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How many licensed boiler operators are in Maine?

How many are licensed in Maine, what level they hold, and how that compares per resident.

As of October 6, 2026, Maine has 2,114 licensed boiler operators on its state register.

2,114
licensed boiler operators
151.5
per 100k residents
#7
of 20 states

What level they hold

Journeyman2,048
Inspector66

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Which number are you looking for?

“How many boiler operators” 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 Maine, named.

MeasureCountWhat it counts
Licensed workers on the state register2,114Records 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 active1,925The 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.
Pending applications on the register, not counted above121The register holds these and evidences none of them as a license held: a bare "Pending" is an application, not a licensee. Pending whose own wording shows a licensed holder mid-process is counted above instead, which is why Oklahoma's "Pending - CE Hours" (a licensee who owes continuing education) is in the figure and New Jersey's bare "Pending" is not.
All license records, active or not14,422Includes lapsed, expired and inactive records. Larger, and not a workforce count.
Industry employment (BLS QCEW)4,911Everyone 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.
Employer establishments703Physical business locations, not people. BLS QCEW where the county is disclosed, otherwise an ATI estimate on the same occupation share.

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.

How Maine compares

StateLicensed boiler operatorsPer 100k
Montana2,405212.3
Michigan2,12521.2
Maine2,114151.5
New York1,3727.0
Utah1,111—

Maine is part of 51,348 licensed boiler operators nationally, and ranks #4 of 14 published states by per-capita density.

Common questions

How many licensed boiler operators are there in Maine?
As of October 6, 2026, Maine has 2,114 licensed boiler operators on its state register.
How many boiler operators per capita does Maine have?
Maine has 151.5 licensed boiler operators per 100,000 residents (Census 2023 population).
Is this the same as employment estimates?
No. This is a count of license records 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.

Related pages

Market
Maine licensed trades supply
License
How to get a boiler operator license in Maine
Electricians
Electricians in Maine
HVAC Technicians
HVAC Technicians in Maine
Plumbers
Plumbers in Maine
This number changes tonight.

This page is a free snapshot of Maine. Track the same market every night and see which contractors just got licensed, added a trade, or dropped off, and pull the full record, with contact details where available, on any of them. Get the weekly intelligence email on the markets you follow. ATI is in private beta; apply for access.

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