Water and Wastewater Treatment Plant and System Operators Salary by State (2025)

Last updated: 2025 BLS data · Page refreshed: 2026-05-19

Compare Water and Wastewater Treatment Plant and System Operators salaries across 50 states

$59,966

National Average (Median)

$81,770

Highest: California

$44,320

Lowest: Arkansas

Water and Wastewater Treatment Plant and System Operators Salary by State

Compare Water and Wastewater Treatment Plant and System Operators salaries across all 50 states. Click any state for the full breakdown.

$44,320

$81,770

Source: Bureau of Labor Statistics, OEWS 2025 Annual

AL $51,870 AK $60,160 AZ $61,340 AR $44,320 CA $81,770 CO $74,200 CT $78,820 DE $64,940 FL $59,030 GA $48,930 HI $65,560 ID $52,210 IL $67,810 IN $53,540 IA $60,990 KS $46,780 KY $45,430 LA $46,210 ME $61,870 MD $61,870 MA $68,550 MI $59,270 MN $74,670 MS $46,480 MO $49,940 MT $58,040 NE $61,220 NV $81,440 NH $62,940 NJ $78,760 NM $48,190 NY $63,990 NC $51,680 ND $60,470 OH $59,170 OK $45,890 OR $69,720 PA $63,310 RI $61,820 SC $52,090 SD $53,370 TN $50,670 TX $49,460 UT $61,290 VT $63,640 VA $59,420 WA $80,800 WV $47,560 WI $63,550 WY $63,260

Top 5 Highest-Paying States

California

$81,770

Nevada

$81,440

Washington

$80,800

Connecticut

$78,820

New Jersey

$78,760

Water and Wastewater Treatment Plant and System Operators Salary in All 50 States

#	State	Median Salary	Mean Salary	Employment
1	California	$81,770	$87,190	11,630
2	Nevada	$81,440	$80,880	N/A
3	Washington	$80,800	$82,770	2,030
4	Connecticut	$78,820	$78,890	980
5	New Jersey	$78,760	$77,530	2,500
6	Minnesota	$74,670	$71,490	2,290
7	Colorado	$74,200	$72,670	2,620
8	Oregon	$69,720	$70,620	1,240
9	Massachusetts	$68,550	$69,900	2,510
10	Illinois	$67,810	$71,820	3,500
11	Hawaii	$65,560	$64,550	610
12	Delaware	$64,940	$66,310	340
13	New York	$63,990	$69,680	5,300
14	Vermont	$63,640	$67,130	320
15	Wisconsin	$63,550	$64,070	2,230
16	Pennsylvania	$63,310	$64,020	4,660
17	Wyoming	$63,260	$71,550	500
18	New Hampshire	$62,940	$64,810	510
19	Maine	$61,870	$65,010	710
20	Maryland	$61,870	$64,570	1,770
21	Rhode Island	$61,820	$64,260	420
22	Arizona	$61,340	$61,160	3,950
23	Utah	$61,290	$61,930	1,900
24	Nebraska	$61,220	$60,380	740
25	Iowa	$60,990	$60,790	2,370
26	North Dakota	$60,470	$62,080	550
27	Alaska	$60,160	$68,600	750
28	Virginia	$59,420	$60,500	3,460
29	Michigan	$59,270	$60,080	3,400
30	Ohio	$59,170	$58,990	5,870
31	Florida	$59,030	$61,180	7,440
32	Montana	$58,040	$61,570	690
33	Indiana	$53,540	$56,680	3,140
34	South Dakota	$53,370	$55,750	1,060
35	Idaho	$52,210	$55,060	1,480
36	South Carolina	$52,090	$55,910	2,650
37	Alabama	$51,870	$55,300	2,770
38	North Carolina	$51,680	$54,620	3,620
39	Tennessee	$50,670	$53,790	3,140
40	Missouri	$49,940	$53,190	3,000
41	Texas	$49,460	$51,920	10,520
42	Georgia	$48,930	$51,630	3,310
43	New Mexico	$48,190	$53,870	2,110
44	West Virginia	$47,560	$50,590	1,100
45	Kansas	$46,780	$49,290	1,560
46	Mississippi	$46,480	$49,060	1,150
47	Louisiana	$46,210	$48,160	2,450
48	Oklahoma	$45,890	$47,350	2,280
49	Kentucky	$45,430	$47,770	2,540
50	Arkansas	$44,320	$45,590	2,010

Water and Wastewater Treatment Plant and System Operators Take-Home Pay After Taxes

Gross salary only tells half the story. State income taxes vary from 0% to 13.3%, dramatically affecting your take-home pay. See exactly what a Water and Wastewater Treatment Plant and System Operators keeps after federal, state, and FICA taxes.

Take-Home in California → Take-Home in Nevada → Take-Home in Washington →

Data Source & Methodology

Salary data is sourced from the U.S. Bureau of Labor Statistics (BLS) Occupational Employment and Wage Statistics (OEWS) survey, 2025 estimates. After-tax figures use IRS federal brackets and state income tax rates for all 50 states.

Our Methodology · Data Sources · Source: BLS OEWS