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Wastewater treatment engineer salary
Average wastewater treatment engineer salary
$75,324
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Let Zippia find your next wastewater treatment engineer job
Average wastewater treatment engineer salary by state
Highest paying states for wastewater treatment engineers
| Rank | State | Avg. salary | Hourly rate |
|---|---|---|---|
| 1 | Oregon | $99,767 | $47.96 |
| 2 | California | $105,529 | $50.74 |
| 3 | District of Columbia | $100,447 | $48.29 |
| 4 | New Hampshire | $90,704 | $43.61 |
| 5 | Washington | $88,971 | $42.77 |
| 6 | Massachusetts | $92,281 | $44.37 |
| 7 | Maine | $98,475 | $47.34 |
| 8 | Delaware | $86,383 | $41.53 |
| 9 | Connecticut | $93,898 | $45.14 |
| 10 | Nevada | $87,750 | $42.19 |
| 11 | Vermont | $88,012 | $42.31 |
| 12 | Louisiana | $90,966 | $43.73 |
| 13 | Virginia | $84,846 | $40.79 |
| 14 | New York | $87,706 | $42.17 |
| 15 | Maryland | $86,623 | $41.65 |
| 16 | Idaho | $88,062 | $42.34 |
| 17 | Rhode Island | $86,515 | $41.59 |
| 18 | Arizona | $82,595 | $39.71 |
| 19 | Michigan | $84,058 | $40.41 |
| 20 | Alaska | $89,530 | $43.04 |
| 21 | Texas | $80,095 | $38.51 |
| 22 | New Jersey | $88,289 | $42.45 |
| 23 | Pennsylvania | $82,385 | $39.61 |
| 24 | New Mexico | $83,439 | $40.11 |
| 25 | North Dakota | $79,608 | $38.27 |
| 26 | West Virginia | $82,227 | $39.53 |
| 27 | North Carolina | $71,640 | $34.44 |
| 28 | Colorado | $69,856 | $33.58 |
| 29 | Illinois | $73,830 | $35.50 |
| 30 | Georgia | $70,408 | $33.85 |
| 31 | Nebraska | $67,616 | $32.51 |
| 32 | Kentucky | $74,505 | $35.82 |
| 33 | Wisconsin | $66,938 | $32.18 |
| 34 | Arkansas | $69,217 | $33.28 |
| 35 | Iowa | $69,373 | $33.35 |
| 36 | Oklahoma | $71,026 | $34.15 |
| 37 | Florida | $65,057 | $31.28 |
| 38 | Utah | $64,608 | $31.06 |
| 39 | Ohio | $67,677 | $32.54 |
| 40 | Minnesota | $65,712 | $31.59 |
| 41 | Tennessee | $66,982 | $32.20 |
| 42 | Indiana | $64,462 | $30.99 |
| 43 | Montana | $65,977 | $31.72 |
| 44 | Wyoming | $56,646 | $27.23 |
| 45 | Alabama | $58,498 | $28.12 |
| 46 | Hawaii | $53,475 | $25.71 |
| 47 | Kansas | $64,773 | $31.14 |
| 48 | South Dakota | $63,997 | $30.77 |
| 49 | South Carolina | $59,036 | $28.38 |
| 50 | Mississippi | $62,577 | $30.09 |
| 51 | Missouri | $55,011 | $26.45 |
Wastewater treatment engineer salary details
A wastewater treatment engineer's salary ranges from $41,000 a year at the 10th percentile to $138,000 at the 90th percentile.
What is a wastewater treatment engineer's salary?
| Percentile | Annual salary | Monthly salary | Hourly rate |
|---|---|---|---|
| 90th Percentile | $138,000 | $11,500 | $66 |
| 75th Percentile | $103,000 | $8,583 | $50 |
| Average | $75,324 | $6,277 | $36 |
| 25th Percentile | $54,000 | $4,500 | $26 |
| 10th Percentile | $41,000 | $3,417 | $20 |
Highest paying wastewater treatment engineer jobs
The highest paying types of wastewater treatment engineers are director water and waste services, senior engineer, and water engineer.
| Job title | Annual salary | Monthly salary | Hourly rate | Job openings |
|---|---|---|---|---|
| Engineer | $92,076 | $7,673 | $44.27 | 618,207 |
| Water Resources Engineer | $80,432 | $6,703 | $38.67 | 38,911 |
| Water Engineer | $98,752 | $8,229 | $47.48 | 8,851 |
| Water/Wastewater Engineer | $85,682 | $7,140 | $41.19 | 7,052 |
| Wastewater Project Engineer | $76,181 | $6,348 | $36.63 | 23,130 |
Top companies hiring wastewater treatment engineers now:
Wage gap by gender, race and education
Wastewater treatment engineer salary trends
The average wastewater treatment engineer salary has risen by $10,687 over the last ten years. In 2014, the average wastewater treatment engineer earned $64,637 annually, but today, they earn $75,324 a year. That works out to a 9% change in pay for wastewater treatment engineers over the last decade.
Compare wastewater treatment engineer salaries for cities or states with the national average over time.
Average wastewater treatment engineer salary over time
Compare wastewater treatment engineer salaries for individual cities or states with the national average.
Wastewater treatment engineer salary by year
| Year | Avg. salary | Hourly rate | % Change |
|---|---|---|---|
| 2025 | $75,300 | $36.21 | +3.5% |
| 2024 | $72,700 | $34.93 | +1.4% |
| 2023 | $71,600 | $34.44 | +0.9% |
| 2022 | $71,000 | $34.12 | +2.2% |
| 2021 | $69,400 | $33.37 | +0.4% |
Recently added wastewater treatment engineer salaries
| Company | Job | Location | Date added | Salary |
|---|---|---|---|---|
| Corning | Wastewater Treatment Engineer | Hemlock, MI | 06/13/2025 | $94,161 |
| Trihydro | Civil/Water Wastewater Treatment Engineer | Tulsa, OK | 05/03/2025 | $112,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | Denver, CO | 04/29/2025 | $110,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | Phoenix, AZ | 04/29/2025 | $110,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | San Diego, CA | 04/29/2025 | $110,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | Portland, OR | 04/27/2025 | $110,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | Seattle, WA | 04/21/2025 | $110,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | Virginia Beach, VA | 04/21/2025 | $110,000 |
| Kennedy/Jenks Consultants | Municipal Wastewater Treatment Engineer | Dallas, TX | 04/11/2025 | $110,000 |
| Alliance of Professionals & Consultants, Inc. | Wastewater Treatment Pe/Pm | Wilmington, NC | 04/02/2025 | $110,000 |
Wastewater treatment engineer salary FAQs
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