Chemical Engineer salary in St. Louis, MO
Based on 15 certified H-1B filings in the St. Louis, MO-IL metro area, FY2025–FY2026. Includes St Louis, Chesterfield, Festus.
Also listed as: Process Engineer
Median salary$65,562
Middle 50%$65.6k–$99.3k
vs. national median−45%comparison median $118,700
Filings15FY2025–FY2026 · latest two fiscal years
Salary range
National median
$50k$60k$70k$80k$90k$100k$110k$120k$130k
| Percentile | Salary |
|---|---|
| 10th | $62,105 |
| 25th | $65,562 |
| 50th (median) | $65,562 |
| 75th | $99,338 |
| 90th | $119,794 |
Cost of living
St. Louis's median Chemical Engineer salary of $65,562 is worth about $68,900 at national average prices.
Source: BEA Regional Price Parities, 2024 (U.S. = 100; St. Louis = 95.1).
Compared with all workers here
All Chemical Engineers in the St. Louis, MO area earned a median of $133,450 in May 2025 (110 employed). The H-1B median here is $65,562, 51% lower.
Source: U.S. Bureau of Labor Statistics, OEWS metropolitan area estimates. BLS wages include some incentive pay; H-1B figures are base salary.
Top employers filing
| Employer | Median | Filings |
|---|---|---|
| Washington University | too few | 8 |
| Bayer CropScience | too few | 2 |
| L&T Technology Services | too few | 2 |
Employers with at least 2 filings here. Median shown at 10+ filings.
By experience level
| Wage level | Median | Filings |
|---|---|---|
| Entry-level · Level I | too few | 4 |
| Mid-level · Level II | too few | 4 |
| Senior · Level III | – | 0 |
| Expert · Level IV | – | 0 |
Median shown when a level has at least 10 filings.