Water and Wastewater Treatment Plant and System Operators salary in Oklahoma
Water and Wastewater Treatment Plant and System Operators in Oklahoma earn a median of $45,890 a year ($22.06 an hour), based on BLS data for 2,280 workers.
Pay ranges from $35,250 for the lowest-paid 10% to $63,040 for the top 10%. That is 24% lower than the national median of $60,020. Oklahoma ranks 48th of 50 states for water and wastewater treatment plant and system operators pay. There are 1.3 water and wastewater treatment plant and system operators per 1,000 jobs here — the job is 1.6× more common than nationally. The average (mean) salary is $47,350, above the median because a few high earners pull it up.
Pay range for water and wastewater treatment plant and system operators in Oklahoma
| Pay level | Yearly | Hourly |
|---|---|---|
| 10th percentile (entry level) | $35,250 | $16.95 |
| 25th percentile | $38,130 | $18.33 |
| Median | $45,890 | $22.06 |
| 75th percentile | $52,000 | $25.00 |
| 90th percentile (top earners) | $63,040 | $30.31 |
| Average (mean) | $47,350 | $22.76 |
Half of water and wastewater treatment plant and system operators earn more than the median and half earn less. Percentiles show the spread: 10% earn less than the 10th percentile, and 10% earn more than the 90th.
Median paycheck, before taxes
| Pay period | Amount |
|---|---|
| Monthly | $3,824.17 |
| Semi-monthly (24 a year) | $1,912.08 |
| Biweekly (26 a year) | $1,765 |
| Weekly | $882.50 |
| Hourly | $22.06 |
Based on a full-time year of 2,080 hours. Convert any amount with the hourly to salary converter.
Buying a home? On a $45,890 salary, see how much house you can afford in Oklahoma at today's mortgage rates, or work out a payment with the mortgage calculator.
Water and Wastewater Treatment Plant and System Operators salary in cities in Oklahoma
| Metro area | Median salary | Workers |
|---|---|---|
| Oklahoma City, OK | $50,460 | 630 |
| Tulsa, OK | $49,990 | 620 |
| Fort Smith, AR-OK | $40,830 | 190 |
| Lawton, OK | $40,190 | 60 |
Highest-paying states for water and wastewater treatment plant and system operators
| State | Median salary |
|---|---|
| California | $81,770 |
| Nevada | $81,440 |
| Washington | $80,800 |
| Connecticut | $78,820 |
| New Jersey | $78,760 |
| Minnesota | $74,670 |
| Colorado | $74,200 |
| Oregon | $69,720 |
| Massachusetts | $68,550 |
| Illinois | $67,810 |
See Water and Wastewater Treatment Plant and System Operators pay in every state.
Related jobs in Oklahoma
| Job | Median salary | Hourly |
|---|---|---|
| Petroleum Pump System Operators, Refinery Operators, and Gaugers | $95,140 | $45.74 |
| Gas Plant Operator | $78,310 | $37.65 |
| Power Plant Operator | $88,590 | $42.59 |
| Stationary Engineers and Boiler Operators | $68,450 | $32.91 |
| Plant and System Operators, All Other | $74,240 | $35.69 |
| Power Distributors and Dispatchers | $105,530 | $50.74 |
| Miscellaneous Assemblers and Fabricators | $40,600 | $19.52 |
| Welders, Cutters, Solderers, and Brazers | $49,720 | $23.90 |
| First-Line Supervisors of Production and Operating Workers | $70,000 | $33.66 |
| Inspectors, Testers, Sorters, Samplers, and Weighers | $49,630 | $23.86 |
| Machinist | $51,120 | $24.58 |
| Packaging and Filling Machine Operators and Tenders | $39,310 | $18.90 |
| Electrical, Electronic, and Electromechanical Assemblers, Except Coil Winders, Tapers, and Finishers | $41,020 | $19.72 |
| Laundry and Dry-Cleaning Workers | $28,170 | $13.54 |
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 estimates, occupation code 51-8031. Wages include base pay, tips, commissions and shift pay, but not overtime, bonuses or benefits, and exclude the self-employed.
Frequently asked questions
How much does a water and wastewater treatment plant and system operators make in Oklahoma?
The median salary for water and wastewater treatment plant and system operators in Oklahoma is $45,890 a year, or $22.06 an hour. Pay ranges from $35,250 for the lowest-paid 10% to $63,040 for the top 10%.
How much do the highest-paid water and wastewater treatment plant and system operators make in Oklahoma?
The top 10% of water and wastewater treatment plant and system operators in Oklahoma earn at least $63,040 a year. The top 25% earn $52,000 or more.
What is the starting pay for water and wastewater treatment plant and system operators in Oklahoma?
Entry-level pay (the 10th percentile) is about $35,250 a year, and a quarter of water and wastewater treatment plant and system operators earn $38,130 or less.
How many water and wastewater treatment plant and system operators work in Oklahoma?
About 2,280 water and wastewater treatment plant and system operators are employed in Oklahoma, not counting the self-employed.