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HVAC and plumbing companies in Johnson County, IL
How Johnson County, IL compares with other counties and the U.S. for HVAC and plumbing companies: competitors, household spending, official counts and growth.
Groundwork market score
Not scored
The score needs at least 5 listings; this market has 2.
- Listings
- 2
- 0 chain locations (0%)
- Official establishments
- 3
- Businesses with payroll, 2023
- Household spending a year
- $10M
- On home repairs, maintenance and insurance · $2,438 a household
- Spending per listing
- $5M
- Too few listings to compare
- Listings per 10k households
- 4.9
- Too few listings to compare
- Population, 2025
- 13,363
- +0.4% since 2020
See the HVAC and plumbing companies around any address in Johnson 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 Johnson 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
Map listings as of September 2026 show 2 HVAC and plumbing companies in Johnson County. That is 4.9 per 10,000 households.
Household spending on home repairs, maintenance and insurance in Johnson County comes to about $10M a year: $2,438 per household, 19% below the U.S. average. That is about $5M of household spending for each company on map listings. 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 Johnson County was 3 in 2023. That is one for every 1,367 households, against one for every 1,162 across the U.S.
Population estimates put the population change in Johnson County from 2020 to 2025 at +0.4%, slower than the U.S. (+3.1%). With 2 HVAC and plumbing companies on map listings, Johnson County isn’t given a market score: the score needs at least 5, since one listing more or less would swing it.
How Johnson 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.
| Measure | Johnson County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 4.9 | 6.9 | 6.3 |
| Spending per listing | $5M | $4.2M | $4.8M |
| Households per official establishment | 1,367 | 1,237 | 1,162 |
| Official establishment growth, 2019–2023 | n/a | −0.3% | +7.6% |
| Population growth, 2020–2025 | +0.4% | −0.6% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $2,438 | $2,919 | $3,018 |
| Median household income | $62,528 | $83,390 | $80,734 |
| Groundwork market score | Not scored | 40 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 3
- Employees, 2023
- 7
- Annual payroll, 2023
- $383K
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 20 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 plumbing, heating and air-conditioning contractors in Johnson 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 Johnson County
- Population, 2025 estimate
- 13,363+0.4% since 2020
- Households
- 4,101
- Median age
- 41.4
- Homes lived in by their owners
- 82%
- Vehicles per household
- 2.0
- Land area
- 344 sq. mi.
- People per square mile
- 39
- Median household income
- $62,528+18.5% vs. 2015–2019, before inflation
- Average household income
- $78,713
- Median home value
- $160,500
- Jobs located here
- 2,158
- Daytime population
- 10,999Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Johnson 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 Johnson 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 Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for HVAC and plumbing companies, numbered among those based in Illinois, with Johnson County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Cook County, IL | 65 | 1,095 | 5.2 | $5.7M | −1.3% | #335 of 1,707 |
| 2Rock Island County, IL | 63 | 21 | 3.4 | $7.4M | −1.7% | #384 of 1,707 |
| 3Ogle County, IL | 63 | 11 | 5.3 | $5.2M | −0.7% | #395 of 1,707 |
| 4Henry County, IL | 62 | 8 | 3.9 | $6.8M | −2.2% | #409 of 1,707 |
| 5Franklin County, IL | 59 | 5 | 3.1 | $7.5M | −2.1% | #511 of 1,707 |
| 6St. Clair County, IL | 59 | 53 | 5.3 | $5.2M | −2.5% | #530 of 1,707 |
| 7Monroe County, IL | 57 | 10 | 7.2 | $4.4M | −0.3% | #613 of 1,707 |
| 8Sangamon County, IL | 56 | 46 | 5.4 | $5M | −1.0% | #635 of 1,707 |
| 9Champaign County, IL | 52 | 54 | 6.3 | $4.1M | +1.8% | #791 of 1,707 |
| 10Kendall County, IL | 52 | 48 | 10.6 | $3.1M | +9.9% | #802 of 1,707 |
| Johnson County, IL | Not scored | 2 | 4.9 | $5M | +0.4% |
Other business types in Johnson 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 Johnson County, IL?
There are 2 HVAC and plumbing companies on map listings in Johnson County as of September 2026. The listings count heating and air-conditioning companies and plumbers. Official counts show 3 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023.
How much do households in Johnson County, IL spend on home repairs, maintenance and insurance?
About $10M a year, or $2,438 per household. That is 19% below the U.S. average (an index of 81, where 100 is the U.S. average). Spread across the 2 HVAC and plumbing companies on map listings, it comes to $5M 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 4,101 households in Johnson County and national spending patterns by income.
How does Johnson County, IL compare with the U.S. for HVAC and plumbing companies?
Johnson County has 2 HVAC and plumbing companies on map listings, too few for a steady comparison with the U.S. rate. The count on map listings matches the U.S. ratio of HVAC and plumbing companies to household spending. There is one business with payroll in the industry for every 1,367 households, against one for every 1,162 across the U.S.
How fast is Johnson County, IL growing?
Population estimates put Johnson County at 13,363 people in 2025, up 0.4% since 2020, slower than the U.S. (+3.1%). It has 4,101 households. The median household income in Johnson County is $62,528 a year, 23% below the U.S. median of $80,734. That rose 18.5% 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. Johnson County has no market score for HVAC and plumbing companies: the score needs at least 5 on map listings, and it has 2.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Johnson 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 Johnson County
Screening a site or an acquisition in Johnson 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 Johnson 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.