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HVAC and plumbing companies in Door County, WI

Competitor counts, household spending and official business counts for HVAC and plumbing companies in Door County, WI, set against other counties and the U.S.

Groundwork market score · out of 100

Score 25 out of 100: Lower middle

Ranked #1,587 of 1,707 scored counties
#45 of 50 scored counties in Wisconsin

Listings
15
0 chain locations (0%)
Official establishments
23
+15.0% since 2019
Household spending a year
$41M
On home repairs, maintenance and insurance · $2,735 a household
Spending per listing
$2.7M
43% below the U.S.
Listings per 10k households
10.0
59% above the U.S.
Population, 2025
30,616
+1.6% since 2020

See the HVAC and plumbing companies around any address in Door County

The site report maps the HVAC and plumbing companies 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 Door County. 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

Door County scores 25 (lower middle) on the Groundwork market score for HVAC and plumbing companies, ranking #1,587 of 1,707 scored counties and #45 of 50 scored counties in Wisconsin. That puts it in the bottom quarter of counties.

As of September 2026, map listings count 15 HVAC and plumbing companies in Door County. None of them are chain locations, against 4% across the U.S. That is 10.0 per 10,000 households, 59% above the U.S. rate of 6.3.

At $2,735 per household (9% below the U.S. average), households in Door County spend about $41M a year on home repairs, maintenance and insurance. That is about $2.7M of household spending for each company on map listings, 43% below the U.S. figure of $4.8M. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade.

Official counts show 23 businesses with payroll classed as plumbing, heating and air-conditioning contractors in Door County in 2023, up 15.0% from 2019. That is one for every 652 households, against one for every 1,162 across the U.S. Between 2020 and 2025, the population of Door County grew 1.6%, slower than the U.S. (+3.1%).

How Door County compares

The same measures for Wisconsin and the whole U.S. Spending per listing divides a year of household spending on all home repairs, maintenance and insurance by the HVAC and plumbing companies counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

HVAC and plumbing in Door County, WI compared with Wisconsin and the U.S.
MeasureDoor CountyWisconsinU.S.
Listings per 10k households10.06.26.3
Spending per listing$2.7M$4.5M$4.8M
Households per official establishment6521,2751,162
Official establishment growth, 2019–2023+15.0%+1.8%+7.6%
Population growth, 2020–2025+1.6%+1.3%+3.1%
Spending per household on home repairs, maintenance and insurance$2,735$2,759$3,018
Median household income$74,795$77,485$80,734
Groundwork market score2545

Official counts and lending

Businesses

Official establishments, 2019 to 2023
20 → 23+15.0% over the period
Employees, 2023
182
Annual payroll, 2023
$12.3M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
150 chain locations
Listings at the U.S. rate for this spending
9The 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 plumbing, heating and air-conditioning contractors in Door 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 Door County

Population, 2025 estimate
30,616+1.6% since 2020
Households
14,986
Median age
53.6
Homes lived in by their owners
78%
Vehicles per household
2.0
Land area
482 sq. mi.
People per square mile
63
Median household income
$74,795+21.5% vs. 2015–2019, before inflation
Average household income
$105,001
Median home value
$342,600
Jobs located here
12,670
Daytime population
28,917Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Door 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 HVAC and plumbing companies on map listings by name and distance.

Or open the report at the center of Door County. Signed out, you see a blurred preview; on an account, each report is one action.

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HVAC and plumbing across Wisconsin

Every Wisconsin market ranked →

The highest-scoring counties in Wisconsin for HVAC and plumbing companies, numbered among those based in Wisconsin, with Door County marked.

Top counties in Wisconsin

Counties in Wisconsin ranked for HVAC and plumbing companies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Dane County, WI841214.8$6.3M+4.9%#34 of 1,707
2Calumet County, WI8094.2$6.9M+2.9%#65 of 1,707
3Eau Claire County, WI69235.1$5.3M+3.0%#238 of 1,707
4Portage County, WI68144.7$5.7M+2.2%#251 of 1,707
5Kenosha County, WI68355.1$5.5M−0.4%#253 of 1,707
6Milwaukee County, WI671233.1$8.2M−1.5%#267 of 1,707
7Washington County, WI66284.9$6.1M+1.8%#295 of 1,707
8Ozaukee County, WI62287.3$4.4M+3.0%#437 of 1,707
9Polk County, WI60105.1$5.3M+1.7%#493 of 1,707
10St. Croix County, WI59308.0$4M+4.7%#546 of 1,707
45Door County, WI251510.0$2.7M+1.6%#1,587 of 1,707

Other business types in Door County

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

Questions

How many HVAC and plumbing companies are in Door County, WI?

Door County has 15 HVAC and plumbing companies on map listings as of September 2026. None of them are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 23 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 15.0% from 2019.

How much do households in Door County, WI spend on home repairs, maintenance and insurance?

About $41M a year, or $2,735 per household. That is 9% below the U.S. average (an index of 91, where 100 is the U.S. average). Spread across the 15 HVAC and plumbing companies on map listings, it comes to $2.7M per company. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies. It is estimated from the incomes of the 14,986 households in Door County and national spending patterns by income.

How does Door County, WI compare with the U.S. for HVAC and plumbing companies?

Door County has 10.0 HVAC and plumbing companies per 10,000 households, 59% above the U.S. rate of 6.3. Spending per company is $2.7M, 43% below the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Door County would have about 9, against 15 on map listings. There is one business with payroll in the industry for every 652 households, against one for every 1,162 across the U.S. The official count rose 15.0% from 2019 to 2023, against +7.6% for the U.S.

How fast is Door County, WI growing?

Population estimates put Door County at 30,616 people in 2025, up 1.6% since 2020, slower than the U.S. (+3.1%). It has 14,986 households. The median household income in Door County is $74,795 a year, 7% below the U.S. median of $80,734. That rose 21.5% 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. 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. Door County scores 25 for HVAC and plumbing companies (lower middle), #1,587 of 1,707 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Door County. It maps the HVAC and plumbing companies 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 HVAC and plumbing companies · All 56 business types in Door County

Screening a site or an acquisition in Door 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 Door 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.