Registered boiler operator apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Ohio's licence ladder. Updated nightly.
Ohio has 106 registered boiler operator apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 26 counties, 0.1 per 10,000 residents. That is 95.5 apprentices for every 100 employed boiler operators in the state, the rate at which the trade is training its own replacements.
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Registered boiler operator apprentices by county of the apprentice, largest first. Each county links to its boiler operators market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Lucas County | 28 | 26% | 0.7 |
| Cuyahoga County | 12 | 11% | 0.1 |
| Wood County | 12 | 11% | 0.9 |
| Gallia County | 7 | 7% | 2.4 |
| Lorain County | 6 | 6% | 0.2 |
| Meigs County | 5 | 5% | 2.3 |
| Summit County | 4 | 4% | 0.1 |
| Columbiana County | 3 | 3% | 0.3 |
| Lake County | 3 | 3% | 0.1 |
| Lawrence County | 3 | 3% | 0.5 |
| Williams County | 3 | 3% | 0.8 |
| Ashtabula County | 2 | 2% | 0.2 |
| Clermont County | 2 | 2% | 0.1 |
| Franklin County | 2 | 2% | 0.0 |
| Scioto County | 2 | 2% | 0.3 |
| 11 other counties | 12 | 11% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
Credential types the Ohio boiler and pressure vessel safety programme, commonly administered by the state Department of Labor or an equivalent boiler safety division issues for this trade: Stationary Engineer / Boiler Operator licence, graded by plant size, State boiler and pressure vessel certificate of operation (on the equipment). See how to get a boiler operator license in Ohio 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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