Salem is one city across two counties — and the river between them is also a tax line. Buy on the wrong side without knowing it and you'll pay more for the same house.
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Talk to a Specialist →Salem straddles the Willamette River. East of the river is Marion County (effective rate ~0.87%–0.92%; Salem city ~0.92%, county median ~0.87%). West of the river — West Salem, plus the town of Dallas — is Polk County (~0.98%). The "Salem, OR" mailing address tells you nothing about which county, and therefore which tax rate, a home carries. Two near-identical homes on opposite banks can have meaningfully different bills.
| County | Effective rate | Where | 55+ communities |
|---|---|---|---|
| Marion | ~0.87–0.92% | East Salem, Woodburn | Woodburn Estates, Meadowlark, Terra Buena, Sundial |
| Polk | ~0.98% | West Salem, Dallas | Salemtowne, Ceres Gleann |
On a $400,000 home, Polk County's ~0.98% rate produces about $325/month in property tax. The same home in Marion at ~0.89% runs about $297/month — roughly $28/month, or $336/year, less. Salemtowne and Ceres Gleann are Polk; Woodburn and the Salem manufactured-home communities are Marion. The west-side communities may still be worth it for the golf, the setting, or new construction — just know you're paying a Polk premium.
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Whichever county, Oregon's Measure 50 caps assessed-value growth at ~3%/year, so a long-held home's tax bill sits well below market — and resets upward when you buy. This matters most at Woodburn, where homes have been owned since the 1980s–90s and the reset can be dramatic. Pull the assessor's Real Market Value and Assessed Value (Marion or Polk) before budgeting; never trust the seller's current bill.
The county line is invisible on a listing but real on your tax bill. Get matched with a Salem-area specialist who will confirm the parcel's county and pull the assessed-value tax before you offer. General information, not tax advice.
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