SalaryCalculations

Hydrologists Salary in Illinois

State wage data from the BLS OEWS survey, May 2025.

Median annual

$83,720

Median hourly

$40

Average annual

$92,640

Employed in state

100

The median annual salary for Hydrologists in Illinois is $83,720, or about $40 an hour. That is 13% lower than the national median.

Pay in Illinois ranges from $59,070 at the 10th percentile to $133,430 at the 90th percentile. Roughly 100 people work as hydrologists in the state.

Pay distribution in Illinois

10th$59,070
25th$67,590
Median$83,720
75th$110,110
90th$133,430

Salary calculator

Hourly
$40.25
Daily
$322
Weekly
$1,610
Bi-weekly
$3,220
Monthly
$6,977
Annual
$83,720

$83,720 a year is around the 50th percentile for Hydrologistss in Illinois. The median is $83,720.

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