Hydrologists: Salary, Education, and Career Path (2026)
The U.S. has 5,720 hydrologists, and they earn a median of $92,060/year. The range runs from $60K to $139K. Maryland pays the most.
What it takes
The BLS lists the typical education for this role as varies by employer.
Entry-level hydrologists start around $60K. The gap between that and the median ($92K) is where experience, certifications, and location make the difference.
Top earners clear $139K, but that's the 90th percentile. Getting there usually takes a decade or more of experience, the right credentials, and being in a high-paying market.
Salary progression
Highest paying states
| State | Median salary | Employment |
|---|---|---|
| Maryland | $134K | 70 |
| Virginia | $126K | 40 |
| California | $119K | 670 |
| Massachusetts | $117K | 110 |
| New Jersey | $116K | 70 |
| Michigan | $112K | 30 |
| Missouri | $110K | 60 |
| Oklahoma | $104K | 30 |
| Washington | $100K | 270 |
| North Dakota | $98K | 30 |
Frequently asked questions
How much does a hydrologists make?▼
The median hydrologists salary in the United States is $92,060 per year ($44/hour). Entry-level positions start around $60,010, while experienced professionals earn up to $139,420.
What education do you need to become a hydrologists?▼
The BLS lists the typical entry-level education as varies by employer. State licensing or certification requirements vary, so check your state's board for specifics.
What is the job outlook for hydrologists?▼
Check the Bureau of Labor Statistics Occupational Outlook Handbook for the latest employment projections for hydrologists.
What are the highest paying states for hydrologists?▼
The highest paying states for hydrologists are Maryland ($134,410), Virginia ($125,900), California ($118,960), Massachusetts ($116,750), New Jersey ($115,770). Salaries vary significantly by location due to cost of living and local demand.