Architecture and Engineering

Water/Wastewater Engineer Salary (2026), outlook and how to become one

Design or oversee projects involving provision of potable water, disposal of wastewater and sewage, or prevention of flood-related damage.

Median pay
$100,840
Growth to 2035
+6.4%
Openings a year
22,700
Typical entry
Bachelor's

The median pay for Water/Wastewater Engineers is $100,840 a year ($48.48/hr), according to BLS OEWS, May 2025. Employment is projected to grow 6.4% through 2035, with about 22,700 openings a year (BLS EP, 2025–2035). Typical entry-level education: Bachelor's degree.

  • SOC 17-2051
  • Architecture and Engineering
  • Last updated October 15, 2026

At a glance

Water/Wastewater Engineer in four numbers

Median pay
$100,840a year, or $48.48/hr
Lowest 10% $68KTop 10% $163K

US median, all jobs: $50,980

BLS OEWS, May 2025
Projected growth
+6.4%Faster than average
This career
+6.4%
All jobs
+3.5%
Projected employment change, 2025–2035
ItemValue
This career+6.4%
All jobs+3.5%
BLS EP, 2025–2035
Openings a year
22,700380,600 jobs today
  • Jobs in 2025380.6K
  • Projected 2035405.1K
Employment, 2025–2035
ItemValue
Jobs in 2025380.6K
Projected 2035405.1K
BLS EP, 2025–2035
Typical education
Bachelor'sneeded to enter
  • Bachelor's69.6%
  • Master's26.1%
  • Professional degree4.4%
Highest education held by water/wastewater engineers
SegmentValue
Bachelor's69.6%
Master's26.1%
Professional degree4.4%
BLS EP, 2025–2035; mix: O*NET

Also advertised as: Consulting Engineer, County Engineer, Engineer, Project Development Engineer.

Pay

How much do water/wastewater engineers make?

Water/Wastewater Engineers earn a median of $100,840 a year ($48.48 an hour, or about $8,400 a month); the lowest-paid 10% earn less than $68,240 and the top 10% more than $163,220 (BLS OEWS, May 2025).

The best-paying state is California, with a median of $122,500. See Water/wastewater engineer salary in California and every other state. By city, pay is highest around San Jose ($137,900 average): salary in every city.

Annual pay, lowest-paid to highest-paid

Every water/wastewater engineer in the US, by percentile of annual wage

Median

$100,840

Middle half earn $79,930 to $129,680

10th
$68,240
25th
$79,930
75th
$129,680
90th
$163,220

All US occupations: $50,980

Water/Wastewater Engineer annual wages
PercentileValue
10th$68,240
25th$79,930
Median$100,840
75th$129,680
90th$163,220
All US occupations$50,980

Source: BLS OEWS, May 2025

Median annual wage
$100,840
Median hourly wage
$48.48/hr
Mean annual wage
$108,670
People employed
367,840

Versus all US occupations

At $100,840, Water/Wastewater Engineers earn 98% above the $50,980 median across all US occupations, a difference of $49,860 a year.

Versus architecture and engineering occupations

Inside the Architecture and Engineering group, where the middle occupation pays $104,110, this is 3% below the group median.

Pay range

The top 10% earn $163,220 or more while the bottom 10% earn $68,240, a gap of 2.4×. That is a typical spread for a US occupation.

Rank in the bank

This median pays more than 73% of the 1,741 occupations in the NueCareer career bank.

Cost of living

California posts the highest raw median ($122,500), but once local prices are taken into account Louisiana leads at $119,469 in national-average dollars.

Pay by state

Which states pay water/wastewater engineers the most?

State medians come from the same OEWS release as the national figures. The cost-of-living column divides each state median by that state's BEA Regional Price Parity, restating pay in national-average dollars so a high-cost state and a low-cost one can be compared directly.

Top 10 states by median annual wage for Water/Wastewater Engineers
StateMedianCOL-adjustedEmployed
1California$122,500$110,63955,180
2Alaska$114,730$112,0861,670
3Washington$110,000$102,79112,590
4Massachusetts$106,730$100,9209,450
5Louisiana$105,380$119,4693,780
6Oregon$105,250$101,8284,890
7New Jersey$104,660$96,1906,900
8Nevada$104,310$104,3323,560
9New Mexico$103,900$112,6751,350
10District of Columbia$103,880$94,5211,650
See all 53 states, sortable, with cost-of-living adjustments

Job outlook

Is water/wastewater engineer a growing career?

Projected change in jobs

Employment change over 2025–2035, against every US occupation

Water/Wastewater Engineers
+6.4%
All US occupations
+3.5%

Faster than average. +6.4% projected growth vs 3.5% for all occupations.

Projected employment change, 2025–2035
ItemValue
Water/Wastewater Engineers+6.4%
All US occupations+3.5%

Source: BLS EP, 2025–2035

Faster than average

BLS projects employment of Water/Wastewater Engineers to change 6.4% over 2025–2035, against 3.5% projected for all occupations. That is 24,500 more jobs.

Annual openings

About 22,700 openings are projected each year, 6.0% of the 380,600 jobs that existed in 2025. Most come from workers leaving the occupation, not from growth alone.

Many of those openings are expected to result from the need to replace workers who transfer to different occupations or exit the labor force, such as to retire.

With continued investment in U.S. infrastructure, civil engineers will be needed to manage projects that meet society's need for upgrading bridges, roads, water systems, buildings, and other structures. In addition, more waste treatment plants will be needed to help clean the nation’s waterways, and water systems must be maintained to reduce or eliminate loss of potable water.

Public projects may depend on funding from federal, state, and local governments. Employment of civil engineers may fluctuate with the availability of project funds.

AI exposure: high

BLS places this occupation in its high relative AI exposure category, above the middle of the pack: a substantial share of the work overlaps with what AI can do.

Getting in

How to become a water/wastewater engineer

Civil engineers typically need a bachelor’s degree in civil engineering or a related field. Although licensure requirements vary by state, civil engineers usually must be licensed if they provide services directly to the public.

  1. 1

    Typical entry-level education

    Bachelor's degree

  2. 2

    Work experience in a related occupation

    None

  3. 3

    Typical on-the-job training

    None

  4. 4

    Preparation needed (O*NET job zone)

    Considerable preparation

BLS Employment Projections, 2025–2035; job zone from O*NET 31.0 Database.

What education people in the job have

O*NET incumbent survey: the highest level of education reported by people already working as water/wastewater engineers.

  • Bachelor's Degree69.6%
  • Master's Degree26.1%
  • First Professional Degree4.4%
Highest education held by water/wastewater engineers
ItemValue
Bachelor's Degree69.6%
Master's Degree26.1%
First Professional Degree4.4%

Source: O*NET 31.0 Database

Full BLS Occupational Outlook Handbook entry

The work

What does a water/wastewater engineer do?

Design or oversee projects involving provision of potable water, disposal of wastewater and sewage, or prevention of flood-related damage. Prepare environmental documentation for water resources, regulatory program compliance, data management and analysis, and field work. Perform hydraulic modeling and pipeline design.

Civil engineers plan, design, and supervise the construction and maintenance of building and infrastructure projects. These projects may include facilities, bridges, roads, tunnels, and water and sewage systems.

Day-to-day tasks

  1. Provide technical direction or supervision to junior engineers, engineering or computer-aided design (CAD) technicians, or other technical personnel.
  2. Design sludge treatment plants.
  3. Conduct feasibility studies for the construction of facilities, such as water supply systems, runoff collection networks, water and wastewater treatment plants, or wastewater collection systems.
  4. Design domestic or industrial water or wastewater treatment plants, including advanced facilities with sequencing batch reactors (SBR), membranes, lift stations, headworks, surge overflow basins, ultraviolet disinfection systems, aerobic digesters, sludge lagoons, or control buildings.
  5. Design or select equipment for use in wastewater processing to ensure compliance with government standards.
  6. Design water or wastewater lift stations, including water wells.
  7. Provide technical support on water resource or treatment issues to government agencies.
  8. Analyze and recommend sludge treatment or disposal methods.

O*NET core tasks, ordered by reported importance.

Working conditions and hours

Most civil engineers work full time, and some work more than 40 hours per week. Engineers who direct projects sometimes work extra hours to ensure that designs meet requirements and that the projects are on track to meet deadlines.

Where the work happens

  • Indoors, climate-controlled

    NeverEvery day
  • Outdoors in all weather

    NeverEvery day

Physical demands

  • Sitting

    NeverAlmost all the time

    Seated for more than half the working day.

  • Standing

    NeverAlmost all the time
  • Bending or twisting

    NeverAlmost all the time

Working with people

  • Contact with other people

    NoneConstant
  • Face-to-face discussions

    NeverEvery day

    Face-to-face discussions every day.

