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Hydrology

The median salary in the Hydrology series stood at $113,530 across the 1,480 employees whose salary OPM published in August 2026, according to OPM.

1,520 federal civilian employees in August 2026, as the Office of Personnel Management published them. The median is over the 97.4% of them whose salary it publishes.

Hydrology, August 2026

1,520
Employees
1,480
Salary published
97.4% of them. Every pay figure here divides by this.
36
Salary withheld
2.4%, under OPM's own release policy.
4
Neither withheld nor averaged
Paid hourly, per diem or on another basis, or with no pay recorded. Not withheld, and not in the median.
$113,530
Median salary
Annual rate, over those paid per annum. It excludes overtime, awards and bonuses.

A tenth of published salaries are under $77,211 and a tenth over $163,615.

Hydrology, from September 2015 to August 2026

A point a year and the most recent months, which is what the file this page reads keeps. The share with a published salary is beside each, because a change in the median can be a change in whose pay is withheld. A month OPM flags as incomplete is marked provisional.

1 more column on a wider screen

Hydrology: employees and published pay by month.
MonthEmployeesSalary published
September 20152,16697.5%
September 20162,19197.3%
September 20172,16397.5%
September 20182,05097.1%
September 20192,00797.4%
September 20201,98197.3%
September 20211,94797.3%
September 20221,95097.3%
September 20231,94097.6%
September 20241,93397.8%
September 20251,78897.8%
June 2026 (provisional)1,52497.4%
July 2026 (provisional)1,52797.4%
August 20261,52097.4%

How the federal salary figures are made

Sources

Compiled automatically from OPM Federal Workforce Data — Federal Employment Raw Data (EHRI Status) by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved