Registered plumber apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Kentucky's licence ladder. Updated nightly.
Kentucky has 442 registered plumber apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 64 counties, 1.0 per 10,000 residents. That is 6.8 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 |
|---|---|---|---|
| Jefferson County | 99 | 22% | 1.3 |
| Fayette County | 43 | 10% | 1.3 |
| Bullitt County | 24 | 5% | 2.8 |
| Boone County | 16 | 4% | 1.1 |
| Kenton County | 16 | 4% | 0.9 |
| Marshall County | 14 | 3% | 4.4 |
| Campbell County | 13 | 3% | 1.4 |
| Carter County | 12 | 3% | 4.6 |
| Boyd County | 11 | 2% | 2.3 |
| Shelby County | 11 | 2% | 2.2 |
| Hardin County | 10 | 2% | 0.9 |
| McCracken County | 10 | 2% | 1.5 |
| Madison County | 9 | 2% | 0.9 |
| Meade County | 9 | 2% | 3.0 |
| Spencer County | 8 | 2% | 3.9 |
| 49 other counties | 137 | 31% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Kentucky register ATI reads carries no separate apprentice-tier credential for plumbers; its ladder for this trade starts at Journeyman (4,630 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 Kentucky Department of Housing, Buildings and Construction (DHBC), Division of Plumbing (Public Protection Cabinet) issues for this trade: Apprentice Plumber (registration), Journeyman Plumber, Master Plumber. See how to get a plumber license in Kentucky 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: Kentucky register read September 16, 2026; population: U.S. Census 2023 estimates.
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