Plumbers in King County, Washington
King County, Washington has 468 plumbing, heating and air-conditioning contractor businesses with employees, employing 11,062 people (US Census Bureau, 2023 County Business Patterns).
That is 4.7 businesses per 10,000 homes, against 6.8 across Washington.
King County ranks 28 of 33 counties in Washington for businesses per 10,000 homes.
Their payroll averages $100,078 per employee a year.
Across Washington, plumbers earn a median of $79,070 a year (US Bureau of Labor Statistics, May 2024).
Figures last updated on .
- Businesses with employees
- 468
- Their employees
- 11,062
- Businesses per 10,000 homes
- 4.7
Plumbers in King County: businesses and jobs
| King County | Washington | United States | |
|---|---|---|---|
| Businesses with employees | 468 | 2,242 | 111,207 |
| Their employees | 11,062 | 33,116 | 1,214,761 |
| Annual payroll | $1,107,062,000 | $2,964,140,000 | — |
| Businesses per 10,000 homes | 4.7 | 6.8 | 7.7 |
The homes behind the work in King County
| King County | Washington | United States | |
|---|---|---|---|
| Homes built before 1940 | 10.9% (±0.2 points) | 9.6% | 11.7% |
| Homes lacking complete plumbing | 0.3% (±0.1 points) | 0.4% | 0.4% |
| Homes in buildings of 20 or more units | 25.2% (±0.3 points) | 13.0% | 10.3% |
| Households that rent | 44.6% (±0.4 points) | 36.2% | 34.8% |
Homes built before 1940: 10.9% (±0.2 points) in King County, higher than across Washington (9.6%).
Homes in buildings of 20 or more units: 25.2% (±0.3 points) in King County, higher than across Washington (13.0%).
Households that rent: 44.6% (±0.4 points) in King County, higher than across Washington (36.2%).
Places in King County
| Place | Residents | Built before 1980 | Households that rent |
|---|---|---|---|
| Seattle | 754,195 | 52.8% | 56.3% |
| Bellevue | 151,847 | 46.7% | 48.0% |
| Kent | 135,603 | 38.5% | 42.8% |
| Renton | 105,317 | 39.0% | 45.6% |
| Federal Way | 99,493 | 40.2% | 44.7% |
| Kirkland | 92,621 | 43.6% | 39.2% |
| Auburn | 85,676 | 33.3% | 39.4% |
| Redmond | 77,353 | 25.9% | 56.8% |
| Sammamish | 66,463 | 13.0% | 17.4% |
| Shoreline | 61,431 | 65.3% | 33.7% |
| Burien | 51,513 | 67.0% | 43.4% |
| Bothell | 49,610 | 26.8% | 34.5% |
| Issaquah | 39,591 | 17.5% | 42.6% |
| Des Moines | 32,823 | 59.8% | 39.4% |
| SeaTac | 32,414 | 62.8% | 53.5% |
Counties in Washington with a similar number of plumbing, heating and air-conditioning contractor businesses
| County | Businesses with employees | Businesses per 10,000 homes | Difference from King County, per 10,000 homes |
|---|---|---|---|
| Stevens County | 11 | 4.8 | +0.2 |
| Mason County | 15 | 4.4 | −0.3 |
| Grays Harbor County | 16 | 4.3 | −0.3 |
| Grant County | 22 | 5.5 | +0.8 |
| Klickitat County | 6 | 5.5 | +0.8 |
| Whitman County | 8 | 3.6 | −1.0 |
Licenses for plumbers in Washington
Federal rules and model codes for plumbers
- Safe Drinking Water Act lead-free plumbing (42 U.S.C. § 300g-6)
- EPA Renovation, Repair and Painting Rule (40 CFR part 745, subpart E)
- OSHA respirable crystalline silica in construction (29 CFR 1926.1153)
- International Plumbing Code (ICC) and Uniform Plumbing Code (IAPMO)
Jobs and pay are published by state, not by county; the county figures are businesses and their employees.
Business counts are establishments: a company with offices in two counties is counted in each.
What you can do on Seayora in King County
One account for renting, owning, managing and fixing homes, with these figures beside you.
Do repairs, renovations or maintenance?
Get found by owners and renters near King County, and send estimates and invoices from your phone.
Own or manage a rental?
List it, sign the lease and collect rent online, with the figures for King County beside you.
Create a landlord account · See what landlords get
Looking for a place to rent?
Browse homes for rent near King County, save the ones you like and apply online.
Questions about King County
How many plumbing, heating and air-conditioning contractor businesses are in King County?
The Census Bureau counts 468 plumbing, heating and air-conditioning contractor businesses with employees in King County (2023 County Business Patterns).
How much do plumbers make in King County?
Pay is published by state: across Washington, plumbers earn a median of $79,070 a year (US Bureau of Labor Statistics, May 2024).
Do plumbers need a license in King County?
Licenses for this trade are issued by Washington, and a city or county in King County may add its own; the US Department of Labor’s License Finder lists the state’s, and the local building department says which permits a job needs.
Sources
- US Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2024
- US Census Bureau, County Business Patterns 2023
- License Finder: plumbers in Washington (US Department of Labor, CareerOneStop)
- Safe Drinking Water Act lead-free plumbing (42 U.S.C. § 300g-6)
- EPA Renovation, Repair and Painting Rule (40 CFR part 745, subpart E)
- OSHA respirable crystalline silica in construction (29 CFR 1926.1153)
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — King County, Washington
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau and the US Bureau of Labor Statistics; Seayora reproduces them and does not adjust them. Rules are summarized from their official text, which governs; this page is not legal advice, and a state or city may add requirements of its own.
Figures last updated on .