Water and Wastewater Treatment Plant and System Operators Salary in Illinois
State wage data from the BLS OEWS survey, May 2025.
Median annual
$67,810
Median hourly
$33
Average annual
$71,820
Employed in state
3.5K
The median annual salary for Water and Wastewater Treatment Plant and System Operators in Illinois is $67,810, or about $33 an hour. That is 13% higher than the national median.
Pay in Illinois ranges from $42,240 at the 10th percentile to $103,690 at the 90th percentile. Roughly 3.5K people work as water and wastewater treatment plant and system operators in the state.
Pay distribution in Illinois
10th$42,240
25th$55,260
Median$67,810
75th$83,140
90th$103,690
Salary calculator
- Hourly
- $32.60
- Daily
- $261
- Weekly
- $1,304
- Bi-weekly
- $2,608
- Monthly
- $5,651
- Annual
- $67,810
$67,810 a year is around the 50th percentile for Water and Wastewater Treatment Plant and System Operatorss in Illinois. The median is $67,810.
Water and Wastewater Treatment Plant and System Operators pay by metro area in Illinois
| Metro area | Median annual | Employment |
|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | $79,290 | 1.8K |
| Bloomington, IL | $79,220 | 60 |
| Rockford, IL | $77,830 | 90 |
| Davenport-Moline-Rock Island, IA-IL | $63,440 | 220 |
| Decatur, IL | $62,150 | 50 |
| Champaign-Urbana, IL | $61,720 | 90 |
| Peoria, IL | $60,380 | 120 |
| Kankakee, IL | $59,870 | 70 |
| Springfield, IL | $58,990 | 50 |
| St. Louis, MO-IL | $57,850 | 1.2K |
| Paducah, KY-IL | $52,160 | 70 |
| Cape Girardeau, MO-IL | $50,960 | 60 |
Other jobs in Illinois
- Laborers and Freight, Stock, and Material Movers, Hand$40,240
- General and Operations Managers$105,770
- Cashiers$32,880
- Registered Nurses$97,550
- Home Health and Personal Care Aides$35,800
- Fast Food and Counter Workers$31,200
- Retail Salespersons$35,410
- Stockers and Order Fillers$37,330
- Customer Service Representatives$44,770
- Office Clerks, General$45,010
- Janitors and Cleaners, Except Maids and Housekeeping Cleaners$36,840
- Heavy and Tractor-Trailer Truck Drivers$58,640
- Miscellaneous Assemblers and Fabricators$44,650
- Secretaries and Administrative Assistants, Except Legal, Medical, and Executive$47,540
- Waiters and Waitresses$35,230
- Sales Representatives of Services, Except Advertising, Insurance, Financial Services, and Travel$69,990
- Nursing Assistants$42,260
- Maintenance and Repair Workers, General$49,590
- Teaching Assistants, Except Postsecondary$36,780
- Elementary School Teachers, Except Special Education$63,970