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Mercer County, NJ · Plumber / Pipefitter
Plumber / Pipefitter prevailing wage in Mercer County, New Jersey
$111.07an hour, base wage + fringe benefits
$62.62 base wage + $48.45 fringe benefits
On New Jersey public works in Mercer County, a plumber or pipefitter must be paid at least $111.07 an hour: a $62.62 base wage plus $48.45 in fringe benefits.
NJDOL county packages of October 19, 2026; this rate, effective July 1, 2026. Rates are those in effect when the contract is awarded, plus every pre-determined increase listed then, from its date (NJDOL FAQ). Checked against nj.gov on October 25, 2026.
NJDOL lists 6 plumber or pipefitter rates for Mercer County, from $109.22 to $119.84 an hour. See all of them.
NJDOL's posted rates are informational. The public body obtains the project's official determination, and it goes in the contract.
Base wage and fringe benefits: $62.62 + $48.45
The base wage is the taxable hourly wage. NJDOL prints the fringe benefits as one hourly figure, not itemized; it can go to health, pension, vacation and training plans, or be paid as cash where the state allows.
| Base wage (taxable) | $62.62 |
| Fringe benefits (one figure, not itemized) | $48.45 |
| Total hourly rate, as printed | $111.07 |
When does this rate change?
- The rates in effect on the date the contract is awarded apply, plus every pre-determined increase listed then, from its date. A later posting doesn't change an awarded job (NJDOL FAQ). Rates marked expired "remain in effect" until new ones are posted.
- NJDOL reissues a county's package whenever a union agreement changes. This page uses the packages of October 19, 2026 (NJDOL current rates).
Every plumber or pipefitter rate in Mercer County
As NJDOL lists them. The highlighted row is the one this page leads with.
- Plumber: General Foreman$119.84
- Plumber: Assistant General Foreman$116.71
- Plumber: Foreman$116.08
- Sprinkler Fitter: Foreman$113.32
- Plumber: Journeyman$111.07
- Sprinkler Fitter: Journeyman$109.22
| Classification | Base wage | Fringe benefits | Total rate | Effective |
|---|---|---|---|---|
| Plumber: Assistant General Foreman | $68.26 | $48.45 | $116.71 | Jul 1, 2026 |
| Plumber: Foreman | $67.63 | $48.45 | $116.08 | Jul 1, 2026 |
| Plumber: General Foreman | $71.39 | $48.45 | $119.84 | Jul 1, 2026 |
| Plumber: Journeyman | $62.62 | $48.45 | $111.07 | Jul 1, 2026 |
| Sprinkler Fitter: Foreman | $76.62 | $36.70 | $113.32 | May 1, 2026 |
| Sprinkler Fitter: Journeyman | $72.52 | $36.70 | $109.22 | May 1, 2026 |
Davis-Bacon plumber or pipefitter rate in Mercer County
Federally funded or assisted construction here uses the U.S. Department of Labor's wage determinations. Where both Davis-Bacon and the New Jersey Act apply, "whichever rate is higher must be paid" (NJDOL FAQ).
We don't put a federal figure next to NJDOL's here, because the federal determination lists more than one rate for this trade here. The federal rows for this trade are below; match the classification to the work.
| Construction | Federal classification | Base wage | Total rate | WD |
|---|---|---|---|---|
| Building | PIPEFITTER, INCLUDES HVAC PIPE INSTALLATION (MERCER COUNTY (south of a line drawn from the point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) …PLUM0009-016 | $59.57 | $106.02 | NJ20260035 Mod 2 |
| Building | PIPEFITTER: SERVICE AND REPAIR (MERCER COUNTY (south of a line drawn from the point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) meets the …PLUM0009-016 | $46.23 | $75.46 | NJ20260035 Mod 2 |
| Building | PLUMBER: SERVICE AND REPAIR (MERCER COUNTY (south of a line drawn from the point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) meets the …PLUM0009-016 | $46.23 | $75.46 | NJ20260035 Mod 2 |
| Building | PIPEFITTER, INCLUDING HVAC PIPE INSTALLATION (MERCER COUNTY (north of a line drawn from point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) meets …PLUM0475-010 | $56.34 | $107.14 | NJ20260035 Mod 2 |
| Building | SPRINKLER FITTER: FIRE SPRINKLERS (MERCER COUNTY (DOES NOT INCLUDE THE TOWN OF TRENTON))SFNJ0669-003 | $59.19 | $95.70 | NJ20260035 Mod 2 |
| Building | SPRINKLER FITTER: FIRE (Within 15 miles beyond the city limits of Philadelphia.)SFNJ0692-002 | $60.83 | $91.17 | NJ20260035 Mod 2 |
