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Knox County · Plumber / Pipefitter
Plumber / Pipefitter prevailing wage in Knox County, Illinois
$75.30an hour, base wage + fringe benefits (our sum) · Plumber
$47.15 base wage + $28.15 fringe benefits · All work
Knox County uses the same plumber or pipefitter rates as 9 other counties. See all of them on one page.
On Illinois public works in Knox County, a plumber or pipefitter working as Plumber must be paid at least $75.30 an hour: a $47.15 base wage plus $28.15 in fringe benefits for health and welfare, pension, vacation, training and other insurance. IDOL lists each part but prints no total, so $75.30 is our sum of its columns. Overtime after 8 hours a day, Monday to Friday, is 1.5 times the base wage. This is IDOL's all work rate; it lists separate building rates for this trade in Knox County.
IDOL's Knox County schedule, posted October 19, 2026, for work performed on or after October 19, 2026. Checked against labor.illinois.gov on October 24, 2026.
IDOL lists 3 plumber or pipefitter rates for Knox County, from $75.30 to $85.23 an hour. See all of them.
Base wage and fringe benefits: $47.15 + $28.15
The base wage is the taxable hourly wage. The other lines are the fringe benefits IDOL lists for each hour: health and welfare, pension, vacation, training, and "other insurance", which IDOL's legend defines as the "employer hourly cost for any other type(s) of insurance".
| Base wage (taxable) | $47.15 |
| Health and welfare | $10.15 |
| Pension | $16.30 |
| Training | $1.70 |
| Base + fringes (our sum; IDOL prints no total) | $75.30 |
IDOL leaves the other insurance column blank for this row, not $0.00. Our sum counts blank as zero.
Foreman base wage: $51.87 an hour, with the same fringe benefits.
When does this rate change?
- Illinois rates don't lock at bid. When IDOL revises a rate, “the revised rate shall apply to such contract” from its effective date, including jobs already under way (820 ILCS 130/4(l)).
- A missing notice is no excuse. A public body's failure to send the new rates “does not relieve the contractor of the duty to comply”, or of paying back wages (820 ILCS 130/4(g), (j)).
- IDOL surveys in June and must publish the year's schedule by July 15 (820 ILCS 130/9), then posts revisions through the year. In 2026 its postings took effect on Jan 15, Mar 2, Apr 15, May 21, Jul 15, Aug 15, Sep 21 and Oct 19, 2026. Each posting replaces all 102 county schedules.
- This page uses the posting for work performed on or after October 19, 2026 (IDOL current rates; older postings are on IDOL's historical rates page).
Every plumber or pipefitter rate in Knox County
As IDOL lists them. The highlighted row is the one this page leads with.
- Sprinkler FitterBuilding$85.23
- PipefitterAll work$75.30
- PlumberAll work$75.30
| Trade and class | Base wage | Fringe benefits | Total rate | OT Mon–Fri |
|---|---|---|---|---|
| PipefitterAll work | $47.15 | $28.15 | $75.30 | 1.5× |
| PlumberAll work | $47.15 | $28.15 | $75.30 | 1.5× |
| Sprinkler FitterBuilding | $53.68 | $31.55 | $85.23 | 1.5× |
Davis-Bacon plumber or pipefitter rate in Knox County
Federally funded or assisted construction here uses the U.S. Department of Labor's wage determinations. When a contract requires both the state rate and the Davis-Bacon rate, paying the higher of the two meets both. The contract documents say which apply.
For building work, the matching Davis-Bacon classification is PLUMBER/PIPEFITTER (ADAMS, BROWN, HANCOCK (WESTERN HALF), CARROLL (WEST OF RT 78 EXCLUDING MT CARROLL), HENDERSON, HENRY, KNOX, LEE, MERCER, ROCK ISLAND, SCHUYLER (EXCEPT BROWNING, FREDERICK, AND HICKORY TWPS), WARREN, AND WHITESIDE COUNTIES) at $74.30 ($46.50 base + $27.80 fringe), from IL20260001 modification 6, published October 22, 2026, rate PLUM0025-001. Against IDOL's $75.30: IDOL's rate is $1.00 an hour higher. Note: federal rate covers only part of the county (see federal classification text).
