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Washington · Plumber / Pipefitter

Washington plumber or pipefitter prevailing wage, county by county

A plumber or pipefitter's prevailing wage on Washington public works runs from $76.77 an hour in Stevens County to $113.59 in Clallam County, wages and fringe benefits together. The median county is $103.31.

Plumber / Pipefitter rate in each Washington county, A to Z

39 counties
CountyBase wageFringe benefitsTotal rateEffectiveSource
Adams CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Asotin CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Benton CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Chelan CountyJourney Level
$66.93 $36.38 $103.31 Sep 2, 2026LNI-149768
Clallam CountyJourney Level
$77.21 $36.38 $113.59 Sep 2, 2026LNI-149767
Clark CountyJourney Level
$60.65 $38.87 $99.52 Mar 5, 2025LNI-148487
Columbia CountyJourney Level · Yakima County group
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Cowlitz CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Douglas CountyJourney Level · Yakima County group
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Ferry CountyJourney Level · Lincoln County group
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Franklin CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Garfield CountyJourney Level · Lincoln County group
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Grant CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Grays Harbor CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Island CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Jefferson CountyJourney Level
$77.21 $36.38 $113.59 Sep 2, 2026LNI-149767
King CountyJourney Level
$77.21 $36.38 $113.59 Sep 2, 2026LNI-149767
Kitsap CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Kittitas CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Klickitat CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Lewis CountyJourney Level · Lewis County group
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Lincoln CountyJourney Level · Lincoln County group
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Mason CountyJourney Level · Lewis County group
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Okanogan CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Pacific CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Pend Oreille CountyJourney Level
$53.39 $23.38 $76.77 Sep 2, 2026LNI-149942
Pierce CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
San Juan CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Skagit CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Skamania CountyJourney Level
$60.65 $38.87 $99.52 Mar 5, 2025LNI-148487
Snohomish CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Spokane CountyJourney Level
$53.39 $23.38 $76.77 Sep 2, 2026LNI-149942
Stevens CountyJourney Level
$53.39 $23.38 $76.77 Sep 2, 2026LNI-149942
Thurston CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Wahkiakum CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Walla Walla CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Whatcom CountyJourney Level
$70.22 $29.65 $99.87 Sep 2, 2026LNI-149930
Whitman CountyJourney Level
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831
Yakima CountyJourney Level · Yakima County group
$65.20 $38.21 $103.41 Sep 2, 2026LNI-149831

Main plumber or pipefitter classification in each county (Journey level), L&I period 2026-2, commercial rates. You pay the rate for the county where the work is done. Checked October 24, 2026.

Pierce County plumber or pipefitter: $99.87 per hourAdams County plumber or pipefitter: $103.41 per hourPend Oreille County plumber or pipefitter: $76.77 per hourKing County plumber or pipefitter: $113.59 per hourChelan County plumber or pipefitter: $103.31 per hourKittitas County plumber or pipefitter: $103.41 per hourGarfield County plumber or pipefitter: $103.41 per hourGrant County plumber or pipefitter: $103.41 per hourOkanogan County plumber or pipefitter: $103.41 per hourFranklin County plumber or pipefitter: $103.41 per hourKlickitat County plumber or pipefitter: $103.41 per hourClark County plumber or pipefitter: $99.52 per hourSkagit County plumber or pipefitter: $99.87 per hourWalla Walla County plumber or pipefitter: $103.41 per hourPacific County plumber or pipefitter: $99.87 per hourCowlitz County plumber or pipefitter: $99.87 per hourWahkiakum County plumber or pipefitter: $99.87 per hourLewis County plumber or pipefitter: $99.87 per hourClallam County plumber or pipefitter: $113.59 per hourGrays Harbor County plumber or pipefitter: $99.87 per hourJefferson County plumber or pipefitter: $113.59 per hourLincoln County plumber or pipefitter: $103.41 per hourMason County plumber or pipefitter: $99.87 per hourSan Juan County plumber or pipefitter: $99.87 per hourStevens County plumber or pipefitter: $76.77 per hourWhatcom County plumber or pipefitter: $99.87 per hourDouglas County plumber or pipefitter: $103.41 per hourSnohomish County plumber or pipefitter: $99.87 per hourThurston County plumber or pipefitter: $99.87 per hourColumbia County plumber or pipefitter: $103.41 per hourYakima County plumber or pipefitter: $103.41 per hourBenton County plumber or pipefitter: $103.41 per hourIsland County plumber or pipefitter: $99.87 per hourSpokane County plumber or pipefitter: $76.77 per hourWhitman County plumber or pipefitter: $103.41 per hourFerry County plumber or pipefitter: $103.41 per hourSkamania County plumber or pipefitter: $99.52 per hourAsotin County plumber or pipefitter: $103.41 per hourKitsap County plumber or pipefitter: $99.87 per hour
$76$99$99$103$103$113Plumber / Pipefitter, main rate, total per hour. Each shade holds about a fifth of the counties.

How much does a plumber or pipefitter make on prevailing wage in Washington?

$76.77 to $113.59 an hour, base wage plus fringe benefits, depending on the county; the median county pays $103.31. 3 groups of counties with identical rates and 31 counties with rates of their own, highest main rate first, each split into base wage and fringe benefits on one scale.

