Water and Wastewater Treatment Plant and System Operator Salary Information in Missouri

The average annual and hourly salaries for water and wastewater treatment plant and system operators in the state of Missouri are shown in Table 1 and Table 2, respectively. The comparison of the salary statistics of water and wastewater treatment plant and system operators among Missouri metropolitan areas is shown in Table 3. The salary statistics are based on the national compensation survey conducted by the U.S. Bureau of Labor Statistics in 2017 and published in April 2018 [1].

Table 1 & 2. Annual & Hourly Salary of Water and Wastewater Treatment Plant and System Operators in Missouri

Percentile BracketAverage Annual Salary
10th Percentile Wage
$26,840
25th Percentile Wage
$32,690
50th Percentile Wage
$41,550
75th Percentile Wage
$52,280
90th Percentile Wage
$61,640

Table 1 shows the average annual salary for water and wastewater treatment plant and system operators in Missouri in 5 percentile scales. The average annual salary for the 90th percentile (the top 10 percent of the highest paid) is $61,640. The median (50th percentile) annual salary is $41,550. The average annual salary for the bottom 10 percent is $26,840.

Salary Trend (2012 to 2017)

The table and chart below show the trend of the median salary of water and wastewater treatment plant and system operators from 2012 to 2017.

YearMedian SalaryYearly Growth5-Year Growth
2017
$41,550
-3.39% 9.19%
2016
$42,960
5.73% -
2015
$40,500
2.72% -
2014
$39,400
5.61% -
2013
$37,190
-1.45% -
2012
$37,730
- -

Table 3. Median Annual Salary of Water and Wastewater Treatment Plant and System Operators in Missouri Cities

Table 3 shows the median annual salary of water and wastewater treatment plant and system operators in some Missouri cities and metropolitan areas. We note that the median annual salary of water and wastewater treatment plant and system operators in state of Missouri ranges from $31,230 to $47,210. The highest paying area for water and wastewater treatment plant and system operators in Missouri is St Louis with a median annual salary of $47,210. The second highest paying city/area in Missouri State is Kansas City (mean annual salary $46,900). The lowest paying area is Southeast Missouri nonmetropolitan area with a median annual salary of $31,230.

Cities/Areas Median Annual Salary
St Louis
$47,210
Kansas City
$46,900
North Missouri nonmetropolitan area
$44,850
Columbia
$44,770
Jefferson City
$43,100
St Joseph
$41,500
Joplin
$39,380
Southwest Missouri nonmetropolitan area
$39,290
Fayetteville-Springdale-Rogers
$37,670
Springfield
$36,070
Central Missouri nonmetropolitan area
$33,410
Cape Girardeau-Jackson
$32,300
Southeast Missouri nonmetropolitan area
$31,230




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