The median annual wage for Environmental Engineers in St. Louis, MO-IL is $101,580 (May 2024 BLS OES). The mean (average) is $97,200.
Pay spans roughly $53,230 at the 10th percentile to $124,480 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $48.84 per hour. An estimated 220 people work as environmental engineers in St. Louis, MO-IL.
| Median (annual) | $101,580 |
| Mean (annual) | $97,200 |
| Median (hourly) | $48.84 |
| 10th percentile | $53,230 |
| 90th percentile | $124,480 |
| Employment | 220 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.