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HVAC and plumbing companies in McHenry County, IL

The HVAC and plumbing companies in McHenry County, IL, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 35 out of 100: Lower middle

Ranked #1,371 of 1,707 scored counties
#33 of 59 scored counties in Illinois

Listings
136
4 chain locations (3%)
Official establishments
169
+3.1% since 2019
Household spending a year
$379.2M
On home repairs, maintenance and insurance · $3,225 a household
Spending per listing
$2.8M
41% below the U.S.
Listings per 10k households
11.6
84% above the U.S.
Population, 2025
317,751
+2.5% since 2020

See the HVAC and plumbing companies around any address in McHenry 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 McHenry 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

The Groundwork market score for HVAC and plumbing companies in McHenry County is 35 (lower middle), #1,371 of 1,707 scored counties and #33 of 59 scored counties in Illinois. That puts it in the bottom quarter of counties.

Map listings as of September 2026 show 136 HVAC and plumbing companies in McHenry County. Of those, 4 are chain locations, or 3%, against 4% across the U.S. Per 10,000 households, that is 11.6, 84% above the U.S. rate of 6.3.

Household spending on home repairs, maintenance and insurance in McHenry County comes to about $379.2M a year: $3,225 per household, 7% above the U.S. average. That is about $2.8M of household spending for each company on map listings, 41% 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.

In 2023, official counts showed 169 businesses with payroll in McHenry County classed as plumbing, heating and air-conditioning contractors, up 3.1% from 2019. That is one for every 696 households, against one for every 1,162 across the U.S. Since fiscal 2022, 8 SBA-backed loans worth $5.8M have gone to businesses classed as plumbing, heating and air-conditioning contractors in McHenry County. Between 2020 and 2025, the population of McHenry County grew 2.5%, slower than the U.S. (+3.1%).

How McHenry County compares

The same measures for Illinois 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 McHenry County, IL compared with Illinois and the U.S.
MeasureMcHenry CountyIllinoisU.S.
Listings per 10k households11.66.96.3
Spending per listing$2.8M$4.2M$4.8M
Households per official establishment6961,2371,162
Official establishment growth, 2019–2023+3.1%−0.3%+7.6%
Population growth, 2020–2025+2.5%−0.6%+3.1%
Spending per household on home repairs, maintenance and insurance$3,225$2,919$3,018
Median household income$104,802$83,390$80,734
Groundwork market score3540

Official counts and lending

Businesses

Official establishments, 2019 to 2023
164 → 169+3.1% over the period
Employees, 2023
1,164
Annual payroll, 2023
$97.4M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
1364 chain locations
Listings at the U.S. rate for this spending
80The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
8
Amount
$5.8M

SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in McHenry 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 McHenry County

Population, 2025 estimate
317,751+2.5% since 2020
Households
117,594
Median age
41.3
Homes lived in by their owners
83%
Vehicles per household
2.0
Land area
603 sq. mi.
People per square mile
518
Median household income
$104,802+20.7% vs. 2015–2019, before inflation
Average household income
$130,520
Median home value
$308,100
Jobs located here
93,473
Daytime population
243,217Residents who don’t work, plus everyone whose job is here

Looking at a specific site in McHenry 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 McHenry County. Signed out, you see a blurred preview; on an account, each report is one action.

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HVAC and plumbing across Illinois

Every Illinois market ranked →

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

Top counties in Illinois

Counties in Illinois ranked for HVAC and plumbing companies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Cook County, IL651,0955.2$5.7M−1.3%#335 of 1,707
2Rock Island County, IL63213.4$7.4M−1.7%#384 of 1,707
3Ogle County, IL63115.3$5.2M−0.7%#395 of 1,707
4Henry County, IL6283.9$6.8M−2.2%#409 of 1,707
5Franklin County, IL5953.1$7.5M−2.1%#511 of 1,707
6St. Clair County, IL59535.3$5.2M−2.5%#530 of 1,707
7Monroe County, IL57107.2$4.4M−0.3%#613 of 1,707
8Sangamon County, IL56465.4$5M−1.0%#635 of 1,707
9Champaign County, IL52546.3$4.1M+1.8%#791 of 1,707
10Kendall County, IL524810.6$3.1M+9.9%#802 of 1,707
33McHenry County, IL3513611.6$2.8M+2.5%#1,371 of 1,707

Other business types in McHenry County

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

Questions

How many HVAC and plumbing companies are in McHenry County, IL?

There are 136 HVAC and plumbing companies on map listings in McHenry County as of September 2026. 4 of them (3%) are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 169 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, up 3.1% from 2019.

How much do households in McHenry County, IL spend on home repairs, maintenance and insurance?

About $379.2M a year, or $3,225 per household. That is 7% above the U.S. average (an index of 107, where 100 is the U.S. average). Spread across the 136 HVAC and plumbing companies on map listings, it comes to $2.8M 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 117,594 households in McHenry County and national spending patterns by income.

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

McHenry County has 11.6 HVAC and plumbing companies per 10,000 households, 84% above the U.S. rate of 6.3. Spending per company is $2.8M, 41% below the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, McHenry County would have about 80, against 136 on map listings. There is one business with payroll in the industry for every 696 households, against one for every 1,162 across the U.S. The official count rose 3.1% from 2019 to 2023, against +7.6% for the U.S.

How fast is McHenry County, IL growing?

Population estimates put McHenry County at 317,751 people in 2025, up 2.5% since 2020, slower than the U.S. (+3.1%). It has 117,594 households. The median household income in McHenry County is $104,802 a year, 30% above the U.S. median of $80,734. That rose 20.7% 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. McHenry County scores 35 for HVAC and plumbing companies (lower middle), #1,371 of 1,707 scored counties.

How can I see the market around a specific site?

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

Screening a site or an acquisition in McHenry 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 McHenry 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.