Registered plumber apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Montana's licence ladder. Updated nightly.
Montana has 753 registered plumber apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 40 counties, 6.6 per 10,000 residents. That is 42.7 apprentices for every 100 employed plumbers in the state, the rate at which the trade is training its own replacements.
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Registered plumber apprentices by county of the apprentice, largest first. Each county links to its plumbers market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Gallatin County | 161 | 21% | 12.7 |
| Yellowstone County | 112 | 15% | 6.6 |
| Flathead County | 94 | 12% | 8.3 |
| Missoula County | 77 | 10% | 6.3 |
| Cascade County | 69 | 9% | 8.1 |
| Lewis and Clark County | 39 | 5% | 5.2 |
| Silver Bow County | 31 | 4% | 8.5 |
| Ravalli County | 27 | 4% | 5.7 |
| Hill County | 13 | 2% | 8.0 |
| Lake County | 11 | 1% | 3.3 |
| Park County | 11 | 1% | 6.1 |
| Jefferson County | 9 | 1% | 6.9 |
| Lincoln County | 9 | 1% | 4.1 |
| Beaverhead County | 8 | 1% | 8.1 |
| Deer Lodge County | 8 | 1% | 8.3 |
| 25 other counties | 74 | 10% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Montana register ATI reads carries no separate apprentice-tier credential for plumbers; its ladder for this trade starts at Journeyman (990 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 Montana Department of Labor and Industry, Business Standards Division, Montana Board of Plumbers issues for this trade: Plumber Journeyman, Plumber Master, Medical Gas Endorsement. See how to get a plumber license in Montana 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: Montana register read September 16, 2026; population: U.S. Census 2023 estimates.
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