  • Dealing with the public

    Not importantExtremely important

Pressure and stakes

  • Strict deadlines

    NeverEvery day
  • Conflict situations

    NeverEvery day
  • Cost of a mistake

    Not seriousExtremely serious

Autonomy

  • Freedom to decide

    NoneA lot

Schedules: BLS Occupational Outlook Handbook, 2025–2035 edition. Conditions: O*NET Work Context survey. Each item has its own scale, so each dot is read against the two answers that end its own line.

Where water/wastewater engineers work

Share of jobs by employer type

  • Engineering services51%
  • State government, excluding education and hospitals11%
  • Local government, excluding education and hospitals10%
  • Nonresidential building construction7%
  • Federal government, excluding postal service3%
Largest employers of Water/Wastewater Engineers
ItemValue
Engineering services51%
State government, excluding education and hospitals11%
Local government, excluding education and hospitals10%
Nonresidential building construction7%
Federal government, excluding postal service3%

Source: BLS Occupational Outlook Handbook, 2025–2035 edition

Core skills

O*NET importance, 1 to 5

  • Reading Comprehension4.0
  • Writing4.0
  • Critical Thinking4.0
  • Active Listening3.9
  • Mathematics3.9
  • Speaking3.8
  • Monitoring3.6
  • Science3.5
Core skills for Water/Wastewater Engineers
ItemValue
Reading Comprehension4.0
Writing4.0
Critical Thinking4.0
Active Listening3.9
Mathematics3.9
Speaking3.8
Monitoring3.6
Science3.5

Source: O*NET 31.0 Database

Transferable skills

O*NET importance, 1 to 5

  • Judgment and Decision Making4.0
  • Complex Problem Solving3.9
  • Systems Analysis3.9
  • Systems Evaluation3.9
  • Time Management3.8
  • Operations Analysis3.3
  • Management of Personnel Resources3.3
  • Coordination3.1
Transferable skills for Water/Wastewater Engineers
ItemValue
Judgment and Decision Making4.0
Complex Problem Solving3.9
Systems Analysis3.9
Systems Evaluation3.9
Time Management3.8
Operations Analysis3.3
Management of Personnel Resources3.3
Coordination3.1

Source: O*NET 31.0 Database

Tools and software

  • Computer aided design CAD software · in demand
  • Data base user interface and query software · in demand
  • Electronic mail software · in demand
  • Enterprise resource planning ERP software · in demand
  • Geographic information system · in demand
  • Internet browser software · in demand
  • Object or component oriented development software · in demand
  • Office suite software · in demand
  • Operating system software · in demand
  • Presentation software · in demand
  • Project management software · in demand
  • Spreadsheet software · in demand

“In demand” marks an O*NET Employer-Based Hot Technology, software named in real job postings for this occupation.

The workforce

Who works as a water/wastewater engineer?

Women make up 21.8% of water/wastewater engineers, against 47.1% of all employed people: more men than in the workforce as a whole.

21.0% are 55 or older, close to the 23.2% across all jobs.

The median worker is 41.3 years old (all workers: 42.1).

Women
21.8%All workers 47.1% · BLS CPS, 2025
Median age
41.3All workers 42.1 · BLS CPS, 2025
Aged 55+
21.0%All workers 23.2% · BLS CPS, 2025
Employed (CPS)
525,000BLS CPS, 2025
Share of water/wastewater engineers by sex, race, ethnicity and age, against all employed people
GroupShare of water/wastewater engineersAll employed people
Women
21.8%
47.1%
White
78.0%
75.7%
Black or African American
9.0%
12.7%
Asian
10.7%
7.5%
Hispanic or Latino (any race)
12.5%
20.0%
Aged 55 and over
21.0%
23.2%
Aged 16 to 24
9.3%
12.2%

Current Population Survey annual averages, 2025 (BLS tables 11 and 11b). Race groups can overlap with Hispanic or Latino ethnicity, so they do not sum to 100%.

Personality fit

What personality type suits a water/wastewater engineer?

Interest profile

O*NET Occupational Interests (RIASEC), scored 1 to 7

Water/Wastewater Engineer · Realistic: 6Water/Wastewater Engineer · Investigative: 5Water/Wastewater Engineer · Artistic: 2Water/Wastewater Engineer · Social: 2Water/Wastewater Engineer · Enterprising: 3Water/Wastewater Engineer · Conventional: 5
Water/Wastewater Engineer interest profile
AxisWater/Wastewater Engineer
Realistic6
Investigative5
Artistic2
Social2
Enterprising3
Conventional5

Source: O*NET 31.0 Database

What the work is built around

Day to day this is work built around hands-on, practical work with tools, machines or the outdoors, combined with investigating, analysing and solving problems with ideas and data.

