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How many licensed plumbers are in Delaware?
Licensed-supply count from the Delaware register, by credential tier and per capita.
As of 2026-08-09, Delaware has 925 licensed plumbers
on its state register, 925 of them at master level.
925
licensed plumbers
925
master level
89.6
per 100k residents
#40
of 42 states
Delaware plumbers by credential tier
Master925
How Delaware compares
State
Licensed plumbers
Per 100k
Nebraska
1,087
54.9
Nevada
970
30.4
Delaware
925
89.6
Tennessee
778
10.9
Mississippi
557
18.9
Delaware is part of 324,175 licensed plumbers nationally, and ranks #29 of 42 published states by per-capita density.
Questions
How many licensed plumbers are there in Delaware?
As of 2026-08-09, Delaware has 925 licensed plumbers on its state register, including 925 at master level.
How many plumbers per capita does Delaware have?
Delaware has 89.6 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.