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Water and Wastewater Treatment Plant and System Operators average salary by city in Missouri
- St. Louis$61,380
- Kansas City$56,610
- Columbia$55,040
- Cape Girardeau$54,380
- St. Joseph$53,630
- Springfield$52,700
- Joplin$50,520
- Jefferson City$49,900
Pay, take-home pay and cost of living
| City | Average | Median | 25th pct. | Take-home* | Cost of living |
|---|---|---|---|---|---|
| St. Louis | $61,380 | $57,850 | $51,540 | $48,938 | 95 |
| Kansas City | $56,610 | $52,770 | $47,940 | $45,377 | 93 |
| Columbia | $55,040 | $50,270 | $48,170 | $44,755 | 89 |
| Cape Girardeau | $54,380 | $50,960 | $47,320 | $44,256 | 86 |
| St. Joseph | $53,630 | $50,670 | $46,050 | $43,688 | 86 |
| Springfield | $52,700 | $49,270 | $44,670 | $42,985 | 89 |
| Joplin | $50,520 | $49,750 | $40,350 | $41,336 | 86 |
| Jefferson City | $49,900 | $48,550 | $40,870 | $40,867 | 88 |
*Average salary after federal and state taxes for a single filer; includes St. Louis's local income tax (1%); the 1% earnings tax applies to people who live or work in Kansas City or St. Louis itself, not in the suburbs. Cost of living: BEA price parity, U.S. = 100.
Water and Wastewater Treatment Plant and System Operators salary in other states
Water and Wastewater Treatment Plant and System Operators salary by city and state
More about pay in Missouri
Sources and how to read this page
- Wages: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025 estimates for metropolitan areas. SOC code 51-8031.
- U.S. and statewide figures: BLS OEWS national and state estimates, May 2025, every employer including rural areas.
- Cost of living: Bureau of Economic Analysis regional price parities (RPP), 2024; 100 = U.S. average.
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