Water and Wastewater Treatment Plant and System Operators Salary in Missouri
Also called: Water Treatment Plant Operators
Water and Wastewater Treatment Plant and System Operators in Missouri earn a median of $49,940 a year, −17% compared with the U.S. median.
Updated October 2026 · Data: BLS OEWS May 2025 · How we match careers
- Median pay
- $49,940
- vs. U.S. median
- −17% ($60,020)
- Rank among states
- 40 of 50
- Jobs in the state
- 3,000
Pay range in Missouri
The lowest-paid 10% earn under $38,600; the top 10% earn over $64,930. Nationally the range is $39,110 to $91,060.
States ranked near Missouri
Similar jobs in Missouri
- Biomass Plant Technicians$101,900 median in Missouri (broader BLS group)
- Gas Plant Operators$87,820 median in Missouri
- Petroleum Pump System Operators, Refinery Operators, and Gaugers$80,960 median in Missouri
- Biofuels Processing Technicians$51,560 median in Missouri (broader BLS group)
- Hydroelectric Plant Technicians$101,900 median in Missouri (broader BLS group)
- Power Plant Operators$101,900 median in Missouri
Water and Wastewater Treatment Plant and System Operators pay in Missouri
How much do water and wastewater treatment plant and system operators make in Missouri?
The median is $49,940 a year. The lowest-paid 10% earn under $38,600 and the top 10% earn over $64,930. BLS OEWS May 2025.
Is Missouri a good state for water and wastewater treatment plant and system operators?
On pay alone it ranks 40 of 50 (−17% vs. the national median of $60,020). Living costs are not included.