The median annual wage for Chemical Engineers in Illinois is $120,360 (May 2024 BLS OES). The mean (average) is $120,970.
Pay spans roughly $74,230 at the 10th percentile to $171,110 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $57.87 per hour. An estimated 490 people work as chemical engineers in Illinois.
| Median (annual) | $120,360 |
| Mean (annual) | $120,970 |
| Median (hourly) | $57.87 |
| 10th percentile | $74,230 |
| 90th percentile | $171,110 |
| Employment | 490 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.