Plumbing businesses in Maine.
Maine holds 426 tracked plumbing businesses, 0.9% of the national total, ranking #36 of 51 with 13.86 per 1,000 employer firms in the state.
426
Tracked businesses
#36
National rank
13.86
Per 1,000 businesses
Portland
Top city
Where they concentrate
| City | Tracked businesses | Share of state |
|---|---|---|
| Portland | 8 | 1.9% |
| Biddeford | 6 | 1.4% |
| Westbrook | 4 | 0.9% |
| South Portland | 4 | 0.9% |
| Turner | 3 | 0.7% |
| Scarborough | 3 | 0.7% |
| Windham | 3 | 0.7% |
| Rockland | 3 | 0.7% |
| Waterville | 3 | 0.7% |
| Falmouth | 3 | 0.7% |
Methodology. Web-present plumbing businesses tracked nationally (deduplicated). An activity-verification pass is in progress; counts are tracked entities, not verified-active counts, and will tighten as verification completes.
Total employer firms (all sectors) per state, US Census Bureau Business Dynamics Statistics, 2023. Density is vertical entities per 1,000 employer firms. Maine: 30,735 employer firms. Last updated 2026-06-11. Cite freely with a link.
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