Private Detectives and Investigators in Illinois
Local pay for private detectives and investigators in Illinois, on the same wage scale as the U.S. Growth and openings are national.
SOC 33-9021
$60,210
median pay, Illinois
1,300
employed in Illinois
+17.6%
vs U.S. median
+6.0%
growth, 2024–34 (U.S.)
What private detectives and investigators earn in Illinois
Illinois · annual wage · OEWS May 2025
Half of private detectives and investigators in Illinois earn between $44,380 and $79,140 a year; the U.S. median is $51,220.
$38,920
P10
$44,380
P25
$60,210
MEDIAN
$79,140
P75
$97,780
P90
Pay by metro in Illinois
$68,310
$40k $70k $100k