Registered HVAC technician apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Minnesota's licence ladder. Updated nightly.
Minnesota has 247 registered HVAC technician apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 29 counties, 0.4 per 10,000 residents. That is 7.8 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 |
|---|---|---|---|
| Hennepin County | 70 | 28% | 0.6 |
| Anoka County | 35 | 14% | 0.9 |
| Ramsey County | 19 | 8% | 0.4 |
| Dakota County | 17 | 7% | 0.4 |
| Sherburne County | 16 | 6% | 1.6 |
| Stearns County | 12 | 5% | 0.7 |
| Wright County | 11 | 4% | 0.7 |
| Scott County | 10 | 4% | 0.6 |
| Washington County | 10 | 4% | 0.4 |
| Benton County | 8 | 3% | 1.9 |
| Olmsted County | 6 | 2% | 0.4 |
| Chisago County | 5 | 2% | 0.9 |
| Morrison County | 4 | 2% | 1.2 |
| Pine County | 3 | 1% | 1.0 |
| Clay County | 2 | 1% | 0.3 |
| 14 other counties | 19 | 8% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
Minnesota records apprentices on its own HVAC technician licence register as High Pressure Piping Registered Unlicensed HPP Pipefitter: 731 active apprentice-tier records against 2,507 journeyman records, a ratio of 0.29 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 Minnesota Department of Labor and Industry (DLI), HVAC work is regulated through electrical and plumbing licensure and through employer requirements rather than a standalone HVAC licence issues for this trade: Certificate of completion from an approved Minnesota HVAC apprenticeship, Any class of personal licence issued by DLI, Federal EPA Section 608 technician certification, No standalone state HVAC licence. See how to get a HVAC technician license in Minnesota 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: Minnesota register read September 16, 2026; population: U.S. Census 2023 estimates.
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