Environmental Engineers in the St. Louis Metro

BLS metro-level wage data places Environmental Engineers pay in St. Louis, MO-IL at a median of $94,980 per year ($45.66/hr), drawn from the OEWS May 2025 release for this Metropolitan Statistical Area. Compared with the national median of $107,110, the metro estimate is 11% below. OEWS reports the difference but does not identify its cause. Approximately 230 environmental engineers are employed across the St. Louis MSA in SOC 17-2081.

The St. Louis pay distribution spans from $56,430 at the 10th percentile to $128,650 at the 90th, a 2.3× observed spread. Differences in specialization, employer, sector, location, credentials, schedule, and experience may all contribute, but OEWS does not isolate their effects. The 25th percentile sits at $65,160 and the 75th at $125,070, so half of St. Louis-based environmental engineers earn within that middle band.

Metro figures use establishment work location, not worker residence. BLS draws metro boundaries from the OMB MSA definitions, so St. Louis, MO-IL covers the central city plus outlying counties tied to the metro economically. OEWS includes straight-time pay, tips, commissions, incentive pay, and production bonuses. It excludes employer health and retirement benefits, overtime premiums, stock compensation, signing bonuses, and other nonproduction bonuses. The same occupation's national profile, statewide MO estimate, and peer-metro rows provide distinct geographic comparisons. A published median is a benchmark, not a prediction or ceiling for one worker.