Plumbers in Knox County, Illinois
Knox County, Illinois has 9 plumbing, heating and air-conditioning contractor businesses with employees, employing 136 people (US Census Bureau, 2023 County Business Patterns).
That is 3.8 businesses per 10,000 homes, against 7.5 across Illinois.
Knox County ranks 79 of 80 counties in Illinois for businesses per 10,000 homes.
Their payroll averages $59,971 per employee a year.
Across Illinois, plumbers earn a median of $96,200 a year (US Bureau of Labor Statistics, May 2024).
Figures last updated on .
- Businesses with employees
- 9
- Their employees
- 136
- Businesses per 10,000 homes
- 3.8
Plumbers in Knox County: businesses and jobs
| Knox County | Illinois | United States | |
|---|---|---|---|
| Businesses with employees | 9 | 4,070 | 111,207 |
| Their employees | 136 | 41,112 | 1,214,761 |
| Annual payroll | $8,156,000 | $3,491,463,000 | — |
| Businesses per 10,000 homes | 3.8 | 7.5 | 7.7 |
The homes behind the work in Knox County
| Knox County | Illinois | United States | |
|---|---|---|---|
| Homes built before 1940 | 35.1% (±2.2 points) | 20.2% | 11.7% |
| Homes lacking complete plumbing | 0.7% (±0.5 points) | 0.3% | 0.4% |
| Homes in buildings of 20 or more units | 4.7% (±1.0 points) | 11.5% | 10.3% |
| Households that rent | 29.2% (±1.9 points) | 32.9% | 34.8% |
Homes built before 1940: 35.1% (±2.2 points) in Knox County, higher than across Illinois (20.2%).
Homes in buildings of 20 or more units: 4.7% (±1.0 points) in Knox County, lower than across Illinois (11.5%).
Households that rent: 29.2% (±1.9 points) in Knox County, lower than across Illinois (32.9%).
Places in Knox County
| Place | Residents | Built before 1980 | Households that rent |
|---|---|---|---|
| Galesburg | 29,481 | 82.0% | 37.8% |
| Galesburg City Township | 29,481 | 82.0% | 37.8% |
| Knox Township | 4,871 | 80.2% | 14.5% |
| Abingdon | 3,443 | 98.3% | 29.0% |
| Knoxville | 3,211 | 85.2% | 15.9% |
| Cedar Township | 2,993 | 93.2% | 22.2% |
| Indian Point Township | 1,796 | 94.2% | 23.7% |
| Henderson Township | 1,627 | 86.7% | 22.5% |
| Persifer Township | 1,190 | 23.4% | 1.7% |
| Ontario Township | 1,037 | 87.6% | 14.0% |
| Sparta Township | 908 | 80.7% | 22.3% |
| Truro Township | 772 | 72.3% | 9.1% |
| Oneida | 719 | 85.3% | 19.4% |
| East Galesburg | 713 | 72.2% | 16.4% |
| Wataga | 710 | 77.9% | 25.7% |
Counties in Illinois with a similar number of plumbing, heating and air-conditioning contractor businesses
| County | Businesses with employees | Businesses per 10,000 homes | Difference from Knox County, per 10,000 homes |
|---|---|---|---|
| Bureau County | 6 | 3.8 | +0.1 |
| McDonough County | 5 | 3.7 | −0.1 |
| Jersey County | 4 | 4.0 | +0.2 |
| Franklin County | 8 | 4.3 | +0.5 |
| Massac County | 3 | 4.4 | +0.6 |
| Boone County | 9 | 4.4 | +0.6 |
Licenses for plumbers in Illinois
Federal rules and model codes for plumbers
- Safe Drinking Water Act lead-free plumbing (42 U.S.C. § 300g-6)
- EPA Renovation, Repair and Painting Rule (40 CFR part 745, subpart E)
- OSHA respirable crystalline silica in construction (29 CFR 1926.1153)
- International Plumbing Code (ICC) and Uniform Plumbing Code (IAPMO)
Jobs and pay are published by state, not by county; the county figures are businesses and their employees.
Business counts are establishments: a company with offices in two counties is counted in each.
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Questions about Knox County
How many plumbing, heating and air-conditioning contractor businesses are in Knox County?
The Census Bureau counts 9 plumbing, heating and air-conditioning contractor businesses with employees in Knox County (2023 County Business Patterns).
How much do plumbers make in Knox County?
Pay is published by state: across Illinois, plumbers earn a median of $96,200 a year (US Bureau of Labor Statistics, May 2024).
Do plumbers need a license in Knox County?
Licenses for this trade are issued by Illinois, and a city or county in Knox County may add its own; the US Department of Labor’s License Finder lists the state’s, and the local building department says which permits a job needs.
Sources
- US Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2024
- US Census Bureau, County Business Patterns 2023
- License Finder: plumbers in Illinois (US Department of Labor, CareerOneStop)
- Safe Drinking Water Act lead-free plumbing (42 U.S.C. § 300g-6)
- EPA Renovation, Repair and Painting Rule (40 CFR part 745, subpart E)
- OSHA respirable crystalline silica in construction (29 CFR 1926.1153)
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Knox County, Illinois
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau and the US Bureau of Labor Statistics; Seayora reproduces them and does not adjust them. Rules are summarized from their official text, which governs; this page is not legal advice, and a state or city may add requirements of its own.
Figures last updated on .