What is the Davis-Bacon prevailing wage for a boilermaker in Illinois?

There is no single figure. Active federal determinations for Illinois publish 12 boilermaker classification rates ranging from $45.23 to $53.10 per hour before fringe benefits. The rate that applies depends on the county, the type of construction and the wage determination incorporated into the contract.

How many counties in Illinois have a published boilermaker rate?

102 of the counties covered by active federal determinations list at least one boilermaker classification.

Do these rates apply to state-funded projects?

No. These are federal Davis-Bacon rates, which apply to federally funded or assisted construction. Illinois may set its own prevailing wage rates for state and locally funded work; the state law summary is on the Illinois prevailing wage page.

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Boilermaker prevailing wage rates in Illinois

Federal Davis-Bacon rates published in 9 active determinations, 2026

Active federal Davis-Bacon determinations for Illinois publish 12 boilermaker classification rates, across 9 determinations covering 102 counties.
Those published base rates run from $45.23 to $53.10 an hour before fringe benefits. Which one applies to a job depends on its county, its construction type and the determination written into the contract.
Construction types covered: Building, Heavy, Highway, Residential.
Last determination revision affecting boilermaker rates in Illinois: 2026-05-21.

The official source: binding Davis-Bacon and Service Contract Act wage determinations are published by the U.S. Department of Labor at SAM.gov Wage Determinations. This site indexes them and links every determination to its official document - the determination incorporated into a contract governs.

This page collects every classification in Illinois's active federal determinations that is a form of boilermaker work (boilers, pressure vessels and tank fabrication) and shows the rate published for it. Determinations name a classification the way the underlying union agreement or wage survey named it, so the wording varies between them; the rate and the fringe are reproduced exactly as published.

Published rates by determination

IL20260001 rev 5 · Building · Adams, Bond, Boone, Brown, Bureau, Calhoun and 40 more

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER (BOONE, DE KALB, & WINNEBAGO COUNTIES)	$53.10	38.54	BOIL0001-004 collectively bargained (union) rate
BOILERMAKER (BUREAU, CARROLL, FULTON, HANCOCK, HENDERSON, HENRY, JO DAVIESS, KNOX, LA SALLE, LEE, LIVINGSTON, LOGAN, MCDONOUGH, MCLEAN, MARSHALL, MASON, MERCER, OGLE, PUTNAM, ROCK	$45.23	32.76	BOIL0060-001 collectively bargained (union) rate
BOILERMAKER (ADAMS, BOND, BROWN, CALHOUN, CASS, CLINTON, GREENE, JERSEY, MACOUPIN, MENARD, MONROE, MONTGOMERY, MORGAN, PIKE, RANDOLPH, AND WASHINGTON COUNTIES)	$45.50	35.30	BOIL0363-003 collectively bargained (union) rate

Official document: IL20260001 on SAM.gov.

IL20260002 rev 4 · Building · Alexander, Champaign, Christian, Clark, Clay, Coles and 35 more

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER (CHAMPAIGN, DE WITT, FORD, IROQUOIS, AND VERMILION COUNTIES)	$45.23	32.76	BOIL0060-003 collectively bargained (union) rate
BOILERMAKER (ALEXANDER, CHRISTIAN, CLARK, CLAY, COLES, CRAWFORD, CUMBERLAND, DOUGLAS, EDGAR, EDWARDS, EFFINGHAM, FAYETTE, FRANKLIN, GALLATIN, HAMILTON, HARDIN, JACKSON, JASPER, JEF	$45.50	35.30	BOIL0363-002 collectively bargained (union) rate

Official document: IL20260002 on SAM.gov.

IL20260003 rev 1 · Building, Residential · Peoria, Tazewell

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER	$45.23	32.76	BOIL0060-002 collectively bargained (union) rate

Official document: IL20260003 on SAM.gov.

IL20260004 rev 2 · Building, Residential · Sangamon

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER	$45.50	35.30	BOIL0363-001 collectively bargained (union) rate

Official document: IL20260004 on SAM.gov.

IL20260005 rev 1 · Building, Residential · Macon

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER	$45.50	35.30	BOIL0363-001 collectively bargained (union) rate

Official document: IL20260005 on SAM.gov.

IL20260006 rev 1 · Building, Residential · Kankakee

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER	$53.10	38.54	BOIL0001-001 collectively bargained (union) rate

Official document: IL20260006 on SAM.gov.

IL20260007 rev 2 · Building, Residential · Madison, St Clair

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER	$45.50	35.30	BOIL0363-001 collectively bargained (union) rate

Official document: IL20260007 on SAM.gov.

IL20260008 rev 2 · Building, Residential · Du Page, Grundy, Kane, Kendall, Lake, McHenry and 1 more

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER (DU PAGE, GRUNDY, KANE, KENDALL, LAKE, MCHENRY, AND WILL COUNTIES)	$53.10	38.54	BOIL0001-003 collectively bargained (union) rate

Official document: IL20260008 on SAM.gov.

IL20260009 rev 2 · Building, Heavy, Highway, Residential · Cook

Classification as published	Base rate	Fringes	Rate schedule
BOILERMAKER	$53.10	38.54	BOIL0001-001 collectively bargained (union) rate

Official document: IL20260009 on SAM.gov.

Where to go next

Boilermaker rates in every state · Illinois prevailing wage and state law · Illinois determinations by county · pay calculator

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