Marine Biologist Salary in Philadelphia, PA — 2026
Marine Biologist salary data for Philadelphia, PA — adjusted for local cost of living. Entry-level to senior pay ranges, take-home pay calculator, and local job market insights.
The median Marine Biologist salary in Philadelphia, PA is $68,340 per year ($5,695/month, $33/hr). This reflects the local cost of living index of 102, which is 2% above the national average.
Marine Biologist Take-Home Pay in Philadelphia
Tax Breakdown (Median Salary)
| Gross Annual | $68,340 |
| Federal Tax | -$6,205 |
| State Tax (3.1%) | -$2,098 |
| Local Tax (3.8%) | -$2,590 |
| FICA (SS + Medicare) | -$5,228 |
| Annual Take-Home | $52,219 |
| Monthly Take-Home | $4,352 |
Living Cost Comparison
Marine Biologist Requirements
Key Skills
Philadelphia Job Market Overview
Philadelphia, Pennsylvania has a population of 1,603,797 and an unemployment rate of 4.5%. The top industries are Healthcare, Education, Finance. The local job growth rate is 1.5%, and the average commute time is 33 minutes.
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Salary Percentile Breakdown — Marine Biologist in Philadelphia
Based on the cost-of-living-adjusted distribution for Marine Biologist in Philadelphia, PA, here's how earnings break down across the workforce:
| Percentile | Annual Salary | Hourly Equivalent | Career Stage |
|---|---|---|---|
| 10th (lowest) | $43,860 | $21/hr | Entry-level, < 1 yr exp. |
| 25th | $56,100 | $27/hr | Junior, 1-3 yrs exp. |
| 50th (median) | $68,340 | $33/hr | Mid-career, 2-4 years |
| 75th | $85,680 | $41/hr | Senior, 5-10 yrs exp. |
| 90th (top) | $115,260 | $55/hr | Lead/Principal, 10+ yrs |
Percentiles estimated using a log-normal salary distribution model calibrated to Marine Biologist compensation data. Top earners (P90) typically include managers, specialists with rare skills, or those at high-paying employers in Philadelphia's Healthcare sector.
5-Year Salary Trajectory
Marine Biologist salaries in Philadelphia have grown approximately 15.0% over the past 5 years, outpacing local CPI inflation in many cases. Here's the historical and projected trajectory:
Year-over-year, an average Marine Biologist can expect a 11.8% annual increase moving from entry to senior level over 6 years in Philadelphia. Negotiation, certifications (PADI Certification, Scientific Diving), and changing employers strategically can accelerate this trajectory.
Philadelphia vs National Average
The national median Marine Biologist salary is $67,000. In Philadelphia, the cost-of-living-adjusted median of $68,340 is 2.0% above the national figure. This reflects Philadelphia's cost of living index of 102 (higher than the national average of 100).
For Marine Biologists, this means: rent typically consumes 32.2% of take-home pay (households spending >30% are considered rent-burdened), and a median home in Philadelphia costs about 4.4× annual take-home. Homeownership is relatively attainable on this salary in Philadelphia.
Industry Context: Healthcare in Philadelphia
Philadelphia's economy is anchored by Healthcare, Education, Finance, with 1,603,797 residents and 4.5% unemployment as of 2026. Marine Biologists working in the Healthcare sector typically earn at or above the local median due to industry-specific demand. The state's overall job growth rate is 1.5%, and Marine Biologist occupations specifically are projected to grow 5.0% nationally through 2034 (BLS Occupational Outlook Handbook).
Methodology & Data Sources
How we calculate Marine Biologist salaries in Philadelphia, PA:
- Base salary model starts with Salario occupation data and public wage references, including BLS OEWS and O*NET when a direct or related occupational crosswalk is available. For niche titles, we do not treat a broader SOC family as an exact job-title wage.
- Cost-of-living adjustment applied using the Philadelphia index of 102 relative to the national baseline of 100, with local rent, home price, unemployment, and tax inputs checked separately.
- Percentile distribution (P10-P90) estimated from the entry, median, senior, and top compensation tiers in the Salario salary model rather than claimed as exact employer payroll data.
- Take-home pay calculated using 2026 federal tax brackets (10%-37%), PA state income tax of 3.1%, Philadelphia local tax of 3.8%, and FICA (Social Security 6.2% + Medicare 1.45%).
- Tax brackets and standard deduction ($16,100 single filer for tax year 2026) sourced from IRS Revenue Procedure 2025-32 and updated annually.
Authoritative data sources:
- BLS Occupational Employment and Wage Statistics — national and metro-area salary data
- O*NET OnLine — occupation tasks, alternate job titles, skills, and SOC crosswalks
- BLS Occupational Outlook Handbook — occupation outlook where a matching profile is available
- BLS Consumer Price Index (CPI-U) — regional inflation and cost-of-living data
- U.S. Census Bureau — Philadelphia QuickFacts — population and demographic data
- IRS Revenue Procedure 2025-32 summary — 2026 federal tax brackets and standard deductions
- BLS Local Area Unemployment Statistics — Philadelphia unemployment rate
Last reviewed: 2026. Salary data updated annually as new BLS releases become available. Marine Biologist salaries can vary significantly based on employer, sector (Healthcare vs others in Philadelphia), specific skill set (Marine Ecology, Fieldwork, Data Analysis), and individual negotiation. Always verify current compensation through multiple sources before making career decisions.
Frequently Asked Questions
What is the average Marine Biologist salary in Philadelphia, PA?
How much does a Marine Biologist take home in Philadelphia after taxes?
Is Philadelphia a good city for Marine Biologists?
What skills are needed for a Marine Biologist in Philadelphia?
How does Marine Biologist salary in Philadelphia compare to the national average?
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Frequently Asked Questions
What is the average Marine Biologist salary in Philadelphia, PA?
The median Marine Biologist salary in Philadelphia, PA is $68,340 per year as of 2026. This is adjusted for the local cost of living index of 102. Entry-level Marine Biologists earn around $43,860, while senior-level professionals can earn $85,680 or more.
How much does a Marine Biologist take home in Philadelphia after taxes?
A Marine Biologist earning the median salary of $68,340 in Philadelphia, PA takes home approximately $52,219 per year ($4,352/month) after federal, state, and local taxes. The effective tax rate is 23.6%.
Is Philadelphia a good city for Marine Biologists?
Philadelphia, PA has a cost of living index of 102 (above national average). Marine Biologists here earn above the city median. The local unemployment rate is 4.5% and top industries include Healthcare, Education, Finance.
What skills are needed for a Marine Biologist in Philadelphia?
Key skills for Marine Biologists include Marine Ecology, Fieldwork, Data Analysis, Scuba Diving, GIS. Typical education requirement is Master's Degree. Valuable certifications include PADI Certification, Scientific Diving.
How does Marine Biologist salary in Philadelphia compare to the national average?
The national median Marine Biologist salary is $67,000. In Philadelphia, the adjusted salary is $68,340, which is 2.0% higher than the national average, reflecting the local cost of living.