Groundwork

Home services · Small-town market · Illinois

HVAC and plumbing companies in the Centralia, IL area

The HVAC and plumbing companies in the Centralia, IL area, the household spending behind them and how the market ranks against other small-town markets.

Groundwork market score · out of 100

Score 50 out of 100: Upper middle

Ranked #232 of 476 scored small-town markets
#4 of 19 scored small-town markets based in Illinois

Listings
6
0 chain locations (0%)
Official establishments
12
Businesses with payroll, 2023
Household spending a year
$37.6M
On home repairs, maintenance and insurance · $2,422 a household
Spending per listing
$6.3M
32% above the U.S.
Listings per 10k households
3.9
38% below the U.S.
Population, 2025
36,382
−3.4% since 2020

See the HVAC and plumbing companies around any address in the Centralia area

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 the Centralia area. 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

Households in the Centralia area spend about $37.6M a year on home repairs, maintenance and insurance, or $2,422 per household, 20% below the U.S. average. That works out to $6.3M per company, 32% above the U.S. figure of $4.8M. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies.

The Centralia area has 6 HVAC and plumbing companies on map listings as of September 2026. None of them are chain locations, against 4% across the U.S. That is 3.9 per 10,000 households, 38% below the U.S. rate of 6.3.

The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in the Centralia area was 12 in 2023. That is one for every 1,293 households, against one for every 1,162 across the U.S.

Between 2020 and 2025, the population of the Centralia area declined 3.4%, against +3.1% for the U.S. The Groundwork market score for HVAC and plumbing companies in the Centralia area is 50 (upper middle), #232 of 476 scored small-town markets and #4 of 19 scored small-town markets based in Illinois.

How the Centralia area 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 Centralia, IL area compared with Illinois and the U.S.
MeasureCentralia areaIllinoisU.S.
Listings per 10k households3.96.96.3
Spending per listing$6.3M$4.2M$4.8M
Households per official establishment1,2931,2371,162
Official establishment growth, 2019–2023n/a−0.3%+7.6%
Population growth, 2020–2025−3.4%−0.6%+3.1%
Spending per household on home repairs, maintenance and insurance$2,422$2,919$3,018
Median household income$61,240$83,390$80,734
Groundwork market score5040

Official counts and lending

Businesses

Official establishments, 2019 to 2023
12
Employees, 2023
62
Annual payroll, 2023
$3.2M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
60 chain locations
Listings at the U.S. rate for this spending
8The 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 the Centralia area, 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 the Centralia area

Population, 2025 estimate
36,382−3.4% since 2020
Households
15,512
Median age
41.1
Homes lived in by their owners
75%
Vehicles per household
1.8
Land area
573 sq. mi.
People per square mile
65
Median household income
$61,240+28.9% vs. 2015–2019, before inflation
Average household income
$77,168
Median home value
$103,000
Jobs located here
13,082
Daytime population
33,907Residents who don’t work, plus everyone whose job is here

Looking at a specific site in the Centralia area?

These figures cover the whole small-town market. 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 the Centralia area. 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 small-town markets in Illinois for HVAC and plumbing companies, numbered among those based in Illinois (a market based in another state is listed without a number), with the Centralia area marked.

Top small-town markets in Illinois

Small-town markets in Illinois ranked for HVAC and plumbing companies by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Rochelle, IL71115.3$5.2M−0.7%#50 of 476
2Ottawa, IL62335.3$4.9M−1.6%#114 of 476
3Dixon, IL5186.0$4.4M−3.4%#222 of 476
4Centralia, IL5063.9$6.3M−3.4%#232 of 476
5Canton, IL4875.1$4.8M−2.0%#255 of 476
6Danville, IL43175.7$4.2M−3.7%#302 of 476
7Taylorville, IL4285.9$4.2M−1.5%#309 of 476
Burlington, IA-IL41126.0$4M−2.5%#322 of 476
8Marion-Herrin, IL41196.6$3.9M+0.2%#323 of 476
9Galesburg, IL38146.7$3.5M−4.1%#359 of 476

Other business types in the Centralia area

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

Questions

How many HVAC and plumbing companies are in the Centralia, IL area?

Map listings as of September 2026 show 6 HVAC and plumbing companies in the Centralia area. None of them are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 12 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023.

How much do households in the Centralia, IL area spend on home repairs, maintenance and insurance?

About $37.6M a year, or $2,422 per household. That is 20% below the U.S. average (an index of 80, where 100 is the U.S. average). Spread across the 6 HVAC and plumbing companies on map listings, it comes to $6.3M per company. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade. It is estimated from the incomes of the 15,512 households in the Centralia area and national spending patterns by income.

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

The Centralia area has 3.9 HVAC and plumbing companies per 10,000 households, 38% below the U.S. rate of 6.3. Spending per company is $6.3M, 32% above the U.S. figure of $4.8M. At the U.S. ratio of HVAC and plumbing companies to household spending, the Centralia area would have about 8, against 6 on map listings. There is one business with payroll in the industry for every 1,293 households, against one for every 1,162 across the U.S.

How fast is the Centralia, IL area growing?

Population estimates put the Centralia area at 36,382 people in 2025, down 3.4% since 2020, against +3.1% for the U.S. It has 15,512 households. Median household income in the Centralia area is $61,240, 24% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 28.9%, 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. A small-town market is a town of 10,000 to 50,000 people and the county or counties tied to it by commuting. 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 Centralia area scores 50 for HVAC and plumbing companies (upper middle), #232 of 476 scored small-town markets.

How can I see the market around a specific site?

Run a Groundwork site report on an address in the Centralia area. 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 the Centralia area

Screening a site or an acquisition in the Centralia area?

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 the Centralia area. 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.