Groundwork

Groceries and convenience · County · Louisiana

Convenience stores in St. Martin Parish, LA

How St. Martin Parish, LA compares with other counties and the U.S. for convenience stores: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 30 out of 100: Lower middle

Ranked #1,803 of 2,261 scored counties
#25 of 53 scored counties in Louisiana

Listings
28
10 chain locations (36%)
Official establishments
6
Businesses with payroll, 2023
Household spending a year
$108.6M
On groceries · $5,549 a household
Spending per listing
$3.9M
51% below the U.S.
Listings per 10k households
14.3
79% above the U.S.
Population, 2025
51,106
−1.0% since 2020

See the convenience stores around any address in St. Martin 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. Martin Parish. 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

For convenience stores, St. Martin Parish has a Groundwork market score of 30 (lower middle): #1,803 of 2,261 scored counties and #25 of 53 scored counties in Louisiana. That puts it in the bottom quarter of counties.

As of September 2026, map listings count 28 convenience stores in St. Martin Parish. Chain locations make up 36% of them, against 60% across the U.S. That comes to 14.3 for every 10,000 households, 79% above the U.S. rate of 8.0.

Households in St. Martin Parish spend about $108.6M a year on groceries, or $5,549 per household, 12% below the U.S. average. That works out to $3.9M per store, 51% 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 6 businesses with payroll in St. Martin Parish classed as convenience stores. That is one for every 3,263 households, against one for every 3,493 across the U.S. Population estimates show St. Martin Parish declined 1.0% from 2020 to 2025, against +3.1% for the U.S.

How St. Martin 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.

Convenience stores in St. Martin Parish, LA compared with Louisiana and the U.S.
MeasureSt. Martin ParishLouisianaU.S.
Listings per 10k households14.311.68.0
Spending per listing$3.9M$4.9M$7.9M
Households per official establishment3,2632,9783,493
Official establishment growth, 2019–2023n/a+25.7%+22.0%
Population growth, 2020–2025−1.0%−0.7%+3.1%
Spending per household on groceries$5,549$5,704$6,319
Median household income$55,960$60,756$80,734
Groundwork market score3012

Official counts and lending

Businesses

Official establishments, 2019 to 2023
5 → 6
Employees, 2023
19
Annual payroll, 2023
$366K
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
2810 chain locations
Listings at the U.S. rate for this spending
14The 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. Martin 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. Martin Parish

Population, 2025 estimate
51,106−1.0% since 2020
Households
19,579
Median age
40.0
Homes lived in by their owners
78%
Vehicles per household
1.9
Land area
738 sq. mi.
People per square mile
70
Median household income
$55,960+15.0% vs. 2015–2019, before inflation
Average household income
$77,449
Median home value
$164,200
Jobs located here
13,916
Daytime population
42,150Residents who don’t work, plus everyone whose job is here

Looking at a specific site in St. Martin 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. Martin Parish. Signed out, you see a blurred preview; on an account, each report is one action.

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Convenience stores across Louisiana

Every Louisiana market ranked →

The highest-scoring counties in Louisiana for convenience stores, numbered among those based in Louisiana, with St. Martin Parish marked.

Top counties in Louisiana

Counties in Louisiana ranked for convenience stores by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Ascension Parish, LA78388.0$8.1M+6.4%#231 of 2,261
2St. Tammany Parish, LA76888.4$7.5M+5.3%#283 of 2,261
3Bossier Parish, LA63438.5$6.9M+2.5%#657 of 2,261
4Livingston Parish, LA636912.9$4.7M+8.5%#666 of 2,261
5West Baton Rouge Parish, LA571210.9$5.6M+5.5%#877 of 2,261
6Jefferson Parish, LA551206.8$8.6M−1.9%#921 of 2,261
7De Soto Parish, LA5187.6$7.1M+2.0%#1,077 of 2,261
8St. Bernard Parish, LA51148.6$6.5M+4.1%#1,081 of 2,261
9St. Charles Parish, LA492312.4$5M−3.7%#1,167 of 2,261
10Lafourche Parish, LA483910.3$5.6M−2.0%#1,199 of 2,261
25St. Martin Parish, LA302814.3$3.9M−1.0%#1,803 of 2,261

Other business types in St. Martin Parish

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

Questions

How many convenience stores are in St. Martin Parish, LA?

St. Martin Parish has 28 convenience stores on map listings as of September 2026. 10 of them (36%) are chain locations. The listings count convenience stores without fuel. Official counts show 6 businesses with payroll classed as convenience stores in 2023.

How much do households in St. Martin Parish, LA spend on groceries?

About $108.6M a year, or $5,549 per household. That is 12% below the U.S. average (an index of 88, where 100 is the U.S. average). Spread across the 28 convenience stores on map listings, it comes to $3.9M per store. The spending figure covers all groceries, not only convenience stores. It is estimated from the incomes of the 19,579 households in St. Martin Parish and national spending patterns by income.

How does St. Martin Parish, LA compare with the U.S. for convenience stores?

St. Martin Parish has 14.3 convenience stores per 10,000 households, 79% above the U.S. rate of 8.0. Spending per store is $3.9M, 51% below the U.S. figure of $7.9M. At the national ratio of convenience stores to household spending, St. Martin Parish would have about 14, against 28 on map listings. There is one business with payroll in the industry for every 3,263 households, against one for every 3,493 across the U.S.

How fast is St. Martin Parish, LA growing?

Population estimates put St. Martin Parish at 51,106 people in 2025, down 1.0% since 2020, against +3.1% for the U.S. It has 19,579 households. Median household income in St. Martin Parish is $55,960, 31% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 15.0%, 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. Martin Parish scores 30 for convenience stores (lower middle), #1,803 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. Martin 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. Martin Parish

Screening a site or an acquisition in St. Martin 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. Martin 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.