Benton County, Oregon Eviction Risk: High

Benton County, Oregon eviction laws carries an average eviction-risk score of 7.3/10 (Elevated) across its 12 cities, placing it squarely in the middle third of Oregon's 36 counties. Twenty counties in the state score higher, and 15 score lower, so landlords here face conditions that are meaningfully more demanding than a typical rural Oregon market but not as acute as the state's highest-risk jurisdictions. With a 54% renter share and an average rent of $1,419, the tenant base is substantial, and a rent-burden rate of 39.2% signals that a significant portion of renters are already stretched thin.

What the county average obscures is a wide gap between its quieter markets and its most challenging ones. Scores across Benton County run from 5.4 to 7.5, a spread of 2.1 points that can easily be the difference between a stable long-term hold and a portfolio position that requires constant attention. Investors evaluating any specific address should weight the city-level score heavily rather than relying on the county figure alone.

The cities inside Benton County

The highest-risk city in the county is Alsea, which scores 7.5/10 and leads all Benton County markets in tenant-side pressure. Philomath, with a population of 5,642, comes in close behind at 7.3/10, a meaningful elevation above the county average for a city of its size. Monroe scores 6.8/10, rounding out the top three cities where operators should budget conservatively for vacancy, turnover, and potential eviction proceedings.

Corvallis, the county seat and by far the largest city at 59,960 residents, scores 6.2/10, nearly matching the county average. At the lower end, Alpine scores 5.4/10, Halsey and Summit each score 5.5/10, and Adair Village scores 5.7/10. The range illustrates how risk is genuinely hyper-local inside a single county: a property in Alsea faces materially different operating conditions than one ten miles away in Alpine, and underwriting both the same way is a mistake.

State-level laws that apply here

Every landlord in Benton County operates under Oregon state law, specifically ORS § 90 (Residential Landlord and Tenant). For nonpayment of rent, the required notice period is 14 days under ORS 90.394. A material non-curable violation carries a 3-day notice under ORS 90.396. No-cause terminations are restricted: within the first year a 30-day notice applies, but after one year of tenancy the notice period extends to 90 days under ORS 90.427, and just cause is required to terminate. Understanding the full Oregon eviction process matters here because an uncontested case still takes 30 to 60 days, and a contested proceeding can run 60 to 150 days.

On Oregon eviction costs, landlords should anticipate a court filing fee of $165 to $275, a sheriff lockout fee of $50 to $175, and attorney fees ranging from $750 to $3,500 depending on complexity. Oregon also caps annual rent increases at 7% plus CPI, with a 10% ceiling, and the state does not preempt local rent-control ordinances, meaning municipal rules can layer on top of state law. Source of income is a protected class under state fair-housing enforcement by the Oregon Bureau of Labor and Industries, Civil Rights Division, which adds another screening constraint landlords must manage carefully.

A poverty rate of 23.2% across the county reinforces the rent-burden picture and is a meaningful underwriting input; the city-by-city grid above breaks that exposure down to the market level where it actually affects lease-up and collections.