Plumbing businesses in Washington.
Washington holds 963 tracked plumbing businesses, 1.9% of the national total, ranking #20 of 51 with 6.75 per 1,000 employer firms in the state.
963
Tracked businesses
#20
National rank
6.75
Per 1,000 businesses
Seattle
Top city
Where they concentrate
| City | Tracked businesses | Share of state |
|---|---|---|
| Seattle | 74 | 7.7% |
| Tacoma | 23 | 2.4% |
| Spokane | 18 | 1.9% |
| Kent | 15 | 1.6% |
| Olympia | 14 | 1.5% |
| Lynnwood | 12 | 1.2% |
| Everett | 11 | 1.1% |
| Bellevue | 10 | 1.0% |
| Vancouver | 10 | 1.0% |
| Woodinville | 10 | 1.0% |
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. Washington: 142,661 employer firms. Last updated 2026-06-11. Cite freely with a link.
Buying in Washington?
Recurring demand, fragmented ownership, and a deep bench of owner-operators approaching retirement make plumbing one of the most acquired trades in the country. Set a free alert and get matched when verified listings launch in Washington.
Selling one of the 963?
Start with the free valuation estimator: a market-anchored range in two minutes, assumptions stated, nothing stored.
More states: Virginia · West Virginia · all states