Mechanical Engineers Salary in Illinois

Mechanical engineers in Illinois earn the most in Peoria (average $130,540 a year) and the least in Kankakee ($90,190), across the 7 Illinois metro areas we cover. Statewide, BLS puts the mechanical engineers average at $111,380 and the median at $102,680 for 11,790 workers. The U.S. average for this job is $113,610.

Mechanical Engineers average salary by city in Illinois

Peoria$130,540
Chicago$109,570
Springfield$106,770
Bloomington$103,620
Rockford$102,610
Champaign$102,530
Kankakee$90,190

Pay, take-home pay and cost of living

City	Average	Median	25th pct.	Take-home*	Cost of living
Peoria	$130,540	$128,710	$100,700	$94,169	91
Chicago	$109,570	$102,070	$83,140	$80,630	104
Springfield	$106,770	$92,920	$77,340	$78,799	93
Bloomington	$103,620	$100,500	$81,330	$76,739	94
Rockford	$102,610	$99,150	$82,330	$76,078	92
Champaign	$102,530	$101,090	$81,590	$76,026	93
Kankakee	$90,190	$81,840	$76,200	$67,955	96

*Average salary after federal and state taxes for a single filer. Cost of living: BEA price parity, U.S. = 100.

Mechanical Engineers salary in other states

Mechanical Engineers salary by city and state

More about pay in Illinois

Sources and how to read this page

Wages: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025 estimates for metropolitan areas. SOC code 17-2141.
U.S. and statewide figures: BLS OEWS national and state estimates, May 2025, every employer including rural areas.
Cost of living: Bureau of Economic Analysis regional price parities (RPP), 2024; 100 = U.S. average.

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