Registered HVAC technician apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Idaho's licence ladder. Updated nightly.
Idaho has 110 registered HVAC technician apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 15 counties, 0.6 per 10,000 residents. That is 2.3 apprentices for every 100 employed HVAC technicians in the state, the rate at which the trade is training its own replacements.
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Registered HVAC technician apprentices by county of the apprentice, largest first. Each county links to its HVAC technicians market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Kootenai County | 41 | 37% | 2.2 |
| Ada County | 28 | 25% | 0.5 |
| Canyon County | 12 | 11% | 0.5 |
| Caribou County | 6 | 5% | 8.3 |
| Nez Perce County | 6 | 5% | 1.4 |
| Bonneville County | 4 | 4% | 0.3 |
| Benewah County | 2 | 2% | 1.9 |
| Bingham County | 2 | 2% | 0.4 |
| Shoshone County | 2 | 2% | 1.4 |
| Washington County | 2 | 2% | 1.8 |
| Bannock County | 1 | 1% | 0.1 |
| Franklin County | 1 | 1% | 0.6 |
| Oneida County | 1 | 1% | 2.0 |
| Owyhee County | 1 | 1% | 0.8 |
| Valley County | 1 | 1% | 0.8 |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
Idaho records apprentices on its own HVAC technician licence register as HVAC Apprentice Registration: 3,324 active apprentice-tier records against 3,258 journeyman records, a ratio of 1.02 apprentice records per journeyman, register read September 16, 2026. The register's apprentice tier and the federal registered-apprenticeship count in the county table are two different systems: a licence-register apprentice is anyone the state has credentialed to work under supervision, a registered apprentice is enrolled in a DOL-registered program.
Counts are license records, not people: a holder with more than one license appears once per license, and a contractor license is a business, not a worker.
Credential types the Idaho HVAC Board, Division of Occupational and Professional Licenses (DOPL) issues for this trade: HVAC Apprentice, HVAC Journeyman, HVAC Specialty Journeyman, HVAC Contractor, Federal EPA Section 608 technician certification. See how to get a HVAC technician license in Idaho 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: Idaho register read September 16, 2026; population: U.S. Census 2023 estimates.
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