Auto · County · Louisiana
Car washes and detailers in St. Martin Parish, LA
Competitor counts, household spending and official business counts for car washes and detailers in St. Martin Parish, LA, set against other counties and the U.S.
Groundwork market score · out of 100
Score 29 out of 100: Lower middle
Ranked #1,225 of 1,451 scored counties
#16 of 31 scored counties in Louisiana
- Listings
- 8
- 1 chain location (13%)
- Official establishments
- n/a
- Fewer than 3, or not published
- Household spending a year
- $16.7M
- On vehicle maintenance and repairs · $853 a household
- Spending per listing
- $2.1M
- 17% below the U.S.
- Listings per 10k households
- 4.1
- 8% above the U.S.
- Population, 2025
- 51,106
- −1.0% since 2020
See the car washes and detailers around any address in St. Martin Parish
The site report maps the car washes and detailers 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.
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 car washes and detailers, St. Martin Parish has a Groundwork market score of 29 (lower middle): #1,225 of 1,451 scored counties and #16 of 31 scored counties in Louisiana. That puts it in the bottom quarter of counties.
Map listings as of September 2026 show 8 car washes and detailers in St. Martin Parish. One of them (13%) is a chain location, against 23% across the U.S. That comes to 4.1 for every 10,000 households, 8% above the U.S. rate of 3.8.
Households in St. Martin Parish spend about $16.7M a year on vehicle maintenance and repairs, or $853 per household, 11% below the U.S. average. That is about $2.1M of household spending for each location on map listings, 17% below the U.S. figure of $2.5M. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade.
There is no official count of businesses with payroll classed as car washes in St. Martin Parish: counts under 3 aren’t published. Between 2020 and 2025, the population of St. Martin Parish declined 1.0%, 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 vehicle maintenance and repairs by the car washes and detailers 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. Martin Parish | Louisiana | U.S. |
|---|---|---|---|
| Listings per 10k households | 4.1 | 4.1 | 3.8 |
| Spending per listing | $2.1M | $1.9M | $2.5M |
| Households per official establishment | n/a | 8,473 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +8.1% | +16.7% |
| Population growth, 2020–2025 | −1.0% | −0.7% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $853 | $802 | $958 |
| Median household income | $55,960 | $60,756 | $80,734 |
| Groundwork market score | 29 | 24 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- n/a
- Employees, 2023
- n/a
- Annual payroll, 2023
- n/a
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 81 chain location
- Listings at the U.S. rate for this spending
- 7The 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 car washes 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 car washes and detailers 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.
Free10 actions over 3 days, no cardCar washes and detailing across Louisiana
Every Louisiana market ranked →The highest-scoring counties in Louisiana for car washes and detailers, numbered among those based in Louisiana, with St. Martin Parish marked.
Top counties in Louisiana
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Livingston Parish, LA | 61 | 24 | 4.5 | $2M | +8.5% | #450 of 1,451 |
| 2Ascension Parish, LA | 53 | 30 | 6.3 | $1.6M | +6.4% | #665 of 1,451 |
| 3Orleans Parish, LA | 52 | 32 | 2.1 | $3M | −5.5% | #668 of 1,451 |
| 4St. Tammany Parish, LA | 52 | 58 | 5.5 | $1.7M | +5.3% | #692 of 1,451 |
| 5St. Landry Parish, LA | 45 | 7 | 2.2 | $3.4M | −1.9% | #842 of 1,451 |
| 6Bossier Parish, LA | 42 | 24 | 4.7 | $1.8M | +2.5% | #941 of 1,451 |
| 7Tangipahoa Parish, LA | 39 | 20 | 3.8 | $2.2M | +5.8% | #1,004 of 1,451 |
| 8Calcasieu Parish, LA | 39 | 32 | 4.1 | $2.1M | −3.7% | #1,007 of 1,451 |
| 9Beauregard Parish, LA | 36 | 6 | 4.4 | $2.1M | +0.2% | #1,078 of 1,451 |
| 10Rapides Parish, LA | 36 | 20 | 4.1 | $1.9M | −2.9% | #1,084 of 1,451 |
| 16St. Martin Parish, LA | 29 | 8 | 4.1 | $2.1M | −1.0% | #1,225 of 1,451 |
Other business types in St. Martin Parish
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
- Auto repair and car care51
- Auto repair shops50
- Collision repair and body shops27
- Car washes and detailing29
- Tire shops43
- Oil change and quick lube
- Gas stations24
- Insurance agencies74
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many car washes and detailers are in St. Martin Parish, LA?
There are 8 car washes and detailers on map listings in St. Martin Parish as of September 2026. One of them (13%) is a chain location. The listings count car washes and detailers. No official count is published for car washes in St. Martin Parish: counts under 3 are left out.
How much do households in St. Martin Parish, LA spend on vehicle maintenance and repairs?
About $16.7M a year, or $853 per household. That is 11% below the U.S. average (an index of 89, where 100 is the U.S. average). Spread across the 8 car washes and detailers on map listings, it comes to $2.1M per location. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers. 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 car washes and detailers?
St. Martin Parish has 4.1 car washes and detailers per 10,000 households, 8% above the U.S. rate of 3.8. Spending per location is $2.1M, 17% below the U.S. figure of $2.5M. At the national ratio of car washes and detailers to household spending, St. Martin Parish would have about 7, against 8 on map listings.
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 29 for car washes and detailers (lower middle), #1,225 of 1,451 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 car washes and detailers 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 car washes and detailers · 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.