Illinois roofing market: 6 counties compared
The 6 Illinois counties below hold 161 roofing companies with paid employees for 725,257 homes, or 4,505 homes per company. The median county across our data has 5,189. The thinnest in Illinois is McLean County (12,520); the most crowded is Winnebago County (2,906). The BLS median wage for roofers in Illinois is $77,900 a year (OEWS May 2025).
| County | Companies 2023 | Change since 2016 | Homes per company | Reading |
|---|---|---|---|---|
| McLean County | 6 | -5 | 12,520 | Thin supply |
| Champaign County | 13 | +3 | 7,258 | Typical |
| Peoria County | 12 | +6 | 7,083 | Typical |
| Sangamon County | 21 | +6 | 4,436 | Typical |
| Will County | 66 | +23 | 3,829 | Typical |
| Winnebago County | 43 | +15 | 2,906 | Crowded field |
Illinois roofing firms, 2016 to 2023
| 2016 | 758 |
|---|---|
| 2019 | 808 |
| 2021 | 883 |
| 2022 | 917 |
| 2023 | 939 |
The chart covers every Illinois county with enough firms to score, not only the listed ones. Thin means 1.5x the median homes per company or more; crowded means 0.67x or less.
| Reading | Illinois counties |
|---|---|
| Thin supply | 3 |
| Typical | 23 |
| Crowded field | 5 |
| Illinois counties with more firms than in 2016 | 21 |
What the Illinois numbers say
Counted together, the 31 Illinois counties with at least 3 roofing companies and a housing count list 939 firms in 2023 for 4,766,834 homes. Illinois runs at 0.98 times the median county's homes per company, so supply is denser than usual.
Illinois had 758 of these firms in 2016 and 939 in 2023, a change of +24%. By county, 21 added companies in Illinois, 7 lost some and 3 held level. Illinois reads thin in 3 of those counties, typical in 23 and crowded in 5. With 12,520 homes to each company, McLean County is the thinnest of the listed counties, while Winnebago County is the most crowded with 2,906; the biggest gain since 2016 is Will County, up 23 firms to 66.
Roofing firms are small. In Illinois, the 31 counties with employment data average 6.3 paid employees per firm; in counties that report size bands, 74% of Illinois firms have fewer than five.
Quick answers
How many roofing companies are there in Illinois?
Across the 31 Illinois counties we cover, the Census County Business Patterns list 939 Illinois roofing firms with paid employees for 2023 (NAICS 238160). Sole owners with no payroll are not counted, so the real number of people who will quote you is higher.
Is Illinois short on roofing contractors?
It depends on the county. The table above ranks Illinois counties by homes per company, thinnest first, starting with McLean County; 3 of 31 cross the thin-supply line.
Are there more roofing firms in Illinois than in 2016?
The yearly chart above shows the Illinois count, +24% overall; the county table shows each change since 2016.
How much do roofers earn in Illinois?
The BLS median wage for roofers in Illinois is $77,900 a year (OEWS May 2025). It is a statewide median for wage workers, not a price list.
What makes a county 'thin supply'?
A county with at least 1.5 times the median homes per company, which is about 7,784 homes per firm. In Illinois, 3 counties cross that line.
Why does hail matter for the market?
In Illinois, demand arrives in bursts after storms. 9 of its 31 counties are in the top quarter for hail days since 2014, and 0 of those Illinois counties are also thin on supply, so waits for a quote run longest there.
How current is the data?
Firm counts are Census County Business Patterns for 2016, 2019, 2021, 2022 and 2023; housing is the American Community Survey 2019 to 2023. The Census publishes the 2023 table in 2025, so it lags the market by about two years.
Only counties already open on our Illinois hail history are listed. More open each week.
Got a Illinois quote? Break it down: price per square and crew-hours.