Oregon · 4 covered places · 64 ZIP codes
Plumbers in Multnomah County, OR
We cover 4 cities and towns in Multnomah County, Oregon, across 64 ZIP codes, including Portland, Gresham, Troutdale. About 1,049,000 people live in those ZIP codes. 35% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.
| Year built | Share of homes |
|---|---|
| Before 1940 | 19% |
| 1940–1959 | 16% |
| 1960–1979 | 24% |
| 1980–1999 | 20% |
| 2000 or later | 22% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Portland | 929,296 | 37% |
| Gresham | 86,019 | 8% |
| Troutdale | 21,788 | 8% |
| Fairview | 11,702 | 5% |
What goes wrong in Multnomah County homes
Pre-1960 homes: galvanized pipe and cast iron
35% of homes in Multnomah County's covered ZIP codes were built before 1960, 19% of them before 1940. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.
Common plumbing work in Multnomah County
Other covered towns in Multnomah County
- Fairview (1 ZIP)
- Gresham (2 ZIPs)
- Portland (60 ZIPs)
- Troutdale (1 ZIP)
Multnomah County plumbing FAQ
Which towns in Multnomah County do you cover?
4 places: Fairview, Gresham, Portland, Troutdale. Enter your ZIP code to confirm coverage for your street.
How old are homes in Multnomah County?
Across the covered ZIP codes, Census estimates put 35% of homes as built before 1960, 24% from 1960 to 1979, 20% from 1980 to 1999 and 22% in 2000 or later.
Who licenses plumbers in Multnomah County, OR?
Oregon's Building Codes Division licenses plumbers, and contractors must also hold a Construction Contractors Board license.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Multnomah County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Multnomah County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.