Registered sheet metal worker apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Missouri's licence ladder. Updated nightly.
Missouri has 721 registered sheet metal worker apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 64 counties, 1.2 per 10,000 residents. That is 26.8 apprentices for every 100 employed sheet metal workers in the state, the rate at which the trade is training its own replacements.
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Registered sheet metal worker apprentices by county of the apprentice, largest first. Each county links to its sheet metal workers market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| St. Louis County | 102 | 14% | 1.0 |
| Jackson County | 86 | 12% | 1.2 |
| Jefferson County | 84 | 12% | 3.6 |
| St. Charles County | 48 | 7% | 1.2 |
| Callaway County | 38 | 5% | 8.5 |
| Clay County | 34 | 5% | 1.3 |
| Boone County | 24 | 3% | 1.3 |
| Cole County | 24 | 3% | 3.1 |
| Lincoln County | 22 | 3% | 3.4 |
| St. Louis city | 20 | 3% | 0.7 |
| Cass County | 19 | 3% | 1.7 |
| Osage County | 18 | 2% | 13.4 |
| Buchanan County | 16 | 2% | 1.9 |
| Franklin County | 16 | 2% | 1.5 |
| St. Francois County | 13 | 2% | 1.9 |
| 49 other counties | 157 | 22% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
Credential types the No dedicated Missouri sheet metal worker licence. Missouri does not license the mechanical trades at state level; requirements are local. issues for this trade: Local mechanical registration or permit where required, Registered apprenticeship (USDOL or joint apprenticeship committee). See how to get a sheet metal worker license in Missouri 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); population: U.S. Census 2023 estimates.
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