Registered plumber apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Washington's licence ladder. Updated nightly.
Washington has 100 registered plumber apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 7 counties, 0.1 per 10,000 residents. That is 0.9 apprentices for every 100 employed plumbers in the state, the rate at which the trade is training its own replacements.
A free report on your market: what the trade pays, how that compares with nearby counties, and where your credential sits against the local licensed workforce. No account needed.
Registered plumber apprentices by county of the apprentice, largest first. Each county links to its plumbers market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Franklin County | 54 | 54% | 5.5 |
| Spokane County | 38 | 38% | 0.7 |
| Asotin County | 2 | 2% | 0.9 |
| Clark County | 2 | 2% | 0.0 |
| Kittitas County | 2 | 2% | 0.4 |
| Lincoln County | 1 | 1% | 0.9 |
| Stevens County | 1 | 1% | 0.2 |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Washington register ATI reads carries no separate apprentice-tier credential for plumbers; its ladder for this trade starts at Journeyman (1,448 active records, read September 16, 2026). Registered apprentices in the county table above are counted from the federal apprenticeship system, not from the licence register.
Credential types the Washington State Department of Labor & Industries (L&I), Plumber Certification Program issues for this trade: Plumber Trainee, Journey Level Plumber (PL01), Residential Specialty Plumber (PL02), Residential Service Plumber, Medical Gas Piping endorsement. See how to get a plumber license in Washington for hours, exams and renewal.
Sources: registered apprentices: DOL RAPIDS apprenticeship FY2025, active status, as of December 31, 2025; employment: BLS QCEW construction x OEWS occupation share (estimate); licence tiers: Washington register read September 16, 2026; population: U.S. Census 2023 estimates.
This page is a free snapshot of plumbers in Washington. Track the same market every night and see which contractors just got licensed, added a trade, or dropped off, and pull the full record, with contact details, on any of them. Ask it anything, track what matters, and get the weekly intelligence email. Free trial, cancel anytime.