Groundwork

Food and drink · County · Louisiana

Fast food and sandwich shops in St. Mary Parish, LA

Competitor counts, household spending and official business counts for fast food and sandwich shops in St. Mary Parish, LA, set against other counties and the U.S.

Groundwork market score · out of 100

Score 31 out of 100: Lower middle

Ranked #1,802 of 2,222 scored counties
#33 of 51 scored counties in Louisiana

Listings
24
17 chain locations (71%)
Official establishments
30
All limited-service restaurants · −11.8% since 2019
Household spending a year
$57.4M
On food away from home · $3,110 a household
Spending per listing
$2.4M
22% below the U.S.
Listings per 10k households
13.0
2% below the U.S.
Population, 2025
46,552
−5.3% since 2020

See the fast food and sandwich shops around any address in St. Mary Parish

The site report maps the fast food and sandwich 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 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

The Groundwork market score for fast food and sandwich shops in St. Mary Parish is 31 (lower middle), #1,802 of 2,222 scored counties and #33 of 51 scored counties in Louisiana. That puts it in the bottom quarter of counties.

Households in St. Mary Parish spend about $57.4M a year on food away from home, or $3,110 per household, 24% below the U.S. average. Spread across 24 fast food and sandwich shops, that is $2.4M per shop, 22% below the U.S. figure of $3.1M. The spending figure covers all food away from home, not only fast food and sandwich shops.

St. Mary Parish has 24 fast food and sandwich shops on map listings as of September 2026. Of those, 17 are chain locations, or 71%, against 79% across the U.S. Per 10,000 households, that is 13.0, 2% below the U.S. rate of 13.3.

Official counts show 30 businesses with payroll classed as limited-service restaurants in St. Mary Parish in 2023, down 11.8% from 2019. That is one for every 615 households, against one for every 478 across the U.S. That count covers all limited-service restaurants (pizza places included), not only fast food and sandwich shops. Population estimates show St. Mary Parish declined 5.3% from 2020 to 2025, 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 food away from home by the fast food and sandwich 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.

Fast food and sandwich shops in St. Mary Parish, LA compared with Louisiana and the U.S.
MeasureSt. Mary ParishLouisianaU.S.
Listings per 10k households13.014.713.3
Spending per listing$2.4M$2.4M$3.1M
Households per official establishment (all limited-service restaurants)615480478
Official establishment growth, 2019–2023−11.8%+5.1%+6.1%
Population growth, 2020–2025−5.3%−0.7%+3.1%
Spending per household on food away from home$3,110$3,469$4,070
Median household income$52,576$60,756$80,734
Groundwork market score3113

Official counts and lending

Businesses

Official establishments, 2019 to 2023
34 → 30All limited-service restaurants · −11.8% over the period
Employees, 2023
642
Annual payroll, 2023
$11.8M
One-person businesses, 2023
13All limited-service restaurants with no payroll
Map listings, September 2026
2417 chain locations
Listings at the U.S. rate for this spending
19The 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 limited-service restaurants 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. These official figures cover all limited-service restaurants, not only fast food and sandwich shops.

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 fast food and sandwich shops 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.

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Fast food and sandwich shops across Louisiana

Every Louisiana market ranked →

The highest-scoring counties in Louisiana for fast food and sandwich shops, numbered among those based in Louisiana, with St. Mary Parish marked.

Top counties in Louisiana

Counties in Louisiana ranked for fast food and sandwich shops by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1East Feliciana Parish, LA7357.8$4.8M−2.8%#273 of 2,222
2De Soto Parish, LA6698.6$3.7M+2.0%#511 of 2,222
3Evangeline Parish, LA6275.6$5.2M−1.0%#637 of 2,222
4St. Charles Parish, LA622010.7$3.7M−3.7%#644 of 2,222
5Livingston Parish, LA627013.1$2.9M+8.5%#665 of 2,222
6St. Tammany Parish, LA6114113.4$3M+5.3%#710 of 2,222
7Beauregard Parish, LA591510.9$3.3M+0.2%#786 of 2,222
8St. James Parish, LA58810.6$3.5M−5.9%#811 of 2,222
9Sabine Parish, LA5789.1$3.4M−1.2%#851 of 2,222
10Iberville Parish, LA56108.9$3.8M−1.6%#886 of 2,222
33St. Mary Parish, LA312413.0$2.4M−5.3%#1,802 of 2,222

Other business types in St. Mary Parish

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

Questions

How many fast food and sandwich shops are in St. Mary Parish, LA?

Map listings as of September 2026 show 24 fast food and sandwich shops in St. Mary Parish. 17 of them (71%) are chain locations. The listings count fast food, sandwich shops, delis and bagel shops. Official counts show 30 businesses with payroll classed as limited-service restaurants in 2023, down 11.8% from 2019. The official count takes in all limited-service restaurants, not only fast food and sandwich shops: pizza places are counted too. Official counts list 13 one-person businesses without payroll.

How much do households in St. Mary Parish, LA spend on food away from home?

About $57.4M a year, or $3,110 per household. That is 24% below the U.S. average (an index of 76, where 100 is the U.S. average). Spread across the 24 fast food and sandwich shops on map listings, it comes to $2.4M per shop. That spending covers all food away from home, which fast food and sandwich shops share with other businesses in the trade. 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 fast food and sandwich shops?

St. Mary Parish has 13.0 fast food and sandwich shops per 10,000 households, 2% below the U.S. rate of 13.3. Spending per shop is $2.4M, 22% below the U.S. figure of $3.1M. At the U.S. ratio of fast food and sandwich shops to household spending, St. Mary Parish would have about 19, against 24 on map listings. There is one business with payroll in the industry for every 615 households, against one for every 478 across the U.S. The official count fell 11.8% from 2019 to 2023, against +6.1% for 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 31 for fast food and sandwich shops (lower middle), #1,802 of 2,222 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 fast food and sandwich 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 fast food and sandwich shops · 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.