Benton County offers building opportunities in Willamette Valley, though some factors need consideration.
📊55/100AcreScore
💰$12KLand $/acre
🏠$425KHome Value
👥95,000Population
📈+5.8%Growth (10yr)
🌊20%Flood RiskModerate
🌡️Mild winters, cool summersClimateZone 8b
🏗️ Can You Build Here?
Benton County has local zoning regulations. Check with the county building department for specific rules on your parcel. Barndominiums may require conditional use permits in some zones.
Zone
Min Lot
Barndo OK?
Residential
Varies
⚠️ Conditional
Agricultural
None
✅ Yes
Commercial
Varies
❌ No
Benton County has local zoning. