Groundwork

Auto · Small-town market · South Dakota

Car washes and detailers in the Spearfish, SD area

The car washes and detailers in the Spearfish, SD area, the household spending behind them and how the market ranks against other small-town markets.

Groundwork market score · out of 100

Score 52 out of 100: Upper middle

Ranked #206 of 441 scored small-town markets
#4 of 7 scored small-town markets based in South Dakota

Listings
7
4 chain locations (57%)
Official establishments
6
Businesses with payroll, 2023
Household spending a year
$14M
On vehicle maintenance and repairs · $1,162 a household
Spending per listing
$2M
21% below the U.S.
Listings per 10k households
5.8
53% above the U.S.
Population, 2025
29,459
+14.0% since 2020

See the car washes and detailers around any address in the Spearfish area

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 the Spearfish area. 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

Household spending on vehicle maintenance and repairs in the Spearfish area comes to about $14M a year: $1,162 per household, 21% above the U.S. average. That works out to $2M per location, 21% below the U.S. figure of $2.5M. The spending figure covers all vehicle maintenance and repairs, not only car washes and detailers.

There are 7 car washes and detailers on map listings in the Spearfish area as of September 2026. Chain locations make up 57% of them, against 23% across the U.S. That comes to 5.8 for every 10,000 households, 53% above the U.S. rate of 3.8.

In 2023, official counts showed 6 businesses with payroll in the Spearfish area classed as car washes. That is one for every 2,009 households, against one for every 6,523 across the U.S.

Between 2020 and 2025, the population of the Spearfish area grew 14.0%, faster than the U.S. (+3.1%). The Groundwork market score for car washes and detailers in the Spearfish area is 52 (upper middle), #206 of 441 scored small-town markets and #4 of 7 scored small-town markets based in South Dakota.

How the Spearfish area compares

The same measures for South Dakota 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 Spearfish, SD area compared with South Dakota and the U.S.
MeasureSpearfish areaSouth DakotaU.S.
Listings per 10k households5.84.93.8
Spending per listing$2M$2.4M$2.5M
Households per official establishment2,0095,7126,523
Official establishment growth, 2019–2023n/a+14.3%+16.7%
Population growth, 2020–2025+14.0%+5.3%+3.1%
Spending per household on vehicle maintenance and repairs$1,162$1,189$958
Median household income$73,384$75,081$80,734
Groundwork market score5256

Official counts and lending

Businesses

Official establishments, 2019 to 2023
6
Employees, 2023
16
Annual payroll, 2023
$206K
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
74 chain locations
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 the Spearfish area, 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 the Spearfish area

Population, 2025 estimate
29,459+14.0% since 2020
Households
12,054
Median age
44.5
Homes lived in by their owners
65%
Vehicles per household
2.1
Land area
800 sq. mi.
People per square mile
34
Median household income
$73,384+39.4% vs. 2015–2019, before inflation
Average household income
$94,174
Median home value
$346,500
Jobs located here
13,155
Daytime population
27,824Residents who don’t work, plus everyone whose job is here

Looking at a specific site in the Spearfish area?

These figures cover the whole small-town market. 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 the Spearfish area. Signed out, you see a blurred preview; on an account, each report is one action.

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Car washes and detailing across South Dakota

Every South Dakota market ranked →

The highest-scoring small-town markets in South Dakota for car washes and detailers, numbered among those based in South Dakota, with the Spearfish area marked.

Top small-town markets in South Dakota

Small-town markets in South Dakota ranked for car washes and detailers by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Brookings, SD7875.1$2.3M+9.6%#25 of 441
2Yankton, SD5566.2$1.9M+1.5%#181 of 441
3Watertown, SD5486.4$1.8M+4.3%#186 of 441
4Spearfish, SD5275.8$2M+14.0%#206 of 441
5Pierre, SD4555.9$1.9M−0.5%#262 of 441
6Aberdeen, SD41116.1$1.8M−1.5%#297 of 441
7Mitchell, SD35109.1$1.3M+0.6%#343 of 441

Other business types in the Spearfish area

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

Questions

How many car washes and detailers are in the Spearfish, SD area?

As of September 2026, map listings count 7 car washes and detailers in the Spearfish area. 4 of them (57%) are chain locations. The listings count car washes and detailers. Official counts show 6 businesses with payroll classed as car washes in 2023.

How much do households in the Spearfish, SD area spend on vehicle maintenance and repairs?

About $14M a year, or $1,162 per household. That is 21% above the U.S. average (an index of 121, where 100 is the U.S. average). Spread across the 7 car washes and detailers on map listings, it comes to $2M per location. That spending covers all vehicle maintenance and repairs, which car washes and detailers share with other businesses in the trade. It is estimated from the incomes of the 12,054 households in the Spearfish area and national spending patterns by income.

How does the Spearfish, SD area compare with the U.S. for car washes and detailers?

The Spearfish area has 5.8 car washes and detailers per 10,000 households, 53% above the U.S. rate of 3.8. Spending per location is $2M, 21% below the U.S. figure of $2.5M. At the U.S. ratio of car washes and detailers to household spending, the Spearfish area would have about 6, against 7 on map listings. There is one business with payroll in the industry for every 2,009 households, against one for every 6,523 across the U.S.

How fast is the Spearfish, SD area growing?

Population estimates put the Spearfish area at 29,459 people in 2025, up 14.0% since 2020, faster than the U.S. (+3.1%). It has 12,054 households. The median household income in the Spearfish area is $73,384 a year, 9% below the U.S. median of $80,734. That rose 39.4% from the 2015–2019 survey, 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. A small-town market is a town of 10,000 to 50,000 people and the county or counties tied to it by commuting. 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. The Spearfish area scores 52 for car washes and detailers (upper middle), #206 of 441 scored small-town markets.

How can I see the market around a specific site?

Run a Groundwork site report on an address in the Spearfish area. 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 the Spearfish area

Screening a site or an acquisition in the Spearfish area?

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 the Spearfish area. 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.