| Construction | Federal classification | Base wage | Total rate | WD |
|---|---|---|---|---|
| Building | PLUMBER (FULTON, HANCOCK (EASTERN HALF), MCDONOUGH (EXCEPT PRAIRIE), MARSHALL (SOUTH OF RT 17), MASON (NORTH OF RT 136), SCHUYLER (BROWNING, FREDERICK & …PLUM0063-002 | $42.70 | $73.68 | IL20260001 Mod 6 |
| Building | PLUMBER (BUREAU, LA SALLE, LIVINGSTON (NORTH OF RT. 116 EXCLUDING THE CITY OF PONTIAC), MARSHALL (NORTH OF RT 17 AND EAST OF RT. 116A), AND PUTNAM COUNTIES)PLUM0130-005 | $60.50 | $99.52 | IL20260001 Mod 6 |
| Building | PIPEFITTER (FULTON, HANCOCK (EASTERN HALF), MCDONOUGH (EXCEPT PRAIRIE), MARSHALL (SOUTH OF RT 17), MASON (NORTH OF RT 136), SCHUYLER (BROWNING, FREDERICK & …PLUM0353-002 | $41.10 | $68.69 | IL20260001 Mod 6 |
| Building | PLUMBER (CLINTON (NORTHWESTERN PART INCLUDING ST ROSE, FROGTOWN, JAMESTOWN & KEYPORT), RANDOLPH (WESTERN 1/4 INCLUDING KELLOG, MODOC, PRAIRIE, DUROCKER, AND …PLUM0360-001 | $43.75 | $65.00 | IL20260001 Mod 6 |
| Building | STEAMFITTER (CLINTON (NORTHWESTERN PART INCLUDING ST. ROSE, FROGTOWN, JAMESTOWN AND KEY PORT), RANDOLPH (WESTERN 1/4 INCLUDING KELLOG, MODOC, PRAIRIE, …PLUM0439-002 | $49.00 | $73.42 | IL20260001 Mod 6 |
| Building | PIPEFITTER (BUREAU, LA SALLE, LIVINGSTON (NORTH OF RT. 116 EXCLUDING THE CITY OF PONTIAC), MARSHALL (NORTH OF RT 17 AND EAST OF RT. 116A), AND PUTNAM COUNTIES)PLUM0597-007 | $55.00 | $93.62 | IL20260001 Mod 6 |
| Residential | PLUMBER (EXCLUDING HVAC WORK)SUIL1995-001 | $17.42 | $24.02 | IL20260023 Mod 2 |
Davis-Bacon rates from SAM.gov, read October 25, 2026. Our federal totals are base plus fringe; DOL prints no total. Illinois Davis-Bacon changes
Holidays
IDOL's Knox County schedule: “The following list is considered as those days for which holiday rates of wages for work performed apply: New Years Day, Memorial Day, Fourth of July, Labor Day, Thanksgiving Day, Christmas Day and Veterans Day in some classifications/counties. Generally, any of these holidays which fall on a Sunday is celebrated on the following Monday. This then makes work performed on that Monday payable at the appropriate overtime rate for holiday pay. Common practice in a given local may alter certain days of celebration. If in doubt, please check with IDOL.”
Holiday work is paid at the holiday multiple in the overtime table (2.0× the base wage for this row).
How Knox County compares
The main plumber or pipefitter rate in every county that has one, and how the pay splits here and in the nearest counties. All bars use the same scale.
Every county in Illinois
Base wage and fringe benefits, nearby
- Knox Countybase $47.15$75.30
- Warren Countybase $47.15$75.30
- Stark Countybase $45.85$78.68
- Peoria Countybase $45.85$78.68
Plumber / Pipefitter rates in nearby counties
Current IDOL rates. You pay the rate for the county where the work is done. The Act defines “locality” as the county of the physical work, with narrow exceptions (820 ILCS 130/2).
IDOL's plumber or pipefitter rates for Knox County are the same as in 9 other counties: Adams, Brown, Henderson, Henry, Lee, Mercer, Rock Island, Warren and 1 more.
| County | Classification | Base wage | Total rate | vs Knox County |
|---|---|---|---|---|
| Stark County | Plumber (building) | $45.85 | $78.68 | +$3.38 |
| Peoria County | Plumber (building) | $45.85 | $78.68 | +$3.38 |
| Fulton County | Plumber (building) | $45.85 | $78.68 | +$3.38 |
| Knox County | Plumber | $47.15 | $75.30 | |
| Warren County | Plumber | $47.15 | $75.30 | same |
| Henry County | Plumber | $47.15 | $75.30 | same |
| Mercer County | Plumber | $47.15 | $75.30 | same |
Illinois plumber or pipefitter prevailing wage by county, with a map
More from IDOL on this rate
- Knox County schedule (IDOL PDF, page 2)
- Work that no listed trade covers: IDOL names a neighboring county's classification to use. Call 217-782-1710.
- Apprentices: IDOL's county schedules list journeyworker and foreman rates only.
Are you being paid this rate?
Add your base wage to what your employer pays into health, pension and other plans for you, and compare it with $75.30. Your contractor has to post the rates on the job site or give you written notice of them (820 ILCS 130/4(n)), and file a certified payroll with IDOL by the 15th of each month for the month before (820 ILCS 130/5).
A worker paid less than the prevailing rate can sue for the difference (820 ILCS 130/4(g)).
Source
Illinois Department of Labor, prevailing wage rates for Knox County, posted October 19, 2026, page 2: labor.illinois.gov/content/dam/soi/en/web/idol/laws-rules/conmed/documents/fy27/20261019/Knox.pdf
Each figure is read from IDOL's PDF and checked by a second, separate reader. IDOL prints no total; ours is re-added independently. How we check · Download Knox County as CSV · Report an error