| Heavy | PLUMBER (MERCER COUNTY (SOUTH OF A LINE DRAWN FROM THE POINT AT WHICH RT. 602 (ALSO KNOWN AS HOPEWELL - WERTSVILLE RD.) MEETS THE HUNTERDON/MERCER COUNTY LINE; …PLUM0009-023 | $59.57 | $106.02 | NJ20260056 Mod 3 |
| Heavy | PLUMBER: SERVICE AND REPAIR (MERCER COUNTY (SOUTH OF A LINE DRAWN FROM THE POINT AT WHICH RT. 602 (ALSO KNOWN AS HOPEWELL - WERTSVILLE RD.) MEETS THE …PLUM0009-023 | $46.23 | $75.46 | NJ20260056 Mod 3 |
| Heavy | PIPEFITTER (MERCER COUNTY (SOUTH OF A LINE DRAWN FROM THE POINT AT WHICH RT. 602 (ALSO KNOWN AS HOPEWELL - WERTSVILLE RD.) MEETS THE HUNTERDON/MERCER COUNTY …PLUM0009-023 | $59.57 | $106.02 | NJ20260056 Mod 3 |
| Heavy | PIPEFITTER: SERVICE AND REPAIR (MERCER COUNTY (SOUTH OF A LINE DRAWN FROM THE POINT AT WHICH RT. 602 (ALSO KNOWN AS HOPEWELL - WERTSVILLE RD.) MEETS THE …PLUM0009-023 | $46.23 | $75.46 | NJ20260056 Mod 3 |
| Heavy | PLUMBER (MERCER COUNTY (NORTH OF A LINE DRAWN FROM THE POINT AT WHICH RT. 602 (ALSO KNOWN AS HOPEWELL - WERTSVILLE RD.) MEETS THE HUNTERDON/MERCER COUNTY LINE; …PLUM0024-018 | $62.09 | $107.14 | NJ20260056 Mod 3 |
| Heavy | PIPEFITTER (MERCER COUNTY (NORTH OF A LINE DRAWN FROM POINT AT WHICH RT. 602 (ALSO KNOWN AS HOPEWELL - WERTSVILLE RD.) MEETS THE HUNTERDON/MERCER COUNTY LINE; …PLUM0475-017 | $56.34 | $107.14 | NJ20260056 Mod 3 |
| Residential | PLUMBER/PIPEFITTER (MERCER COUNTY (south of a line drawn from the point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) meets the Hunterdon/Mercer …PLUM0009-005 | $34.25 | $55.56 | NJ20260014 Mod 1 |
| Residential | PLUMBER (MERCER COUNTY (north of a line drawn from the point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) meets the Hunterdon/Mercer County line; …PLUM0024-004 | $62.09 | $107.14 | NJ20260014 Mod 1 |
| Residential | PIPEFITTER (MERCER COUNTY (north of a line drawn from the point at which Rt. 602 (also known as Hopewell - Wertsville Rd.) meets the Hunterdon/Mercer County …PLUM0475-004 | $56.37 | $107.17 | NJ20260014 Mod 1 |
Davis-Bacon rates from SAM.gov, read October 25, 2026. Our federal totals are base plus fringe; DOL prints no total. New Jersey Davis-Bacon changes
How Mercer County compares
The main plumber or pipefitter rate in every county that has one, and how the pay splits here and nearby. All bars use the same scale.
Every county in New Jersey
Wage and fringe benefits, nearby
- Mercer Countybase $62.62$111.07
- Middlesex Countybase $62.62$111.07
- Somerset Countybase $64.19$111.59
- Hunterdon Countybase $64.19$111.59
Plumber / Pipefitter rates in nearby counties
Current NJDOL rates. Rates "are generally set for each of the State's twenty-one (21) counties", and some crafts are statewide (NJDOL FAQ).
| County | Classification | Base wage | Total rate | vs Mercer County |
|---|---|---|---|---|
| Somerset County | Plumber: Journeyman | $64.19 | $111.59 | +$0.52 |
| Hunterdon County | Plumber: Journeyman | $64.19 | $111.59 | +$0.52 |
| Union County | Plumber: Journeyman | $64.19 | $111.59 | +$0.52 |
| Mercer County | Plumber: Journeyman | $62.62 | $111.07 | |
| Middlesex County | Plumber: Journeyman | $62.62 | $111.07 | same |
| Monmouth County | Plumber: Journeyman | $62.62 | $111.07 | same |
| Burlington County | Sprinkler Fitter: Journeyman | $63.14 | $100.95 | −$10.12 |
New Jersey plumber or pipefitter prevailing wage by county, with a map
More from NJDOL on this rate
- NJDOL NJDOL county package, page 59
- NJDOL's current prevailing wage rates
- These are journeyman rates. Apprentices registered with the U.S. Office of Apprenticeship get the percentage in the craft's apprentice schedule, with full benefits unless noted.
Are you being paid this rate?
Add your wage to what your employer pays into benefits for you, or pays you in cash each payday, and compare it with the total. Rates for every craft, including future increases, must be posted on site, and certified payroll goes to NJDOL within 10 days of payday (N.J.S.A. 34:11-56.29). NJDOL Public Contracts: (609) 292-2259.
Source
Department of Labor and Workforce Development (NJDOL), NJDOL county package NJDOL-20261019-mercer, issued October 19, 2026, effective July 1, 2026, page 59: lwdwebpt.dol.state.nj.us/archivewages/292125119-mercer-10-19-2026.pdf
We read every county package of October 19, 2026, including its statewide pages, and check every number with a second, separate reader. Wage plus benefit equals NJDOL's printed total on every step that prints both. How we check · Download Mercer County as CSV · Report an error