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HVAC and plumbing companies in Sauk County, WI
The HVAC and plumbing companies in Sauk County, WI, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 27 out of 100: Lower middle
Ranked #1,551 of 1,707 scored counties
#41 of 50 scored counties in Wisconsin
- Listings
- 26
- 0 chain locations (0%)
- Official establishments
- 37
- +5.7% since 2019
- Household spending a year
- $76.1M
- On home repairs, maintenance and insurance · $2,719 a household
- Spending per listing
- $2.9M
- 38% below the U.S.
- Listings per 10k households
- 9.3
- 48% above the U.S.
- Population, 2025
- 66,652
- +1.3% since 2020
See the HVAC and plumbing companies around any address in Sauk 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 Sauk County. 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
For HVAC and plumbing companies, Sauk County has a Groundwork market score of 27 (lower middle): #1,551 of 1,707 scored counties and #41 of 50 scored counties in Wisconsin. That puts it in the bottom quarter of counties.
As of September 2026, map listings count 26 HVAC and plumbing companies in Sauk County. None of them are chain locations, against 4% across the U.S. That comes to 9.3 for every 10,000 households, 48% above the U.S. rate of 6.3.
Household spending on home repairs, maintenance and insurance in Sauk County comes to about $76.1M a year: $2,719 per household, 10% below the U.S. average. That works out to $2.9M per company, 38% 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.
The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in Sauk County was 37 in 2023, up 5.7% from 2019. That is one for every 756 households, against one for every 1,162 across the U.S. Population estimates put the population change in Sauk County from 2020 to 2025 at +1.3%, slower than the U.S. (+3.1%).
How Sauk 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.
| Measure | Sauk County | Wisconsin | U.S. |
|---|---|---|---|
| Listings per 10k households | 9.3 | 6.2 | 6.3 |
| Spending per listing | $2.9M | $4.5M | $4.8M |
| Households per official establishment | 756 | 1,275 | 1,162 |
| Official establishment growth, 2019–2023 | +5.7% | +1.8% | +7.6% |
| Population growth, 2020–2025 | +1.3% | +1.3% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $2,719 | $2,759 | $3,018 |
| Median household income | $79,541 | $77,485 | $80,734 |
| Groundwork market score | 27 | 45 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 35 → 37+5.7% over the period
- Employees, 2023
- 286
- Annual payroll, 2023
- $16.6M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 260 chain locations
- Listings at the U.S. rate for this spending
- 16The 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 Sauk 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 Sauk County
- Population, 2025 estimate
- 66,652+1.3% since 2020
- Households
- 27,987
- Median age
- 42.3
- Homes lived in by their owners
- 72%
- Vehicles per household
- 2.0
- Land area
- 832 sq. mi.
- People per square mile
- 79
- Median household income
- $79,541+32.7% vs. 2015–2019, before inflation
- Average household income
- $98,005
- Median home value
- $258,600
- Jobs located here
- 36,015
- Daytime population
- 65,185Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Sauk 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 Sauk County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardHVAC 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 Sauk County marked.
Top counties in Wisconsin
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Dane County, WI | 84 | 121 | 4.8 | $6.3M | +4.9% | #34 of 1,707 |
| 2Calumet County, WI | 80 | 9 | 4.2 | $6.9M | +2.9% | #65 of 1,707 |
| 3Eau Claire County, WI | 69 | 23 | 5.1 | $5.3M | +3.0% | #238 of 1,707 |
| 4Portage County, WI | 68 | 14 | 4.7 | $5.7M | +2.2% | #251 of 1,707 |
| 5Kenosha County, WI | 68 | 35 | 5.1 | $5.5M | −0.4% | #253 of 1,707 |
| 6Milwaukee County, WI | 67 | 123 | 3.1 | $8.2M | −1.5% | #267 of 1,707 |
| 7Washington County, WI | 66 | 28 | 4.9 | $6.1M | +1.8% | #295 of 1,707 |
| 8Ozaukee County, WI | 62 | 28 | 7.3 | $4.4M | +3.0% | #437 of 1,707 |
| 9Polk County, WI | 60 | 10 | 5.1 | $5.3M | +1.7% | #493 of 1,707 |
| 10St. Croix County, WI | 59 | 30 | 8.0 | $4M | +4.7% | #546 of 1,707 |
| 41Sauk County, WI | 27 | 26 | 9.3 | $2.9M | +1.3% | #1,551 of 1,707 |
Other business types in Sauk County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Sauk County, WI?
Sauk County has 26 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 37 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 5.7% from 2019.
How much do households in Sauk County, WI spend on home repairs, maintenance and insurance?
About $76.1M a year, or $2,719 per household. That is 10% below the U.S. average (an index of 90, where 100 is the U.S. average). Spread across the 26 HVAC and plumbing companies on map listings, it comes to $2.9M 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 27,987 households in Sauk County and national spending patterns by income.
How does Sauk County, WI compare with the U.S. for HVAC and plumbing companies?
Sauk County has 9.3 HVAC and plumbing companies per 10,000 households, 48% above the U.S. rate of 6.3. Spending per company is $2.9M, 38% below the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Sauk County would have about 16, against 26 on map listings. There is one business with payroll in the industry for every 756 households, against one for every 1,162 across the U.S. The official count rose 5.7% from 2019 to 2023, against +7.6% for the U.S.
How fast is Sauk County, WI growing?
Population estimates put Sauk County at 66,652 people in 2025, up 1.3% since 2020, slower than the U.S. (+3.1%). It has 27,987 households. The median household income in Sauk County is $79,541 a year, in line with the U.S. median of $80,734. That rose 32.7% 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. Sauk County scores 27 for HVAC and plumbing companies (lower middle), #1,551 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Sauk 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 Sauk County
Screening a site or an acquisition in Sauk 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 Sauk 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.