The median annual wage for Hydrologists in Washington is $100,000 (May 2024 BLS OES). The mean (average) is $102,530.
Pay spans roughly $70,790 at the 10th percentile to $149,870 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $48.08 per hour. An estimated 270 people work as hydrologists in Washington.
| Median (annual) | $100,000 |
| Mean (annual) | $102,530 |
| Median (hourly) | $48.08 |
| 10th percentile | $70,790 |
| 90th percentile | $149,870 |
| Employment | 270 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.