  1. Clallam County1 county$113.59
  2. Jefferson County1 county$113.59
  3. King County1 county$113.59
  4. Lincoln County group3 counties$103.41
  5. Yakima County group3 counties$103.41
  6. Adams County1 county$103.41
  7. Asotin County1 county$103.41
  8. Benton County1 county$103.41
  9. Franklin County1 county$103.41
  10. Grant County1 county$103.41
  11. Kittitas County1 county$103.41
  12. Klickitat County1 county$103.41
  13. Okanogan County1 county$103.41
  14. Walla Walla County1 county$103.41
  15. Whitman County1 county$103.41
  16. Chelan County1 county$103.31
  17. Lewis County group2 counties$99.87
  18. Cowlitz County1 county$99.87
  19. Grays Harbor County1 county$99.87
  20. Island County1 county$99.87
  21. Kitsap County1 county$99.87
  22. Pacific County1 county$99.87
  23. Pierce County1 county$99.87
  24. San Juan County1 county$99.87
  25. Skagit County1 county$99.87
  26. Snohomish County1 county$99.87
  27. Thurston County1 county$99.87
  28. Wahkiakum County1 county$99.87
  29. Whatcom County1 county$99.87
  30. Clark County1 county$99.52
  31. Skamania County1 county$99.52
  32. Pend Oreille County1 county$76.77
  33. Spokane County1 county$76.77
  34. Stevens County1 county$76.77
Which counties share a rate
CountiesMain classificationBase wageTotal rate
Clallam CountyJourney Level$77.21 $113.59 
Jefferson CountyJourney Level$77.21 $113.59 
King CountyJourney Level$77.21 $113.59 
Lincoln County group, 3 counties: Ferry, Garfield, LincolnJourney Level$65.20 $103.41 
Yakima County group, 3 counties: Columbia, Douglas, YakimaJourney Level$65.20 $103.41 
Adams CountyJourney Level$65.20 $103.41 
Asotin CountyJourney Level$65.20 $103.41 
Benton CountyJourney Level$65.20 $103.41 
Franklin CountyJourney Level$65.20 $103.41 
Grant CountyJourney Level$65.20 $103.41 
Kittitas CountyJourney Level$65.20 $103.41 
Klickitat CountyJourney Level$65.20 $103.41 
Okanogan CountyJourney Level$65.20 $103.41 
Walla Walla CountyJourney Level$65.20 $103.41 
Whitman CountyJourney Level$65.20 $103.41 
Chelan CountyJourney Level$66.93 $103.31 
Lewis County group, 2 counties: Lewis, MasonJourney Level$70.22 $99.87 
Cowlitz CountyJourney Level$70.22 $99.87 
Grays Harbor CountyJourney Level$70.22 $99.87 
Island CountyJourney Level$70.22 $99.87 
Kitsap CountyJourney Level$70.22 $99.87 
Pacific CountyJourney Level$70.22 $99.87 
Pierce CountyJourney Level$70.22 $99.87 
San Juan CountyJourney Level$70.22 $99.87 
Skagit CountyJourney Level$70.22 $99.87 
Snohomish CountyJourney Level$70.22 $99.87 
Thurston CountyJourney Level$70.22 $99.87 
Wahkiakum CountyJourney Level$70.22 $99.87 
Whatcom CountyJourney Level$70.22 $99.87 
Clark CountyJourney Level$60.65 $99.52 
Skamania CountyJourney Level$60.65 $99.52 
Pend Oreille CountyJourney Level$53.39 $76.77 
Spokane CountyJourney Level$53.39 $76.77 
Stevens CountyJourney Level$53.39 $76.77 

3 groups of counties with identical L&I rates, and 31 counties with rates of their own.

These are journey-level rates. Registered apprentices are paid L&I's apprentice rate for the trade (RCW 39.12.021), which L&I publishes in its wage lookup.

L&I also sets residential plumber or pipefitter rates for 78 county listings. They apply only to the residential projects defined in WAC 296-127-010(9), and each county page shows them separately.

Questions about Washington plumber or pipefitter pay

What is the plumber or pipefitter prevailing wage in King County?

$113.59 an hour: a $77.21 base wage plus $36.38 in fringe benefits, under L&I period 2026-2. Overtime and every plumber or pipefitter classification in King County.

Does plumber or pipefitter prevailing wage include fringe benefits?

Yes. In King County the $113.59 total is a $77.21 base wage plus $36.38 in fringe benefits, about 32% of the total. The employer owes the full amount for every hour worked.

Do apprentice plumber or pipefitters get this rate?

Registered apprentices get L&I's apprentice rate for the trade (RCW 39.12.021), which L&I publishes in its wage lookup. Anyone else on the job is paid as a journey-level worker.

Why do some counties have the same plumber or pipefitter rate?

L&I often publishes the same plumber or pipefitter rates for several counties. Across Washington, the 39 counties with a plumber or pipefitter rate fall into 34 distinct sets of rates, and 3 of those sets are shared by more than one county; the largest covers 3 counties (the Lincoln County group).

Which county pays plumber or pipefitters the most in Washington?

Clallam County, at $113.59 an hour for the main classification. The lowest is Stevens County at $76.77, and the median county is $103.31.