What is the Davis-Bacon prevailing wage for a plumber in Maryland?

There is no single figure. Active federal determinations for Maryland publish 50 plumber classification rates ranging from $17.60 to $51.25 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 Maryland have a published plumber rate?

21 of the counties covered by active federal determinations list at least one plumber classification.

Do these rates apply to state-funded projects?

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

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Plumber prevailing wage rates in Maryland

Federal Davis-Bacon rates published in 39 active determinations, 2026

Active federal Davis-Bacon determinations for Maryland publish 50 plumber classification rates, across 39 determinations covering 21 counties.
Those published base rates run from $17.60 to $51.25 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 plumber rates in Maryland: 2026-06-04.

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 Maryland's active federal determinations that is a form of plumber work (potable water, waste and gas piping) 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

MD20260008 rev 2 · Heavy, Highway · Allegany

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$39.78	20.28	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260008 on SAM.gov.

MD20260038 rev 2 · Heavy, Highway · Frederick

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260038 on SAM.gov.

MD20260039 rev 2 · Heavy, Highway · Garrett

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$39.78	20.28	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260039 on SAM.gov.

MD20260043 rev 2 · Heavy, Highway · Montgomery

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260043 on SAM.gov.

MD20260044 rev 2 · Heavy, Highway · Prince George's

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260044 on SAM.gov.

MD20260059 rev 1 · Residential · Allegany

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$20.89	3.22	SUMD2012-019 DOL wage survey rate

Official document: MD20260059 on SAM.gov.

MD20260060 rev 1 · Residential · Anne Arundel

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE INSTALLATION	$22.63	0.60	SUMD2012-020 DOL wage survey rate
PLUMBER (HVAC PIPE INSTALLATION ONLY)	$17.60	0.00	SUMD2012-020 DOL wage survey rate

Official document: MD20260060 on SAM.gov.

MD20260061 rev 1 · Residential · Baltimore City

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE INSTALLATION	$20.48	0.00	SUMD2012-021 DOL wage survey rate
PLUMBER (HVAC PIPE INSTALLATION ONLY)	$17.60	0.00	SUMD2012-021 DOL wage survey rate

Official document: MD20260061 on SAM.gov.

MD20260062 rev 1 · Residential · Frederick

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE AND UNIT INSTALLATION	$26.00	6.67	SUMD2012-022 DOL wage survey rate
PLUMBER (HVAC PIPE AND UNIT INSTALLATION ONLY)	$18.80	6.63	SUMD2012-022 DOL wage survey rate

Official document: MD20260062 on SAM.gov.

MD20260063 rev 1 · Residential · Harford

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE INSTALLATION	$20.48	0.00	SUMD2012-023 DOL wage survey rate
PLUMBER (HVAC PIPE INSTALLATION ONLY)	$17.60	0.00	SUMD2012-023 DOL wage survey rate

Official document: MD20260063 on SAM.gov.

MD20260064 rev 1 · Residential · Howard

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE INSTALLATION	$20.48	0.00	SUMD2012-024 DOL wage survey rate
PLUMBER (HVAC PIPE INSTALLATION ONLY)	$17.60	0.00	SUMD2012-024 DOL wage survey rate

Official document: MD20260064 on SAM.gov.

MD20260065 rev 1 · Residential · Montgomery

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE AND UNIT INSTALLATION	$26.00	6.67	SUMD2012-025 DOL wage survey rate
PLUMBER (HVAC PIPE AND UNIT INSTALLATION ONLY)	$18.80	6.63	SUMD2012-025 DOL wage survey rate

Official document: MD20260065 on SAM.gov.

MD20260066 rev 1 · Residential · Prince George's

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE AND UNIT INSTALLATION	$26.00	6.67	SUMD2012-026 DOL wage survey rate
PLUMBER (HVAC PIPE AND UNIT INSTALLATION ONLY)	$18.80	6.63	SUMD2012-026 DOL wage survey rate

Official document: MD20260066 on SAM.gov.

