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How many licensed plumbers are in Maine?
Licensed-supply count from the Maine register, by credential tier and per capita.
As of 2026-08-09, Maine has 16,869 licensed plumbers
on its state register, 4,819 of them at master level.
16,869
licensed plumbers
4,819
master level
1208.6
per 100k residents
#6
of 42 states
Maine plumbers by credential tier
Apprentice3,197
Journeyman8,853
Master4,819
How Maine compares
State
Licensed plumbers
Per 100k
Michigan
17,967
179.0
Minnesota
17,925
312.4
Maine
16,869
1208.6
Illinois
15,751
125.5
California
14,076
36.1
Maine is part of 324,175 licensed plumbers nationally, and ranks #1 of 42 published states by per-capita density.
Questions
How many licensed plumbers are there in Maine?
As of 2026-08-09, Maine has 16,869 licensed plumbers on its state register, including 4,819 at master level.
How many plumbers per capita does Maine have?
Maine has 1208.6 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.