Illinois · Boilermaker

Illinois boilermaker prevailing wage, county by county

A boilermaker's prevailing wage on Illinois public works runs from $84.16 an hour in Woodford County to $103.35 in Boone County, base wage plus fringe benefits. The median county is $84.84.

Main boilermaker classification in each county (Boilermaker), IDOL posting for work on or after October 19, 2026. IDOL prints no total; each figure is base wage plus fringes. Checked October 24, 2026.

$84$84$84$84$84$103Boilermaker, main rate, base + fringes per hour. Each shade holds about a fifth of the counties.

How much does a boilermaker make on prevailing wage in Illinois?

3 groups of counties with identical rates and 1 county with rates of their own, highest main rate first, each split into wage and fringe benefits on one scale. The table below lists which counties are in each group.

Cook County group12 counties · Boilermaker$103.35
Madison County group56 counties · Boilermaker$84.84
Wayne County1 county · Boilermaker$84.84
Champaign County group33 counties · Boilermaker$84.16

Which counties pay which rate

Counties	Main classification	Base + fringes	Base
Cook County group, 12 counties: Boone, Cook, DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall, Lake, McHenry, Will, Winnebago	Boilermaker	$103.35	$62.06
Madison County group, 56 counties: Adams, Alexander, Bond, Brown, Calhoun, Cass, Christian, Clark, Clay, Clinton, Coles, Crawford, Cumberland, Douglas, Edgar, Edwards, Effingham, Fayette, Franklin, Gallatin, Greene, Hamilton, Hardin, Jackson, Jasper, Jefferson, Jersey, Johnson, Lawrence, Macon, Macoupin, Madison, Marion, Massac, Menard, Monroe, Montgomery, Morgan, Moultrie, Perry, Piatt, Pike, Pope, Pulaski, Randolph, Richland, Saline, Sangamon, Scott, Shelby, St. Clair, Union, Wabash, Washington, White, Williamson	Boilermaker	$84.84	$48.00
Wayne County	Boilermaker	$84.84	$48.00
Champaign County group, 33 counties: Bureau, Carroll, Champaign, De Witt, Ford, Fulton, Hancock, Henderson, Henry, Iroquois, Jo Daviess, Knox, LaSalle, Lee, Livingston, Logan, Marshall, Mason, McDonough, McLean, Mercer, Ogle, Peoria, Putnam, Rock Island, Schuyler, Stark, Stephenson, Tazewell, Vermilion, Warren, Whiteside, Woodford	Boilermaker	$84.16	$50.46

3 groups of counties with identical IDOL rates, and 1 county with rates of its own.

These are journeyworker rates. IDOL's county schedules list journeyworker and foreman rates only; apprentice pay follows the registered apprenticeship program's standards.

Questions about Illinois boilermaker pay

What is the boilermaker prevailing wage in Cook County?

$103.35 an hour: a $62.06 base wage plus $41.29 in fringe benefits, under IDOL's county schedule. Overtime and every boilermaker classification in Cook County.

Does boilermaker prevailing wage include fringe benefits?

Yes. In Cook County the $103.35 total is a $62.06 base wage plus $41.29 in fringe benefits, about 40% of the total. The employer owes the full amount for every hour worked.

Do apprentice boilermakers get this rate?

IDOL's county schedules list journeyworker and foreman rates only. Apprentice pay follows the registered apprenticeship program's standards.

Why do some counties have the same boilermaker rate?

IDOL often publishes the same boilermaker rates for several counties. Across Illinois, the 102 counties with a boilermaker rate fall into 4 distinct sets of rates, and 3 of those sets are shared by more than one county; the largest covers 56 counties (the Madison County group).

Which county pays boilermakers the most in Illinois?

Boone County, at $103.35 an hour for the main classification. The lowest is Woodford County at $84.16, and the median county is $84.84.