Groundwork

Auto · County · Tennessee

Car washes and detailers in Marshall County, TN

How Marshall County, TN compares with other counties and the U.S. for car washes and detailers: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 57 out of 100: Upper middle

Ranked #545 of 1,451 scored counties
#20 of 47 scored counties in Tennessee

Listings
6
1 chain location (17%)
Official establishments
3
Businesses with payroll, 2023
Household spending a year
$14.3M
On vehicle maintenance and repairs · $1,049 a household
Spending per listing
$2.4M
5% below the U.S.
Listings per 10k households
4.4
16% above the U.S.
Population, 2025
38,071
+10.5% since 2020

See the car washes and detailers around any address in Marshall County

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 Marshall County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

As of September 2026, map listings count 6 car washes and detailers in Marshall County. One of them (17%) is a chain location, against 23% across the U.S. Per 10,000 households, that is 4.4, 16% above the U.S. rate of 3.8.

Households in Marshall County spend about $14.3M a year on vehicle maintenance and repairs, or $1,049 per household, 10% above the U.S. average. That is about $2.4M of household spending for each location on map listings, 5% 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 Marshall County was 3 in 2023. That is one for every 4,541 households, against one for every 6,523 across the U.S.

Between 2020 and 2025, the population of Marshall County grew 10.5%, faster than the U.S. (+3.1%). Marshall County scores 57 (upper middle) on the Groundwork market score for car washes and detailers, ranking #545 of 1,451 scored counties and #20 of 47 scored counties in Tennessee.

How Marshall County compares

The same measures for Tennessee 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.

Car washes and detailing in Marshall County, TN compared with Tennessee and the U.S.
MeasureMarshall CountyTennesseeU.S.
Listings per 10k households4.43.93.8
Spending per listing$2.4M$2.4M$2.5M
Households per official establishment4,5417,6136,523
Official establishment growth, 2019–2023n/a+15.6%+16.7%
Population growth, 2020–2025+10.5%+5.6%+3.1%
Spending per household on vehicle maintenance and repairs$1,049$944$958
Median household income$71,049$69,595$80,734
Groundwork market score5759

Official counts and lending

Businesses

Official establishments, 2019 to 2023
3
Employees, 2023
11
Annual payroll, 2023
$174K
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
61 chain location
Listings at the U.S. rate for this spending
6The 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 Marshall County, 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 Marshall County

Population, 2025 estimate
38,071+10.5% since 2020
Households
13,622
Median age
39.1
Homes lived in by their owners
77%
Vehicles per household
2.1
Land area
376 sq. mi.
People per square mile
96
Median household income
$71,049+33.6% vs. 2015–2019, before inflation
Average household income
$95,058
Median home value
$279,800
Jobs located here
9,774
Daytime population
28,975Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Marshall County?

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 Marshall County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Car washes and detailing across Tennessee

Every Tennessee market ranked →

The highest-scoring counties in Tennessee for car washes and detailers, numbered among those based in Tennessee, with Marshall County marked.

Top counties in Tennessee

Counties in Tennessee ranked for car washes and detailers by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Williamson County, TN89283.0$3.8M+9.0%#13 of 1,451
2Loudon County, TN8683.3$3.3M+15.6%#31 of 1,451
3Roane County, TN7873.1$3.4M+7.0%#78 of 1,451
4Bradley County, TN76153.5$2.8M+6.1%#113 of 1,451
5Jefferson County, TN7283.7$2.8M+9.3%#187 of 1,451
6Cumberland County, TN7182.8$3.2M+8.0%#202 of 1,451
7Lawrence County, TN7163.5$2.9M+6.2%#210 of 1,451
8Bedford County, TN7194.6$2.4M+9.7%#218 of 1,451
9Tipton County, TN6852.2$4.7M+2.0%#272 of 1,451
10Dickson County, TN6794.1$2.7M+7.7%#303 of 1,451
20Marshall County, TN5764.4$2.4M+10.5%#545 of 1,451

Other business types in Marshall County

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

Questions

How many car washes and detailers are in Marshall County, TN?

Marshall County has 6 car washes and detailers on map listings as of September 2026. One of them (17%) is a chain location. The listings count car washes and detailers. Official counts show 3 businesses with payroll classed as car washes in 2023.

How much do households in Marshall County, TN spend on vehicle maintenance and repairs?

About $14.3M a year, or $1,049 per household. That is 10% above the U.S. average (an index of 110, where 100 is the U.S. average). Spread across the 6 car washes and detailers on map listings, it comes to $2.4M 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 13,622 households in Marshall County and national spending patterns by income.

How does Marshall County, TN compare with the U.S. for car washes and detailers?

Marshall County has 4.4 car washes and detailers per 10,000 households, 16% above the U.S. rate of 3.8. Spending per location is $2.4M, 5% below the U.S. figure of $2.5M. The count on map listings matches the U.S. ratio of car washes and detailers to household spending. There is one business with payroll in the industry for every 4,541 households, against one for every 6,523 across the U.S.

How fast is Marshall County, TN growing?

Population estimates put Marshall County at 38,071 people in 2025, up 10.5% since 2020, faster than the U.S. (+3.1%). It has 13,622 households. Median household income in Marshall County is $71,049, 12% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.6%, 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. Marshall County scores 57 for car washes and detailers (upper middle), #545 of 1,451 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Marshall County. 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 Marshall County

Screening a site or an acquisition in Marshall County?

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 Marshall County. 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.