County profile · Louisiana
St. Martin Parish, LA market data
How St. Martin Parish compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 51,106
- −1.0% since 2020
- Households
- 19,579
- Median household income
- $55,960
- +15.0% vs. 2015–2019, before inflation
- Median home value
- $164,200
- Jobs located here
- 13,916
- Highest market score
- 74
- Insurance agencies, #351 of 2,272 scored counties
A site report maps the competitors on map listings around any address in St. Martin Parish by name and distance, and the households and spending within reach. 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.
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
St. Martin Parish has an estimated 51,106 people and 19,579 households. Population estimates show St. Martin Parish declined 1.0% from 2020 to 2025, against +3.1% for the U.S. 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.
Relative to the U.S., household spending in St. Martin Parish runs highest on vehicle insurance (an index of 122, where 100 is the U.S. average) and lowest on memberships, classes and admissions (58).
Of the business types scored in St. Martin Parish, insurance agencies (74), real estate agents and brokers (71) and real estate businesses (69) have the highest Groundwork market scores. For insurance agencies, that ranks #351 of 2,272 scored counties.
St. Martin Parish is part of the Lafayette metro area. Against the U.S., map listings per household run highest for gas stations (twice the U.S. rate) and lowest for real estate businesses (87% below the U.S. rate).
All 56 business types in St. Martin Parish
Highest Groundwork market score first. Each score compares St. Martin Parish with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Insurance agencies | 74 | #351 of 2,272 | 16 | 8.2 | $2.9M | 233 | 8 |
| Real estate agents and brokers | 71 | #165 of 2,176 | 8 | 4.1 | Index only | 613 | 4 |
| Real estate | 69 | #220 of 2,229 | 10 | 5.1 | Index only | 617 | 9 |
| Pizza | 64 | #496 of 2,090 | 6 | 3.1 | $10.7M | 211 | 27 |
| Lawn, cleaning and pest control | 63 | #388 of 1,771 | 12 | 6.1 | $2.1M | 128 | 18 |
| Dentists and orthodontists | 62 | #496 of 1,886 | 10 | 5.1 | $1.9M | 198 | 7 |
| Home repair trades | 61 | #511 of 2,057 | 8 | 4.1 | $6.2M | 253 | 26 |
| Salons, barbers and spas | 60 | #640 of 2,385 | 49 | 25.0 | $315K | 148 | 4 |
| Doctors, dentists and clinics | 59 | #768 of 2,394 | 54 | 27.6 | $361K | 237 | 27 |
| Landscaping and lawn care | 58 | #506 of 1,493 | 10 | 5.1 | $2.6M | 88 | 9 |
| HVAC and plumbing | 57 | #592 of 1,707 | 5 | 2.6 | $9.8M | 207 | 16 |
| Clothing and shoe stores | 55 | #842 of 2,087 | 12 | 6.1 | $2.7M | 215 | Under 3 |
| Pet businesses | 55 | #855 of 2,200 | 16 | 8.2 | $953K | 108 | Under 3 |
| Clothing, shoes and laundry | 54 | #931 of 2,210 | 18 | 9.2 | $1.8M | 207 | Under 3 |
| Spas and skin care | 53 | #755 of 1,769 | 8 | 4.1 | $1.9M | 220 | Under 3 |
| Child care and preschools | 52 | #769 of 1,611 | 8 | 4.1 | $901K | 90 | 6 |
| Hair salons | 52 | #1,041 of 2,339 | 24 | 12.3 | $642K | 149 | Under 3 |
| Auto repair and car care | 51 | #1,179 of 2,401 | 59 | 30.1 | $283K | 105 | 19 |
| Auto repair shops | 50 | #1,178 of 2,378 | 34 | 17.4 | $491K | 110 | 15 |
| Primary care and pediatrics | 47 | #938 of 1,656 | 11 | 5.6 | $1.8M | 100 | 13 |
| Fast food and sandwich shops | 47 | #1,262 of 2,222 | 23 | 11.7 | $2.8M | 92 | 27 |
| Restaurants and cafes | 47 | #1,316 of 2,405 | 176 | 89.9 | $366K | 99 | 52 |
| Sit-down restaurants | 45 | #1,420 of 2,405 | 93 | 47.5 | $693K | 104 | 23 |
| Pet grooming and boarding | 43 | #879 of 1,461 | 7 | 3.6 | $2.2M | 86 | Under 3 |
| Tire shops | 43 | #945 of 1,530 | 6 | 3.1 | $2.8M | 111 | Under 3 |
| Coffee shops and cafes | 43 | #1,265 of 2,063 | 14 | 7.2 | $4.6M | 124 | Under 3 |
| Martial arts and dance studios | 42 | #879 of 1,334 | 5 | 2.6 | $2.3M | 112 | Under 3 |
| Nail salons | 37 | #1,000 of 1,328 | 8 | 4.1 | $1.9M | 115 | Under 3 |
| Bakeries and dessert shops | 30 | #1,609 of 1,889 | 16 | 8.2 | $4M | 97 | Under 3 |
| Convenience stores | 30 | #1,803 of 2,261 | 28 | 14.3 | $3.9M | 49 | 6 |
| Car washes and detailing | 29 | #1,225 of 1,451 | 8 | 4.1 | $2.1M | 83 | Under 3 |
| Gyms, studios and classes | 29 | #1,813 of 2,088 | 19 | 9.7 | $592K | 89 | Under 3 |
| Barbershops | 28 | #1,129 of 1,356 | 9 | 4.6 | $1.7M | 91 | Under 3 |
| Collision repair and body shops | 27 | #1,158 of 1,327 | 9 | 4.6 | $1.9M | 60 | 5 |
| Funeral homes | 24 | #1,334 of 1,472 | 9 | 4.6 | $293K | 43 | Under 3 |
