Water and Wastewater Treatment Plant and System Operators Salary in Louisville/Jefferson County, KY-IN

BLS Occupational Employment & Wage Statistics • May 2025 • Louisville/Jefferson County, KY-IN

Median annual salary $55,660 -4.5% vs national
Median hourly $26.76
10th percentile $37,710
90th percentile $77,460
Employed locally 550
National median $58,260

Compare Water and Wastewater Treatment Plant and System Operators salary & buying power

Type a city below to see how Louisville/Jefferson County, KY-IN stacks up on salary and cost of living.

Full tool →
Water and Wastewater Treatment Plant and System Operators
in
Louisville/Jefferson County, KY-IN
vs

    Salary percentile breakdown

    10th
    $37,710
    25th
    $47,700
    50th (median)
    $55,660
    75th
    $74,090
    90th
    $77,460

    Louisville/Jefferson County economic context

    Unemployment rate 4.50% 2024 annual avg • BLS LAUS
    Median household income $71,737 2023 • Census ACS
    Water and Wastewater Treatment Plant and System Operators salary vs area income 78% Median Water and Wastewater Treatment Plant and System Operators salary is 22% below the area median household income

    Top-paying metros for Water and Wastewater Treatment Plant and System Operators

    Metro areaMedian salary
    San Francisco-Oakland-Fremont, CA $123,390
    San Jose-Sunnyvale-Santa Clara, CA $106,440
    Vallejo, CA $101,670
    Napa, CA $99,450
    Fairbanks-College, AK $91,010
    Salinas, CA $90,610

    Nearby metros — Water and Wastewater Treatment Plant and System Operators salary comparison

    Metro areaMedian salary
    Sandusky, OH $60,820
    Cincinnati, OH-KY-IN $59,470
    Paducah, KY-IL $49,960
    Central Kentucky nonmetropolitan area $48,590
    Owensboro, KY $48,580
    Lexington-Fayette, KY $48,040

    Related occupations in Louisville/Jefferson County, KY-IN

    OccupationMedian salary
    Miscellaneous Assemblers and Fabricators $47,130
    First-Line Supervisors of Production and Operating Workers $73,780
    Inspectors, Testers, Sorters, Samplers, and Weighers $47,130
    Cutting, Punching, and Press Machine Setters, Operators, and Tenders, Metal and Plastic $61,930
    Packaging and Filling Machine Operators and Tenders $47,790
    Welders, Cutters, Solderers, and Brazers $49,890

    Frequently asked questions

    How much do Water and Wastewater Treatment Plant and System Operators make per hour in Louisville/Jefferson County?

    The median hourly wage for Water and Wastewater Treatment Plant and System Operators in Louisville/Jefferson County, KY-IN is $26.76, based on BLS OEWS 2025 data. Top earners (90th percentile) make $38.34 or more per hour.

    Is Louisville/Jefferson County above or below average for Water and Wastewater Treatment Plant and System Operators salaries?

    The median Water and Wastewater Treatment Plant and System Operators salary in Louisville/Jefferson County, KY-IN is 4.5% below the national median of $58,260. The national figure is from BLS OEWS 2025 data covering all US metropolitan areas.

    What is the entry-level salary for Water and Wastewater Treatment Plant and System Operators in Louisville/Jefferson County?

    Entry-level Water and Wastewater Treatment Plant and System Operators (10th percentile) earn around $37,710 per year in Louisville/Jefferson County, KY-IN. The 25th percentile — typically workers with 1–3 years of experience — earn approximately $47,700.