Groundwork

Auto · County · Iowa

Car washes and detailers in Humboldt County, IA

Competitor counts, household spending and official business counts for car washes and detailers in Humboldt County, IA, set against other counties and the U.S.

Groundwork market score

Not scored

Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.

Listings
1
0 chain locations (0%)
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$5.1M
On vehicle maintenance and repairs · $1,218 a household
Spending per listing
$5.1M
Too few listings to compare
Listings per 10k households
2.4
Too few listings to compare
Population, 2025
9,409
−2.0% since 2020

See the car washes and detailers around any address in Humboldt 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 Humboldt 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 1 car wash or detailer in Humboldt County. That is 2.4 per 10,000 households.

At $1,218 per household (27% above the U.S. average), households in Humboldt County spend about $5.1M a year on vehicle maintenance and repairs. That works out to $5.1M per location. 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 Humboldt County: counts under 3 aren’t published.

Population estimates show Humboldt County declined 2.0% from 2020 to 2025, against +3.1% for the U.S. Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.

How Humboldt County compares

The same measures for Iowa 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 Humboldt County, IA compared with Iowa and the U.S.
MeasureHumboldt CountyIowaU.S.
Listings per 10k households2.45.13.8
Spending per listing$5.1M$2.2M$2.5M
Households per official establishmentn/a4,3576,523
Official establishment growth, 2019–2023n/a+17.1%+16.7%
Population growth, 2020–2025−2.0%+1.5%+3.1%
Spending per household on vehicle maintenance and repairs$1,218$1,134$958
Median household income$71,946$75,059$80,734
Groundwork market scoreNot scored34

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
10 chain locations
Listings at the U.S. rate for this spending
2The 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 Humboldt 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 Humboldt County

Population, 2025 estimate
9,409−2.0% since 2020
Households
4,219
Median age
42.9
Homes lived in by their owners
77%
Vehicles per household
2.1
Land area
434 sq. mi.
People per square mile
22
Median household income
$71,946
Average household income
$92,749
Median home value
$155,800
Jobs located here
3,646
Daytime population
8,805Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Humboldt 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 Humboldt 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 Iowa

Every Iowa market ranked →

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

Top counties in Iowa

Counties in Iowa ranked for car washes and detailers by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Warren County, IA9652.4$5.2M+9.0%#1 of 1,451
2Marion County, IA6086.0$2.1M+2.3%#474 of 1,451
3Story County, IA59153.9$2.8M+2.7%#481 of 1,451
4Johnson County, IA59304.7$2.2M+4.6%#501 of 1,451
5Dallas County, IA59276.4$1.9M+17.8%#505 of 1,451
6Jasper County, IA5853.3$3.6M+0.9%#507 of 1,451
7Sioux County, IA5175.5$2.4M+2.5%#700 of 1,451
8Clinton County, IA51105.1$2.2M−0.9%#707 of 1,451
9Polk County, IA481125.5$2M+4.8%#785 of 1,451
10Des Moines County, IA4563.5$3M−2.0%#843 of 1,451
Humboldt County, IANot scored12.4$5.1M−2.0%

Other business types in Humboldt County

None has a Groundwork market score here. Counties under 10,000 people aren’t scored, since a few businesses can swing their figures.

Questions

How many car washes and detailers are in Humboldt County, IA?

Humboldt County has 1 car wash or detailer on map listings as of September 2026. The listings count car washes and detailers. No official count is published for car washes in Humboldt County: counts under 3 are left out.

How much do households in Humboldt County, IA spend on vehicle maintenance and repairs?

About $5.1M a year, or $1,218 per household. That is 27% above the U.S. average (an index of 127, where 100 is the U.S. average). Spread across the 1 car wash or detailer on map listings, it comes to $5.1M 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 4,219 households in Humboldt County and national spending patterns by income.

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

Humboldt County has 1 car wash or detailer on map listings, too few for a steady comparison with the U.S. rate. At the national ratio of car washes and detailers to household spending, Humboldt County would have about 2, against 1 on map listings.

How fast is Humboldt County, IA growing?

Population estimates put Humboldt County at 9,409 people in 2025, down 2.0% since 2020, against +3.1% for the U.S. It has 4,219 households. Median household income in Humboldt County is $71,946, 11% below the U.S. median of $80,734.

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. The score leaves out counties under 10,000 people, where a handful of businesses would swing it.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Humboldt 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 Humboldt County

Screening a site or an acquisition in Humboldt 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 Humboldt 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.