Registered plumber apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Tennessee's licence ladder. Updated nightly.
Tennessee has 274 registered plumber apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 46 counties, 0.4 per 10,000 residents. That is 2.8 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 |
|---|---|---|---|
| Knox County | 64 | 23% | 1.3 |
| Shelby County | 34 | 12% | 0.4 |
| Hamilton County | 18 | 7% | 0.5 |
| Davidson County | 17 | 6% | 0.2 |
| Blount County | 13 | 5% | 0.9 |
| Sevier County | 13 | 5% | 1.3 |
| Tipton County | 10 | 4% | 1.6 |
| Jefferson County | 8 | 3% | 1.4 |
| Rutherford County | 8 | 3% | 0.2 |
| Sullivan County | 8 | 3% | 0.5 |
| Bradley County | 7 | 3% | 0.6 |
| Wilson County | 6 | 2% | 0.4 |
| Montgomery County | 5 | 2% | 0.2 |
| Roane County | 5 | 2% | 0.9 |
| Sumner County | 5 | 2% | 0.2 |
| 31 other counties | 53 | 19% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
The Tennessee register ATI reads carries no separate apprentice-tier credential for plumbers; its ladder for this trade starts at Journeyman (971 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 Tennessee Board for Licensing Contractors, Department of Commerce and Insurance issues for this trade: Limited Licensed Plumber (LLP), CMC-A Plumbing contractor, CMC full Mechanical contractor. See how to get a plumber license in Tennessee 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: Tennessee register read September 16, 2026; population: U.S. Census 2023 estimates.
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