| Gas stations | 24 | #2,139 of 2,358 | 43 | 22.0 | $1.3M | 53 | 33 |
| Grocery stores | 21 | #1,866 of 2,070 | 21 | 10.7 | $5.2M | 56 | 12 |
| Grocery and convenience stores | 20 | #2,218 of 2,402 | 65 | 33.2 | $1.7M | 49 | 18 |
| Gyms | 18 | #1,680 of 1,792 | 14 | 7.2 | $804K | 62 | Under 3 |
| Physical therapy | Not scored | Not scored | 4 | 2.0 | $4.9M | 203 | 4 |
| Veterinarians | Not scored | Not scored | 4 | 2.0 | $3.8M | 140 | Under 3 |
| Pet stores | Not scored | Not scored | 3 | 1.5 | $5.1M | 112 | Under 3 |
| Chiropractors | Not scored | Not scored | 2 | 1.0 | $9.7M | Too few | Under 3 |
| Laundromats | Not scored | Not scored | 2 | 1.0 | $16.4M | Too few | Under 3 |
| Roofing and gutters | Not scored | Not scored | 2 | 1.0 | $24.6M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 1 | 0.5 | $32.8M | Too few | Under 3 |
| Electricians | Not scored | Not scored | 1 | 0.5 | $49.2M | Too few | 10 |
| House cleaning | Not scored | Not scored | 1 | 0.5 | $25.7M | Too few | 5 |
| Mortgage brokers and lenders | Not scored | Not scored | 1 | 0.5 | Index only | Too few | Under 3 |
| Optometrists and eye care | Not scored | Not scored | 1 | 0.5 | $19.5M | Too few | Under 3 |
| Pest control | Not scored | Not scored | 1 | 0.5 | $25.7M | Too few | 4 |
| Property management | Not scored | Not scored | 1 | 0.5 | Index only | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in St. Martin Parish
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $16.7M | $853 | 89 |
| Gasoline and other fuels | $54.8M | $2,801 | 108 |
| Food away from home | $64.5M | $3,293 | 81 |
| Groceries | $108.6M | $5,549 | 88 |
| Personal care products and services | $15.4M | $787 | 78 |
| Child care and other personal services | $7.2M | $368 | 63 |
| Memberships, classes and admissions | $11.3M | $575 | 58 |
| Medical and dental services | $19.5M | $996 | 77 |
| Pets | $15.2M | $779 | 86 |
| Clothing, shoes and related services | $32.8M | $1,677 | 82 |
| Vehicle insurance | $46.8M | $2,389 | 122 |
| Home repairs, maintenance and insurance | $49.2M | $2,515 | 83 |
| Lawn care, cleaning and other household services | $25.7M | $1,313 | 93 |
| Rent and homeowner costs | $267.3M | $13,655 | 82 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
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 competitors on map listings by name and distance, for any of the 56 business types.
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.
Free10 actions over 3 days, no cardRelated markets
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- Iberia Parish, LA68,599 people
- Vermilion Parish, LA57,123 people
- St. Landry Parish, LA81,670 people
- Acadia Parish, LA56,955 people
- Pointe Coupee Parish, LA20,217 people
- Iberville Parish, LA29,815 people
- West Baton Rouge Parish, LA27,974 people
Questions
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 rose 15.0% from the 2015–2019 survey, before inflation.
How much do households in St. Martin Parish, LA spend?
Households in St. Martin Parish spend about $267.3M a year on rent and homeowner costs, $108.6M on groceries and $64.5M on food away from home. Set against the U.S., households in St. Martin Parish spend the most on vehicle insurance (an index of 122, where 100 is the U.S. average) and the least on memberships, classes and admissions (58).
Which business types have the highest market scores in St. Martin Parish, LA?
The highest Groundwork market scores in St. Martin Parish are for insurance agencies (74), real estate agents and brokers (71) and real estate businesses (69). St. Martin Parish ranks #351 of 2,272 scored counties for insurance agencies.
How does St. Martin Parish, LA compare with the U.S.?
The median household income in St. Martin Parish is $55,960 a year, 31% below the U.S. median of $80,734. The population fell 1.0% from 2020 to 2025, against +3.1% for the U.S. The median home value is $164,200, against $332,700 for the U.S. For its number of households, St. Martin Parish has the most map listings, relative to the U.S., for gas stations (twice the U.S. rate) and the fewest for real estate businesses (87% below the U.S. rate).
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. 39 of the 56 business types have a score in St. Martin Parish, each ranked against other 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 competitors 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.
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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.