MD20260067 rev 1 · Residential · Queen Anne's

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE INSTALLATION	$20.48	0.00	SUMD2012-027 DOL wage survey rate
PLUMBER (HVAC PIPE INSTALLATION ONLY)	$17.60	0.00	SUMD2012-027 DOL wage survey rate

Official document: MD20260067 on SAM.gov.

MD20260068 rev 1 · Residential · St Mary's

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE AND UNIT INSTALLATION	$26.00	6.67	SUMD2012-028 DOL wage survey rate
PLUMBER (HVAC PIPE AND UNIT INSTALLATION ONLY)	$18.80	6.63	SUMD2012-028 DOL wage survey rate

Official document: MD20260068 on SAM.gov.

MD20260069 rev 1 · Residential · Washington

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$20.89	3.22	SUMD2012-029 DOL wage survey rate

Official document: MD20260069 on SAM.gov.

MD20260070 rev 1 · Residential · Baltimore, Carroll, Cecil

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE INSTALLATION	$20.48	0.00	SUMD2012-030 DOL wage survey rate
PLUMBER (HVAC PIPE INSTALLATION ONLY)	$17.60	0.00	SUMD2012-030 DOL wage survey rate

Official document: MD20260070 on SAM.gov.

MD20260071 rev 1 · Residential · Calvert, Charles

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER, EXCLUDES HVAC PIPE AND UNIT INSTALLATION	$26.00	6.67	SUMD2012-031 DOL wage survey rate
PLUMBER (HVAC PIPE AND UNIT INSTALLATION ONLY)	$18.80	6.63	SUMD2012-031 DOL wage survey rate

Official document: MD20260071 on SAM.gov.

MD20260072 rev 1 · Residential · Somerset, Wicomico, Worcester

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$20.89	3.22	SUMD2012-032 DOL wage survey rate

Official document: MD20260072 on SAM.gov.

MD20260078 rev 2 · Heavy, Highway · Washington

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$39.78	20.28	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260078 on SAM.gov.

MD20260081 rev 2 · Building · Allegany

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$38.78	20.28	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260081 on SAM.gov.

MD20260082 rev 2 · Building · Anne Arundel

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$47.78	25.93	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260082 on SAM.gov.

MD20260107 rev 2 · Building · Baltimore City

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$47.78	25.93	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260107 on SAM.gov.

MD20260108 rev 2 · Building · Baltimore

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$47.78	25.93	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260108 on SAM.gov.

MD20260109 rev 2 · Building · Calvert

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	24.52	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260109 on SAM.gov.

MD20260111 rev 2 · Building · Carroll

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$45.46	24.12	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260111 on SAM.gov.

MD20260113 rev 2 · Building · Charles

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260113 on SAM.gov.

MD20260114 rev 2 · Building · Dorchester

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$46.22	24.55	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260114 on SAM.gov.

MD20260115 rev 2 · Building · Frederick

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$47.78	25.93	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260115 on SAM.gov.

MD20260116 rev 2 · Building · Garrett

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$39.78	20.28	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260116 on SAM.gov.

MD20260117 rev 2 · Building · Harford

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$47.78	25.93	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260117 on SAM.gov.

MD20260118 rev 2 · Building · Howard

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$45.00	21.24	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260118 on SAM.gov.

MD20260120 rev 2 · Building · Montgomery

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260120 on SAM.gov.

MD20260121 rev 2 · Building · Prince George's

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260121 on SAM.gov.

MD20260123 rev 2 · Building · Somerset

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$46.22	24.55	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260123 on SAM.gov.

MD20260124 rev 2 · Building · St Mary's

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$51.25	23.10	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260124 on SAM.gov.

MD20260126 rev 2 · Building · Washington

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$41.78	20.28	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260126 on SAM.gov.

MD20260127 rev 2 · Building · Wicomico

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$46.22	24.55	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260127 on SAM.gov.

MD20260128 rev 2 · Building · Worcester

Classification as published	Base rate	Fringes	Rate schedule
PLUMBER	$46.22	24.55	SAMD2025-001 collectively bargained (union) rate

Official document: MD20260128 on SAM.gov.

Where to go next

Plumber rates in every state · Maryland prevailing wage and state law · Maryland determinations by county · pay calculator

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