The median annual wage for Chemical Engineers in St. Louis, MO-IL is $127,100 (May 2024 BLS OES). The mean (average) is $136,290.
Pay spans roughly $79,740 at the 10th percentile to $189,600 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $61.11 per hour. An estimated 180 people work as chemical engineers in St. Louis, MO-IL.
| Median (annual) | $127,100 |
| Mean (annual) | $136,290 |
| Median (hourly) | $61.11 |
| 10th percentile | $79,740 |
| 90th percentile | $189,600 |
| Employment | 180 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.