Everyone quotes the shortage. Here is the count District of Columbia actually has, by skill level and per resident, updated every night.
As of October 6, 2026, District of Columbia carries 1,287 licensed plumbers on its state register, or 189.6 per 100,000 residents.
The apprentice-to-journeyman pipeline behind them runs at 0.07 in District of Columbia, against 0.555 nationally, a read on whether the plumbers supply is being replenished.
Every plumber license on the District of Columbia register, normalized to one ladder.
| Tier | Licensed | Share |
|---|---|---|
| Apprentice | 16 | 1% |
| Journeyman | 235 | 18% |
| Master | 711 | 55% |
| Contractor / business | 325 | 25% |
States nearest District of Columbia on licensed plumbers per capita.
| State | Licensed plumbers | Per 100k |
|---|---|---|
| District of Columbia | 1,287 | 189.6 |
| Hawaii | 3,345 | 233.1 |
| Texas | 66,527 | 218.1 |
| Louisiana | 9,417 | 205.9 |
| Michigan | 18,403 | 183.3 |
| Wisconsin | 10,330 | 174.8 |
| Rhode Island | 1,912 | 174.5 |
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