Registered sheet metal worker apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Maryland's licence ladder. Updated nightly.
Maryland has 381 registered sheet metal worker apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 13 counties, 0.6 per 10,000 residents. That is 19.1 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 |
|---|---|---|---|
| Prince George's County | 319 | 84% | 3.4 |
| Allegany County | 16 | 4% | 2.4 |
| Baltimore city | 11 | 3% | 0.2 |
| Anne Arundel County | 6 | 2% | 0.1 |
| Baltimore County | 6 | 2% | 0.1 |
| Cecil County | 5 | 1% | 0.5 |
| Charles County | 5 | 1% | 0.3 |
| Harford County | 4 | 1% | 0.2 |
| St. Mary's County | 3 | 1% | 0.3 |
| Calvert County | 2 | 1% | 0.2 |
| Montgomery County | 2 | 1% | 0.0 |
| Dorchester County | 1 | 0% | 0.3 |
| Washington County | 1 | 0% | 0.1 |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
Credential types the No dedicated Maryland sheet metal worker licence. Sheet metal work is regulated through the state's mechanical/HVAC licensing where it applies: Maryland Board of Heating, Ventilation, Air Conditioning and Refrigeration Contractors, within the Division of Occupational and Professional Licensing (Maryland Dept. of Labor).. issues for this trade: Maryland mechanical/HVAC credential covering ductwork and sheet metal, Registered apprenticeship (USDOL or joint apprenticeship committee). See how to get a sheet metal worker license in Maryland 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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