How many are licensed in Oklahoma, what level they hold, and how that compares per resident.
As of October 6, 2026, Oklahoma has 6,341 licensed plumbers on its state register.
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“How many plumbers” has more than one honest answer, and published figures disagree because they count different things without saying so. Here is each measure ATI holds for Oklahoma, named.
| Measure | Count | What it counts |
|---|---|---|
| Licensed workers on the state register | 6,341 | Records the register does not mark expired, revoked or surrendered, and that it evidences as a license actually held. This is the figure every ATI surface reports as `current`, and the figure this page leads with. |
| ...of those, explicitly marked active | 4,933 | The narrower subset a register flags as active. Smaller, because many states publish no status at all and those records are counted above but not here. |
| All license records, active or not | 24,328 | Includes lapsed, expired and inactive records. Larger, and not a workforce count. |
| Industry employment (BLS QCEW) | 14,380 | Everyone on the payroll of establishments in this industry, including office and sales staff, and counting a person once per job rather than once per license. |
| Estimated workers in this occupation (ATI model) | 5,657 | Not a published figure: county construction employment scaled by this occupation's share of the metro workforce. An estimate, shown as one. |
| Employer establishments | 1,580 | Physical business locations, not people. BLS QCEW where the county is disclosed, otherwise an ATI estimate on the same occupation share. |
| Registered apprentices | 321 | In a registered program, working toward a license but not yet holding one. |
ATI's headline figure is the first row: individual people holding an active license, counted from the state register itself and refreshed nightly. See methodology and sources.
| State | Licensed plumbers | Per 100k |
|---|---|---|
| Arizona | 6,616 | — |
| Oregon | 6,584 | 155.5 |
| Oklahoma | 6,341 | 156.4 |
| Kentucky | 6,313 | 139.5 |
| Utah | 5,656 | 165.5 |
Oklahoma is part of 415,580 licensed plumbers nationally, and ranks #23 of 32 published states by per-capita density.
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