Illinois
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Illinois · Census 2023
15,911businesses with employees across these trades in Illinois
- Plumbing, heating and air-conditioning contractors (plumbers and HVAC: one Census code)4,070−86 vs 2022
- Roofing contractors1,026+14 vs 2022
- Landscaping businesses5,034+7 vs 2022
- Dental offices5,781−76 vs 2022
Source: U.S. Census Bureau, County Business Patterns 2023, businesses with paid employees. Each Census code is counted once.
Chicago12,494 in the trades below · Chicago–Naperville–Elgin metro
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Updated October 2026. Business counts: U.S. Census Bureau, County Business Patterns 2023.