← Small Fish
How many plumbers are in Washington, DC?
There are 553 plumbers in Washington, DC. 455 of them (82%) have a website.
553
plumbers listed
82%
have a website
8.2
per 10,000 residents
Selling to plumbers in Washington?
Small Fish reads each one’s website and keeps the ones that fit what you sell, like “no online booking”, with a phone, an email and a one-line reason to reach out.
Find the ones worth contacting →How Washington compares
Washington ranks 3 of 31 cities we counted for plumbers per resident.
| City | plumbers | per 10,000 |
|---|---|---|
| Hempstead, NY | 1,336 | 16.8 |
| Boston, MA | 572 | 8.5 |
| Washington, DC | 553 | 8.2 |
| San Francisco, CA | 643 | 7.4 |
| The Bronx, NY | 1,064 | 7.2 |
| Denver, CO | 515 | 7.2 |
| Dallas, TX | 895 | 6.9 |
| Manhattan, NY | 1,079 | 6.4 |
| Seattle, WA | 460 | 6.2 |
| Fort Worth, TX | 556 | 5.6 |
| Portland, OR | 315 | 4.8 |
| San Jose, CA | 467 | 4.5 |
Other businesses in Washington
- restaurants: 15,948
- real estate agents: 7,748
- law firms: 4,340
- dentists: 3,971
- hair salons: 3,405
- insurance agents: 3,025
- auto repair shops: 2,823
- accountants: 1,854
- gyms: 1,796
- nail salons: 1,385
- barbershops: 1,211
- coffee shops: 1,159
- physical therapists: 1,045
- landscapers: 982
- chiropractors: 977
- bakeries: 907
- HVAC companies: 775
- house cleaning services: 737
- roofers: 675
- optometrists: 607
- veterinarians: 524
- electricians: 506
- med spas: 478
- yoga studios: 362
- florists: 274
- pest control companies: 271
- painters: 232
- pet groomers: 188
- car dealers: 3
How we count
From the open Overture Maps business listings (release 2026-10-21.0), within Washington’s boundary, counted in October 2026. Listings data, not a census: a few may have closed or moved, and a business filed under another category is not included. Population is the city’s own figure from the same release’s boundaries.