ZIP 97304 falls in Polk County, Oregon, where we hold 4,375 parcels measured as septic county-wide and 21,491 on sewer. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 97304.
ZCTA 97304 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Polk County, Oregon | 87% | 137 | 4,375 | 21,491 |
| Yamhill County, Oregon | 13% | 285 | 8,576 | 23,809 |
5 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| On-Site Septic & Excavation | Salem | (503) 362-7000 | 5.0 (6) |
| Cameron Excavating | Salem | (503) 480-6595 | — |
| Precision Excavating | Salem | (503) 868-7388 | — |
| Valley Septic Service | Salem | (503) 588-1115 | — |
| Valley Septic Service | Salem | (503) 588-1115 | — |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We hold 4,375 parcels measured as septic for Polk County, Oregon as a whole, not broken out by ZIP.
ZIP 97304 spans 2 counties: Polk County, Oregon, Yamhill County, Oregon.