Salary data is based on the Urban Honolulu, HI metropolitan area and applied to Honolulu using local cost-of-living adjustments.

Environmental Engineers Salaries in Honolulu, HI

Average Base Pay

$105,050/yr

2% above national average

Monthly

$8,754

Hourly

$51

Cost Index

145

Environmental Engineers in Honolulu, HI earn an average of $105,050 per year, with most salaries falling between $84,040 and $126,060 depending on experience, employer, and specialization. At 2% above the national average, Honolulu ranks among the higher-paying markets for this role, in part reflecting a local cost of living index of 145. For professionals evaluating a move or negotiating an offer, the headline salary is only part of the picture—what matters most is how far that income actually goes once taxes, rent, and daily expenses are factored in. The sections below break that down in full for Honolulu.

Salary Range

The chart below shows the full compensation spectrum for this role, from entry-level to senior positions. The highlighted center bars represent the 25th–75th percentile band where most professionals are paid.

$79K
Low

$105K
Median

$131K
High

25th percentile: $89K75th percentile: $121K

About Environmental Engineers

Environmental Engineers develop solutions to environmental problems including air and water pollution, contaminated site remediation, waste management, and sustainability. They apply engineering principles alongside biology, chemistry, and ecology to design systems that protect human health and the natural environment. In water and wastewater engineering, they design treatment plants, distribution systems, and stormwater management infrastructure. In air quality, they design emission control systems for industrial facilities and model pollutant dispersion. In contaminated site remediation, they assess the extent of soil and groundwater contamination, design cleanup systems, and oversee remediation contractors. Environmental engineers must navigate complex regulatory frameworks—Clean Air Act, Clean Water Act, RCRA, CERCLA—and often interact with federal and state environmental agencies. They prepare environmental impact assessments for development projects, conduct environmental compliance audits for industrial operations, and develop environmental management systems. Increasing focus on climate change has expanded the role into greenhouse gas accounting, carbon management, and resilience planning.

What Environmental Engineers Do

Design water and wastewater treatment systems
Develop remediation plans for contaminated soil and groundwater
Prepare air emissions inventories and design control systems
Conduct environmental compliance audits for industrial facilities
Prepare environmental impact assessments and permit applications
Interact with regulatory agencies on permitting and enforcement matters
Perform environmental site assessments (Phase I and II ESAs)
Develop stormwater management plans and pollution prevention programs

Key Skills & Qualifications

Knowledge of environmental regulations (Clean Air Act, Clean Water Act, RCRA)
Environmental modeling for air, water, and groundwater systems
Site assessment and remediation design
Environmental permitting and regulatory agency interaction
GIS for environmental data mapping
Water and wastewater treatment process design
Technical report writing for regulatory submissions
PE licensure and CHMM or other environmental certifications

Career Path

Environmental Scientist / Environmental Engineer EIT
Environmental Engineer
Senior Environmental Engineer
Principal Environmental Engineer
Director of Environmental Services

Environmental Engineers Market in Honolulu, HI

Salary Competitiveness

Honolulu salaries for Environmental Engineers track closely with the national median, diverging by less than 4%. This alignment suggests a competitive but balanced local market—employers are broadly in step with national pay scales, which can make benchmark comparisons more reliable when negotiating.

Cost of Living Impact

The cost of living in Honolulu is well above the national average, and essential monthly expenses consume roughly 61% of take-home pay for this role. That compression means a higher gross salary buys less financial breathing room than the headline number suggests—particularly for housing, which tends to dominate the budget in high-cost markets.

Effective Purchasing Power

The purchasing power of $105,050 for a Environmental Engineers in Honolulu is moderate: enough to meet essential expenses and build incremental savings, but requiring deliberate budgeting to avoid margin erosion—especially as rent and healthcare costs have outpaced wage growth across many mid-tier markets.

vs. National Avg

+2%

Cost Pressure

61%

Purchasing Power

Moderate

Take-Home Pay Calculator

Enter any gross salary to see how federal and state taxes affect your actual take-home pay, broken down by year, month, and week. Results use an estimated effective tax rate of 27% based on this location and income level.

Annual Salary

Take-home (73%)Taxes (27%)

Annual Net

$76,687

Monthly

$6,391

Weekly

$1,475

Eff. Tax Rate

27%

A gross salary of $105,050 for a Environmental Engineers in Honolulu translates to roughly $6,391 in monthly take-home pay after estimated federal and state taxes. Set against monthly living costs of $3,885—covering housing, food, transportation, utilities, and healthcare—that leaves approximately $2,506 per month in disposable income. That margin, not the gross number, is what determines whether you can comfortably cover rent, build savings, and afford discretionary spending in Honolulu's current market.

How far does this salary go in Honolulu?

Cost of Living in Honolulu

Estimated monthly expenses for a single person in Honolulu, benchmarked against US regional price indices for housing, food, transportation, utilities, and healthcare.

Cost Index

145

High — US average is 100. Based on a single person (1-bed apartment).

🏠Housing / Rent$2,350/mo

🍔Food & Groceries$710/mo

🚗Transportation$155/mo

💡Utilities$275/mo

🏥Healthcare$395/mo

Monthly$3,885

Annual$46,620

Disposable Income$2,506

Financial Reality Check

This section compares estimated monthly take-home pay against typical living costs in Honolulu to show your real disposable income—the amount remaining after essential bills are paid each month.

Monthly Take-Home

$6,391

Living Costs

$3,885

Disposable

$2,506

Cost Index

145

Lifestyle

Moderate

With a monthly take-home of $6,391, your estimated living costs in Honolulu are $3,885 ($46,620/yr). This leaves $2,506 per month in disposable income, indicating a moderate standard of living. Honolulu's cost of living is 45% above the national average.

Overall, a Environmental Engineers earning $105,050 in Honolulu falls into a moderate lifestyle tier and can cover essentials and hit modest savings goals, though discretionary spending warrants careful planning. With a cost index of 145, Honolulu is 45% more expensive than the national average, which compresses real purchasing power. Regardless of tier, prioritizing retirement contributions, an emergency fund of three to six months' expenses, and incremental debt reduction will yield the greatest long-term financial stability—especially as living costs in Honolulu continue to evolve.