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Pest control companies in St. Clair County, IL
The pest control companies in St. Clair County, IL, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 46 out of 100: Lower middle
Ranked #395 of 699 scored counties
#12 of 19 scored counties in Illinois
- Listings
- 14
- 2 chain locations (14%)
- Official establishments
- 7
- Businesses with payroll, 2023
- Household spending a year
- $124.3M
- On lawn care, cleaning and other household services · $1,232 a household
- Spending per listing
- $8.9M
- 13% below the U.S.
- Listings per 10k households
- 1.4
- In line with the U.S.
- Population, 2025
- 250,708
- −2.5% since 2020
See the pest control companies around any address in St. Clair County
The site report maps the pest control 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 St. Clair 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
As of September 2026, map listings count 14 pest control companies in St. Clair County. Of those, 2 are chain locations, or 14%, against 20% across the U.S. Per 10,000 households, that is 1.4, in line with the U.S. rate of 1.4.
Household spending on lawn care, cleaning and other household services in St. Clair County comes to about $124.3M a year: $1,232 per household, 13% below the U.S. average. That is about $8.9M of household spending for each company on map listings, 13% below the U.S. figure of $10.2M. That spending covers all lawn care, cleaning and other household services, which pest control companies share with other businesses in the trade.
Official counts show 7 businesses with payroll classed as exterminating and pest control services in St. Clair County in 2023. That is one for every 14,407 households, against one for every 7,814 across the U.S.
Between 2020 and 2025, the population of St. Clair County declined 2.5%, against +3.1% for the U.S. The Groundwork market score for pest control companies in St. Clair County is 46 (lower middle), #395 of 699 scored counties and #12 of 19 scored counties in Illinois.
How St. Clair County compares
The same measures for Illinois and the whole U.S. Spending per listing divides a year of household spending on all lawn care, cleaning and other household services by the pest control 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 | St. Clair County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 1.4 | 1.0 | 1.4 |
| Spending per listing | $8.9M | $13.8M | $10.2M |
| Households per official establishment | 14,407 | 12,751 | 7,814 |
| Official establishment growth, 2019–2023 | n/a | +5.9% | +10.5% |
| Population growth, 2020–2025 | −2.5% | −0.6% | +3.1% |
| Spending per household on lawn care, cleaning and other household services | $1,232 | $1,322 | $1,414 |
| Median household income | $73,854 | $83,390 | $80,734 |
| Groundwork market score | 46 | 58 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 10 → 7
- Employees, 2023
- 53
- Annual payroll, 2023
- $2.5M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 142 chain locations
- Listings at the U.S. rate for this spending
- 12The 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 exterminating and pest control services in St. Clair 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 St. Clair County
- Population, 2025 estimate
- 250,708−2.5% since 2020
- Households
- 100,846
- Median age
- 40.3
- Homes lived in by their owners
- 68%
- Vehicles per household
- 1.8
- Land area
- 658 sq. mi.
- People per square mile
- 386
- Median household income
- $73,854+33.8% vs. 2015–2019, before inflation
- Average household income
- $96,153
- Median home value
- $180,300
- Jobs located here
- 90,959
- Daytime population
- 229,240Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Clair 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 pest control companies on map listings by name and distance.
Or open the report at the center of St. Clair County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardPest control across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for pest control companies, numbered among those based in Illinois, with St. Clair County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Will County, IL | 72 | 27 | 1.1 | $13.3M | +2.2% | #73 of 699 |
| 2McHenry County, IL | 69 | 13 | 1.1 | $13.1M | +2.5% | #107 of 699 |
| 3Cook County, IL | 66 | 142 | 0.7 | $19.7M | −1.3% | #134 of 699 |
| 4Lake County, IL | 66 | 35 | 1.4 | $11.3M | +0.8% | #143 of 699 |
| 5Kane County, IL | 65 | 22 | 1.2 | $12.2M | +1.8% | #156 of 699 |
| 6DuPage County, IL | 61 | 53 | 1.5 | $10.1M | +0.3% | #210 of 699 |
| 7Champaign County, IL | 55 | 10 | 1.2 | $10M | +1.8% | #289 of 699 |
| 8Winnebago County, IL | 54 | 11 | 0.9 | $12.2M | −0.4% | #295 of 699 |
| 9Madison County, IL | 53 | 12 | 1.1 | $11.4M | −1.0% | #309 of 699 |
| 10McLean County, IL | 52 | 9 | 1.3 | $9.9M | +0.1% | #324 of 699 |
| 12St. Clair County, IL | 46 | 14 | 1.4 | $8.9M | −2.5% | #395 of 699 |
Other business types in St. Clair 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 pest control companies are in St. Clair County, IL?
St. Clair County has 14 pest control companies on map listings as of September 2026. 2 of them (14%) are chain locations. The listings count pest control companies. Official counts show 7 businesses with payroll classed as exterminating and pest control services in 2023.
How much do households in St. Clair County, IL spend on lawn care, cleaning and other household services?
About $124.3M a year, or $1,232 per household. That is 13% below the U.S. average (an index of 87, where 100 is the U.S. average). Spread across the 14 pest control companies on map listings, it comes to $8.9M per company. The spending figure covers all lawn care, cleaning and other household services, not only pest control companies. It is estimated from the incomes of the 100,846 households in St. Clair County and national spending patterns by income.
How does St. Clair County, IL compare with the U.S. for pest control companies?
St. Clair County has 1.4 pest control companies per 10,000 households, in line with the U.S. rate of 1.4. Spending per company is $8.9M, 13% below the U.S. figure of $10.2M. At the national ratio of pest control companies to household spending, St. Clair County would have about 12, against 14 on map listings. There is one business with payroll in the industry for every 14,407 households, against one for every 7,814 across the U.S.
How fast is St. Clair County, IL growing?
Population estimates put St. Clair County at 250,708 people in 2025, down 2.5% since 2020, against +3.1% for the U.S. It has 100,846 households. Median household income in St. Clair County is $73,854, 9% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.8%, 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. St. Clair County scores 46 for pest control companies (lower middle), #395 of 699 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in St. Clair County. It maps the pest control 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 pest control companies · All 56 business types in St. Clair County
Screening a site or an acquisition in St. Clair 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 St. Clair 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.