Groceries and convenience · County · Louisiana
Convenience stores in St. Mary Parish, LA
Competitor counts, household spending and official business counts for convenience stores in St. Mary Parish, LA, set against other counties and the U.S.
Groundwork market score · out of 100
Score 14 out of 100: Low
Ranked #2,133 of 2,261 scored counties
#42 of 53 scored counties in Louisiana
- Listings
- 27
- 9 chain locations (33%)
- Official establishments
- 10
- Businesses with payroll, 2023
- Household spending a year
- $99.4M
- On groceries · $5,381 a household
- Spending per listing
- $3.7M
- 53% below the U.S.
- Listings per 10k households
- 14.6
- 83% above the U.S.
- Population, 2025
- 46,552
- −5.3% since 2020
See the convenience stores around any address in St. Mary Parish
The site report maps the convenience 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 Parish. 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 convenience stores, St. Mary Parish has a Groundwork market score of 14 (low): #2,133 of 2,261 scored counties and #42 of 53 scored counties in Louisiana. That puts it in the bottom quarter of counties.
Map listings as of September 2026 show 27 convenience stores in St. Mary Parish. Chain locations make up 33% of them, against 60% across the U.S. Per 10,000 households, that is 14.6, 83% above the U.S. rate of 8.0.
At $5,381 per household (15% below the U.S. average), households in St. Mary Parish spend about $99.4M a year on groceries. That is about $3.7M of household spending for each store on map listings, 53% below the U.S. figure of $7.9M. That spending covers all groceries, which convenience stores share with other businesses in the trade.
In 2023, official counts showed 10 businesses with payroll in St. Mary Parish classed as convenience stores. That is one for every 1,846 households, against one for every 3,493 across the U.S. Between 2020 and 2025, the population of St. Mary Parish declined 5.3%, against +3.1% for the U.S.
How St. Mary Parish compares
The same measures for Louisiana and the whole U.S. Spending per listing divides a year of household spending on all groceries by the convenience 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 Parish | Louisiana | U.S. |
|---|---|---|---|
| Listings per 10k households | 14.6 | 11.6 | 8.0 |
| Spending per listing | $3.7M | $4.9M | $7.9M |
| Households per official establishment | 1,846 | 2,978 | 3,493 |
| Official establishment growth, 2019–2023 | n/a | +25.7% | +22.0% |
| Population growth, 2020–2025 | −5.3% | −0.7% | +3.1% |
| Spending per household on groceries | $5,381 | $5,704 | $6,319 |
| Median household income | $52,576 | $60,756 | $80,734 |
| Groundwork market score | 14 | 12 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 8 → 10
- Employees, 2023
- 26
- Annual payroll, 2023
- $688K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 279 chain locations
- Listings at the U.S. rate for this spending
- 13The 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 convenience stores in St. Mary Parish, 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 Parish
- Population, 2025 estimate
- 46,552−5.3% since 2020
- Households
- 18,463
- Median age
- 39.8
- Homes lived in by their owners
- 69%
- Vehicles per household
- 1.6
- Land area
- 559 sq. mi.
- People per square mile
- 86
- Median household income
- $52,576+29.9% vs. 2015–2019, before inflation
- Average household income
- $71,245
- Median home value
- $138,900
- Jobs located here
- 20,344
- Daytime population
- 47,916Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Mary Parish?
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 convenience stores on map listings by name and distance.
Or open the report at the center of St. Mary Parish. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardConvenience stores across Louisiana
Every Louisiana market ranked →The highest-scoring counties in Louisiana for convenience stores, numbered among those based in Louisiana, with St. Mary Parish marked.
Top counties in Louisiana
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Ascension Parish, LA | 78 | 38 | 8.0 | $8.1M | +6.4% | #231 of 2,261 |
| 2St. Tammany Parish, LA | 76 | 88 | 8.4 | $7.5M | +5.3% | #283 of 2,261 |
| 3Bossier Parish, LA | 63 | 43 | 8.5 | $6.9M | +2.5% | #657 of 2,261 |
| 4Livingston Parish, LA | 63 | 69 | 12.9 | $4.7M | +8.5% | #666 of 2,261 |
| 5West Baton Rouge Parish, LA | 57 | 12 | 10.9 | $5.6M | +5.5% | #877 of 2,261 |
| 6Jefferson Parish, LA | 55 | 120 | 6.8 | $8.6M | −1.9% | #921 of 2,261 |
| 7De Soto Parish, LA | 51 | 8 | 7.6 | $7.1M | +2.0% | #1,077 of 2,261 |
| 8St. Bernard Parish, LA | 51 | 14 | 8.6 | $6.5M | +4.1% | #1,081 of 2,261 |
| 9St. Charles Parish, LA | 49 | 23 | 12.4 | $5M | −3.7% | #1,167 of 2,261 |
| 10Lafourche Parish, LA | 48 | 39 | 10.3 | $5.6M | −2.0% | #1,199 of 2,261 |
| 42St. Mary Parish, LA | 14 | 27 | 14.6 | $3.7M | −5.3% | #2,133 of 2,261 |
Other business types in St. Mary Parish
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
- Grocery and convenience stores11
- Grocery stores11
- Convenience stores14
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many convenience stores are in St. Mary Parish, LA?
There are 27 convenience stores on map listings in St. Mary Parish as of September 2026. 9 of them (33%) are chain locations. The listings count convenience stores without fuel. Official counts show 10 businesses with payroll classed as convenience stores in 2023.
How much do households in St. Mary Parish, LA spend on groceries?
About $99.4M a year, or $5,381 per household. That is 15% below the U.S. average (an index of 85, where 100 is the U.S. average). Spread across the 27 convenience stores on map listings, it comes to $3.7M per store. The spending figure covers all groceries, not only convenience stores. It is estimated from the incomes of the 18,463 households in St. Mary Parish and national spending patterns by income.
How does St. Mary Parish, LA compare with the U.S. for convenience stores?
St. Mary Parish has 14.6 convenience stores per 10,000 households, 83% above the U.S. rate of 8.0. Spending per store is $3.7M, 53% below the U.S. figure of $7.9M. At the national ratio of convenience stores to household spending, St. Mary Parish would have about 13, against 27 on map listings. There is one business with payroll in the industry for every 1,846 households, against one for every 3,493 across the U.S.
How fast is St. Mary Parish, LA growing?
Population estimates put St. Mary Parish at 46,552 people in 2025, down 5.3% since 2020, against +3.1% for the U.S. It has 18,463 households. Median household income in St. Mary Parish is $52,576, 35% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 29.9%, 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 Parish scores 14 for convenience stores (low), #2,133 of 2,261 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in St. Mary Parish. It maps the convenience 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 convenience stores · All 56 business types in St. Mary Parish
Screening a site or an acquisition in St. Mary Parish?
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 Parish. 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.