How much does a Geotechnical Engineer IV make in Washington?
As of July 01, 2026, the average salary for a Geotechnical Engineer IV in Washington is $138,600 per year, which breaks down to an hourly rate of $67.
However, a Geotechnical Engineer IV's salary can vary significantly. Here’s a look at the typical salary range:
- Top Earners (90th percentile): $147,830
- Majority Range (25th-75th percentile): $133,013 to $143,431
- Entry-Level (10th percentile): $127,927