  • Realistic5.6
  • Investigative5.3
  • Conventional4.5
  • Enterprising2.9
  • Artistic1.9
  • Social1.8

Closest MBTI types

NueCareer fit scores: cosine similarity between each MBTI type's interest vector and this occupation's O*NET interest profile. Not a BLS or O*NET figure; the method is documented on our methodology page.

Questions

Water/Wastewater Engineer: frequently asked questions

How much do water/wastewater engineers make?

Water/Wastewater Engineers earn a median of $100,840 a year (BLS OEWS, May 2025). That is 98% above the $50,980 median for all US occupations. That works out at $48.48/hr. The middle half earn between $79,930 and $129,680. The top 10% earn $163,220 or more.

How much do water/wastewater engineers make an hour?

The median hourly wage for water/wastewater engineers is $48.48 (BLS OEWS, May 2025). On a full-year basis the $100,840 annual median works out to about $8,400 a month before tax.

What is the starting salary for a water/wastewater engineer?

BLS does not publish a starting salary. The nearest measure is the low end of the pay range: the lowest-paid 10% of water/wastewater engineers earn less than $68,240 a year and the bottom quarter less than $79,930 (BLS OEWS, May 2025). New workers often start near that end, but where a particular job starts depends on the employer, the state and the credentials you bring, so read these as the bottom of the range rather than a guaranteed entry wage.

Do water/wastewater engineers make $100k?

Yes, more often than not. The median is $100,840, so more than half of water/wastewater engineers earn over $100,000 a year (BLS OEWS, May 2025). In 21 states the median itself is above $100,000: California ($122,500), Alaska ($114,730), Washington ($110,000), Massachusetts ($106,730), and 17 more.

Which states pay water/wastewater engineers the most?

The highest state medians for Water/Wastewater Engineers are California ($122,500), Alaska ($114,730), Washington ($110,000) (BLS OEWS, May 2025). Adjusted for local prices using BEA Regional Price Parities, Louisiana moves to the top at $119,469.

What kind of water/wastewater engineer earns the most?

BLS does not split water/wastewater engineers' pay by specialty or employer, but its range shows how far the top end runs: the highest-paid 10% earn more than $163,220, against a median of $100,840 (BLS OEWS, May 2025). Location moves pay the most in the published data: the best-paying states are California ($122,500), Alaska ($114,730), Washington ($110,000).

Do you need a degree to become a water/wastewater engineer?

Yes. BLS reports a bachelor's degree as the typical entry-level education for Water/Wastewater Engineers, and O*NET rates the preparation needed as considerable preparation. In O*NET's survey of people already doing the job, 69.6% hold bachelor's degree.

How long does it take to become a water/wastewater engineer?

BLS does not publish a fixed length; it depends on the route. What it does publish: the typical way in for water/wastewater engineers is a bachelor's degree. O*NET classes the work as needing considerable preparation.

Is water/wastewater engineer a growing career?

Yes. Employment is projected to grow 6.4% over 2025–2035, faster than the 3.5% average for all occupations (BLS EP, 2025–2035). BLS still projects about 22,700 openings a year, mostly from workers retiring or moving to other work.

What does a water/wastewater engineer do?

Civil engineers plan, design, and supervise the construction and maintenance of building and infrastructure projects. A core O*NET task: provide technical direction or supervision to junior engineers, engineering or computer-aided design (CAD) technicians, or other technical personnel. Employers most often ask for Computer aided design CAD software, Data base user interface and query software, Electronic mail software.

Do water/wastewater engineers work 40 hours a week?

Most work more than 40. In O*NET's survey of people in the job, 65% of water/wastewater engineers usually work more than 40 hours a week, 35% work exactly 40 and 0% work fewer. 83% say their schedule is regular and 17% irregular. Source: O*NET 31.0 Database, Work Context.

What personality type suits a water/wastewater engineer?

O*NET scores Water/Wastewater Engineers highest on the Realistic, Investigative and Conventional interest areas, so the work mixes hands-on, practical work with tools, machines or the outdoors with investigating, analysing and solving problems with ideas and data. On NueCareer's MBTI-to-interest mapping the closest types are ISTJ, ISTP. Personality is a fit signal, not a gate. The free NueCareer quiz scores your own profile against all 1,731 careers in the bank.

What percentage of water/wastewater engineers are women?

Women make up 21.8% of water/wastewater engineers, against 47.1% of all employed people: more men than in the workforce as a whole. 21.0% are 55 or older, close to the 23.2% across all jobs. The median worker is 41.3 years old (all workers: 42.1). Source: BLS Current Population Survey, 2025 annual averages.