Money · 1 of 5
What hydrologists make
Typical
$96,600
New graduate
$64,020
Senior or principal
$153,130
The national median is $96,600 a year and the bottom tenth start near $64,020. That is high for a science job you can enter with a bachelor's degree, and it is because most of the work is paid for by governments and engineering firms that need the answers for legal and safety reasons.