Registered fire sprinkler fitter apprentices by county, open recruitment windows where the state publishes them, and how the apprentice tier fits Colorado's licence ladder. Updated nightly.
Colorado has 278 registered fire sprinkler fitter apprentices in active status (fiscal year 2025, DOL RAPIDS), placed in 20 counties, 0.5 per 10,000 residents. That is 2.4 apprentices for every 100 employed fire sprinkler fitters in the state, the rate at which the trade is training its own replacements.
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Registered fire sprinkler fitter apprentices by county of the apprentice, largest first. Each county links to its fire sprinkler fitters market page.
| County | Apprentices | Share | Per 10k residents |
|---|---|---|---|
| Adams County | 59 | 21% | 1.1 |
| El Paso County | 42 | 15% | 0.6 |
| Arapahoe County | 32 | 12% | 0.5 |
| Denver County | 30 | 11% | 0.4 |
| Weld County | 27 | 10% | 0.8 |
| Jefferson County | 24 | 9% | 0.4 |
| Larimer County | 22 | 8% | 0.6 |
| Douglas County | 9 | 3% | 0.2 |
| Boulder County | 8 | 3% | 0.2 |
| Mesa County | 6 | 2% | 0.4 |
| Montrose County | 5 | 2% | 1.1 |
| Elbert County | 3 | 1% | 1.0 |
| Pueblo County | 3 | 1% | 0.2 |
| Garfield County | 2 | 1% | 0.3 |
| Broomfield County | 1 | 0% | 0.1 |
| 5 other counties | 5 | 2% |
Source: DOL RAPIDS apprenticeship FY2025, active status, county-coded; as of December 31, 2025.
Credential types the Colorado Division of Fire Prevention and Control, Department of Public Safety issues for this trade: Fire Protection Sprinkler Contractor licence / Certificate of Competency, Sprinkler fitter or apprentice registration where the state issues one, NICET certification in Automatic Sprinkler System Layout or Water-Based Systems. See how to get a fire sprinkler fitter license in Colorado 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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