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Oregon · 8 covered places · 8 ZIP codes

Plumbers in Columbia County, OR

We cover 8 cities and towns in Columbia County, Oregon, across 8 ZIP codes, including Saint Helens, Scappoose, Rainier. About 54,000 people live in those ZIP codes. 26% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.

When Columbia County homes were built
Year builtShare of homes
Before 1940
16%
1940–1959
10%
1960–1979
24%
1980–1999
30%
2000 or later
20%

Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.

Largest covered places
PlaceResidents in covered ZIPsBuilt before 1960
Saint Helens17,58929%
Scappoose12,79420%
Rainier7,09625%
Clatskanie6,56828%
Vernonia3,73030%
Warren3,40136%
Columbia City1,80614%
Deer Island1,40413%

What goes wrong in Columbia County homes

1980s and 90s construction and polybutylene

30% of homes were built between 1980 and 1999. Polybutylene supply pipe was installed widely in US homes from about 1978 to 1995, so houses from these years are worth checking for gray plastic pipe stamped PB2110, usually visible at the water heater or under sinks. Insurers and buyers often ask about it. See polybutylene replacement.

Pre-1960 homes: galvanized pipe and cast iron

26% of homes in Columbia County's covered ZIP codes were built before 1960, 16% 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 Columbia County

Other covered towns in Columbia County

  • Clatskanie (1 ZIP)
  • Columbia City (1 ZIP)
  • Deer Island (1 ZIP)
  • Rainier (1 ZIP)
  • Saint Helens (1 ZIP)
  • Scappoose (1 ZIP)
  • Vernonia (1 ZIP)
  • Warren (1 ZIP)

All of Oregon

Columbia County plumbing FAQ

Which towns in Columbia County do you cover?

8 places: Clatskanie, Columbia City, Deer Island, Rainier, Saint Helens, Scappoose, Vernonia, Warren. Enter your ZIP code to confirm coverage for your street.

How old are homes in Columbia County?

Across the covered ZIP codes, Census estimates put 26% of homes as built before 1960, 24% from 1960 to 1979, 30% from 1980 to 1999 and 20% in 2000 or later.

Who licenses plumbers in Columbia 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 Columbia County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.

Need a plumber in Columbia County?

Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.

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