Plumber prevailing wage rates in Washington

Federal Davis-Bacon wage determinations publish plumber rates in 39 Washington counties, with top published base pay from $35.00 to $75.21 per hour depending on county and construction type. Every figure below links to its source wage determination on SAM.gov.

County	Top base	Fringe	Type	WD
Adams County	$35.00	$0.00	Building	WA20260021
Asotin County	$47.15	$27.20	Building	WA20260003
Benton County	$62.95	$33.76	Building	WA20260002
Chelan County	$60.72	$34.15	Building	WA20260103
Clallam County	$75.21	$33.88	Building	WA20260022
Clark County	$42.47	$19.17	Building	WA20260120
Columbia County	$47.15	$27.20	Building	WA20260104
Cowlitz County	$47.74	$28.52	Building	WA20260105
Douglas County	$60.72	$34.15	Building	WA20260106
Ferry County	$35.00	$0.00	Building	WA20260024
Franklin County	$62.95	$33.76	Building	WA20260002
Garfield County	$35.00	$0.00	Building	WA20260025
Grant County	$35.00	$0.00	Building	WA20260026
Grays Harbor County	$35.00	$0.00	Building	WA20260027
Island County	$35.00	$0.00	Building	WA20260028
Jefferson County	$35.00	$0.00	Building	WA20260029
King County	$75.21	$33.88	Building	WA20260108
Kitsap County	$60.72	$34.15	Building	WA20260109
Kittitas County	$35.00	$0.00	Building	WA20260030
Klickitat County	$35.00	$0.00	Building	WA20260031
Lewis County	$35.00	$0.00	Building	WA20260032
Lincoln County	$35.00	$0.00	Building	WA20260033
Mason County	$35.00	$0.00	Building	WA20260034
Okanogan County	$35.00	$0.00	Building	WA20260035
Pacific County	$35.00	$0.00	Building	WA20260036
Pend Oreille County	$47.15	$27.20	Building	WA20260110
Pierce County	$60.72	$34.15	Building	WA20260111
San Juan County	$35.00	$0.00	Building	WA20260038
Skagit County	$60.72	$34.15	Building	WA20260112
Skamania County	$42.47	$19.17	Building	WA20260120
Snohomish County	$75.21	$33.88	Building	WA20260113
Spokane County	$47.15	$27.20	Building	WA20260114
Stevens County	$47.15	$27.20	Building	WA20260115
Thurston County	$60.72	$34.15	Building	WA20260116
Wahkiakum County	$35.00	$0.00	Building	WA20260040
Walla Walla County	$47.15	$27.20	Building	WA20260117
Whatcom County	$60.72	$34.15	Building	WA20260118
Whitman County	$35.00	$0.00	Building	WA20260042
Yakima County	$47.74	$28.52	Building	WA20260119

One representative line per county: the highest published base rate for this trade. Open the county page for every classification.

Sources

WA20260002 rev. 2 · modified May 20, 2026
WA20260100 rev. 1 · modified May 18, 2026
WA20260101 rev. 1 · modified May 18, 2026
WA20260102 rev. 2