 | 50 | 1.5 | $6.9M | −0.7% | #124 of 974 |
| 10Baltimore city, MD | 69 | 24 | 0.9 | $8.9M | −2.3% | #178 of 974 |
| 15St. Mary’s County, MD | 61 | 12 | 2.8 | $4.3M | +2.4% | #302 of 974 |
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
Health care
Pets
- Pet businesses71
- Veterinarians74
- Pet grooming and boarding76
- Pet stores61
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many pet stores are in St. Mary’s County, MD?
There are 12 pet stores on map listings in St. Mary’s County as of September 2026. 8 of them (67%) are chain locations. The listings count pet stores. Official counts show 4 businesses with payroll classed as pet and pet supplies stores in 2023.
How much do households in St. Mary’s County, MD spend on pets?
About $51.1M a year, or $1,204 per household. That is 32% above the U.S. average (an index of 132, where 100 is the U.S. average). Spread across the 12 pet stores on map listings, it comes to $4.3M per store. The spending figure covers all pets, not only pet stores. 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 pet stores?
St. Mary’s County has 2.8 pet stores per 10,000 households, 40% above the U.S. rate of 2.0. Spending per store is $4.3M, 6% below the U.S. figure of $4.5M. At the national ratio of pet stores to household spending, St. Mary’s County would have about 11, against 12 on map listings. There is one business with payroll in the industry for every 10,609 households, against one for every 13,024 across 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 61 for pet stores (upper middle), #302 of 974 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 pet stores 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 pet stores · 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.