This page is a free snapshot. Track the same market as it changes, every night: new licenses, contractors adding a trade, and companies going dark.Start tracking
How many licensed plumbers are in Washington?
Licensed-supply count from the Washington register, by credential tier and per capita.
As of 2026-08-09, Washington has 2,726 licensed plumbers
on its state register.
2,726
licensed plumbers
34.9
per 100k residents
#33
of 42 states
Washington plumbers by credential tier
Intermediate589
Journeyman1,432
Contractor705
How Washington compares
State
Licensed plumbers
Per 100k
North Dakota
2,811
358.6
Ohio
2,751
23.3
Washington
2,726
34.9
South Dakota
2,677
291.2
Rhode Island
1,901
173.5
Washington is part of 324,175 licensed plumbers nationally, and ranks #36 of 42 published states by per-capita density.
Questions
How many licensed plumbers are there in Washington?
As of 2026-08-09, Washington has 2,726 licensed plumbers on its state register.
How many plumbers per capita does Washington have?
Washington has 34.9 licensed plumbers per 100,000 residents (Census 2023 population).
Is this the same as employment estimates?
No. This is a count of active licenses on the state register, not a BLS survey estimate of employment. Licensed capacity and estimated employment are different numbers.
How often is this updated?
The register is re-pulled and re-judged nightly. Every figure carries its as-of date.
New licenses, ladder upgrades, classification changes and lapses, by market and credential tier. Read the quarterly free, or license the underlying data.