Water and Wastewater Treatment Plant and System Operators Salary in Walla Walla, WA

BLS Occupational Employment & Wage Statistics • May 2025 • Walla Walla, WA

Median annual salary $66,740 +14.6% vs national
Median hourly $32.09
10th percentile $43,050
90th percentile $78,310
Employed locally 30
National median $58,260

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

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Water and Wastewater Treatment Plant and System Operators
in
Walla Walla, WA
vs

    Salary percentile breakdown

    10th
    $43,050
    25th
    $65,970
    50th (median)
    $66,740
    75th
    $73,710
    90th
    $78,310

    Walla Walla economic context

    Unemployment rate 4.20% 2024 annual avg • BLS LAUS
    Median household income $72,212 2023 • Census ACS
    Water and Wastewater Treatment Plant and System Operators salary vs area income 92% Median Water and Wastewater Treatment Plant and System Operators salary is 8% 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
    Seattle-Tacoma-Bellevue, WA $88,440
    Santa Cruz-Watsonville, CA $85,790
    Olympia-Lacey-Tumwater, WA $85,000
    New York-Newark-Jersey City, NY-NJ $82,830
    Mount Vernon-Anacortes, WA $81,730
    Portland-Vancouver-Hillsboro, OR-WA $79,640

    Related occupations in Walla Walla, WA

    OccupationMedian salary
    First-Line Supervisors of Production and Operating Workers$73,100
    Separating, Filtering, Clarifying, Precipitating, and Still Machine Setters, Operators, and Tenders$62,470
    Miscellaneous Assemblers and Fabricators$44,000
    Packaging and Filling Machine Operators and Tenders$42,800
    Welders, Cutters, Solderers, and Brazers$60,720
    Cutting and Slicing Machine Setters, Operators, and Tenders$44,670

    Frequently asked questions

    How much do Water and Wastewater Treatment Plant and System Operators make per hour in Walla Walla?

    The median hourly wage for Water and Wastewater Treatment Plant and System Operators in Walla Walla, WA is $32.09, based on BLS OEWS 2025 data. Top earners (90th percentile) make $37.65 or more per hour.

    Is Walla Walla 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 Walla Walla, WA is 14.6% above 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 Walla Walla?

    Entry-level Water and Wastewater Treatment Plant and System Operators (10th percentile) earn around $43,050 per year in Walla Walla, WA. The 25th percentile — typically workers with 1–3 years of experience — earn approximately $65,970.