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Plumber shortage in Idaho: the licensed-supply numbers
What the Idaho register actually shows, by tier and per capita, updated nightly.
As of 2026-08-09, Idaho carries 11,107 licensed plumbers
on its state register, or 565.3 per 100,000 residents.
11,107
licensed plumbers
565.3
per 100k residents
#3
density rank of 42
1.44
apprentice : journeyman
The apprentice-to-journeyman pipeline behind them runs at 1.44 in Idaho, against 0.492 nationally, a read on whether the plumbers supply is being replenished.
By credential tier
Every plumber license on the Idaho register, normalized to one ladder.
Tier
Licensed
Share
Apprentice
5,680
51%
Journeyman
3,943
36%
Contractor / business
1,484
13%
Against comparable states
States nearest Idaho on licensed plumbers per capita.
State
Licensed plumbers
Per 100k
Idaho
11,107
565.3
Maine
16,869
1208.6
Vermont
4,154
641.6
Iowa
18,092
564.1
New Mexico
8,642
408.7
Colorado
21,082
358.7
Counts, not a capacity opinion. We publish the licensed supply and the pipeline
ratio; whether a market can absorb a given project is a judgement for the reader, not a claim we make.
Frequently asked
Is there a plumbers shortage in Idaho?
Reporting on the shortage rarely states how many are actually licensed. Idaho carries 11,107 licensed plumbers on its register as of 2026-08-09, or 565.3 per 100,000 residents. Readers can weigh that supply against demand directly.
How many licensed plumbers does Idaho have?
11,107 on the state register as of 2026-08-09.
Where does the shortage narrative come from?
Industry analyses project national shortfalls of hundreds of thousands of skilled-trades workers against data-center and electrification demand. Those are demand-side estimates; the figure here is the licensed supply on the register today.
New licenses, ladder upgrades, classification changes and lapses, by market and credential tier. Read the quarterly free, or license the underlying data.