Auto · County · Louisiana
Car washes and detailers in St. Tammany Parish, LA
The car washes and detailers in St. Tammany Parish, LA, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 52 out of 100: Upper middle
Ranked #692 of 1,451 scored counties
#4 of 31 scored counties in Louisiana
- Listings
- 58
- 9 chain locations (16%)
- Official establishments
- 10
- Businesses with payroll, 2023
- Household spending a year
- $97.5M
- On vehicle maintenance and repairs · $928 a household
- Spending per listing
- $1.7M
- 33% below the U.S.
- Listings per 10k households
- 5.5
- 45% above the U.S.
- Population, 2025
- 279,108
- +5.3% since 2020
See the car washes and detailers around any address in St. Tammany 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. Tammany 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
Map listings as of September 2026 show 58 car washes and detailers in St. Tammany Parish. 9 of them (16%) are chain locations, against 23% across the U.S. That is 5.5 per 10,000 households, 45% above the U.S. rate of 3.8.
Household spending on vehicle maintenance and repairs in St. Tammany Parish comes to about $97.5M a year: $928 per household, 3% below the U.S. average. Spread across 58 car washes and detailers, that is $1.7M per location, 33% 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.
The official count of businesses with payroll classed as car washes in St. Tammany Parish was 10 in 2023. That is one for every 10,508 households, against one for every 6,523 across the U.S.
Population estimates put the population change in St. Tammany Parish from 2020 to 2025 at +5.3%, faster than the U.S. (+3.1%). For car washes and detailers, St. Tammany Parish has a Groundwork market score of 52 (upper middle): #692 of 1,451 scored counties and #4 of 31 scored counties in Louisiana.
How St. Tammany 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. Tammany Parish | Louisiana | U.S. |
|---|---|---|---|
| Listings per 10k households | 5.5 | 4.1 | 3.8 |
| Spending per listing | $1.7M | $1.9M | $2.5M |
| Households per official establishment | 10,508 | 8,473 | 6,523 |
| Official establishment growth, 2019–2023 | n/a | +8.1% | +16.7% |
| Population growth, 2020–2025 | +5.3% | −0.7% | +3.1% |
| Spending per household on vehicle maintenance and repairs | $928 | $802 | $958 |
| Median household income | $81,202 | $60,756 | $80,734 |
| Groundwork market score | 52 | 24 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 9 → 10
- Employees, 2023
- 54
- Annual payroll, 2023
- $1.8M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 589 chain locations
- Listings at the U.S. rate for this spending
- 39The 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. Tammany 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. Tammany Parish
- Population, 2025 estimate
- 279,108+5.3% since 2020
- Households
- 105,082
- Median age
- 41.5
- Homes lived in by their owners
- 79%
- Vehicles per household
- 1.9
- Land area
- 845 sq. mi.
- People per square mile
- 322
- Median household income
- $81,202+17.9% vs. 2015–2019, before inflation
- Average household income
- $109,896
- Median home value
- $284,000
- Jobs located here
- 97,233
- Daytime population
- 260,408Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Tammany 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. Tammany 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. Tammany 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 |
Other business types in St. Tammany 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 shops54
- Collision repair and body shops49
- Car washes and detailing52
- Tire shops51
- Oil change and quick lube34
- Gas stations66
- Insurance agencies43
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. Tammany Parish, LA?
There are 58 car washes and detailers on map listings in St. Tammany Parish as of September 2026. 9 of them (16%) are chain locations. The listings count car washes and detailers. Official counts show 10 businesses with payroll classed as car washes in 2023.
How much do households in St. Tammany Parish, LA spend on vehicle maintenance and repairs?
About $97.5M a year, or $928 per household. That is 3% below the U.S. average (an index of 97, where 100 is the U.S. average). Spread across the 58 car washes and detailers on map listings, it comes to $1.7M 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 105,082 households in St. Tammany Parish and national spending patterns by income.
How does St. Tammany Parish, LA compare with the U.S. for car washes and detailers?
St. Tammany Parish has 5.5 car washes and detailers per 10,000 households, 45% above the U.S. rate of 3.8. Spending per location is $1.7M, 33% below the U.S. figure of $2.5M. At the national ratio of car washes and detailers to household spending, St. Tammany Parish would have about 39, against 58 on map listings. There is one business with payroll in the industry for every 10,508 households, against one for every 6,523 across the U.S.
How fast is St. Tammany Parish, LA growing?
Population estimates put St. Tammany Parish at 279,108 people in 2025, up 5.3% since 2020, faster than the U.S. (+3.1%). It has 105,082 households. Median household income in St. Tammany Parish is $81,202, in line with the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 17.9%, 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. Tammany Parish scores 52 for car washes and detailers (upper middle), #692 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. Tammany 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. Tammany Parish
Screening a site or an acquisition in St. Tammany 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. Tammany 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.