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How many licensed plumbers are in Idaho?
Licensed-supply count from the Idaho register, by credential tier and per capita.
As of 2026-08-09, Idaho has 11,107 licensed plumbers
on its state register.
11,107
licensed plumbers
565.3
per 100k residents
#10
of 42 states
Idaho plumbers by credential tier
Apprentice5,680
Journeyman3,943
Contractor1,484
How Idaho compares
State
Licensed plumbers
Per 100k
California
14,076
36.1
Indiana
12,526
182.5
Idaho
11,107
565.3
Wisconsin
10,198
172.5
Florida
8,973
39.7
Idaho is part of 324,175 licensed plumbers nationally, and ranks #3 of 42 published states by per-capita density.
Questions
How many licensed plumbers are there in Idaho?
As of 2026-08-09, Idaho has 11,107 licensed plumbers on its state register.
How many plumbers per capita does Idaho have?
Idaho has 565.3 licensed plumbers per 100,000 residents (Census 2023 population).
Is this the same as employment estimates?
No. This is a count of active licenses on the state register, not a BLS survey estimate of employment. Licensed capacity and estimated employment are different numbers.
How often is this updated?
The register is re-pulled and re-judged nightly. Every figure carries its as-of date.
New licenses, ladder upgrades, classification changes and lapses, by market and credential tier. Read the quarterly free, or license the underlying data.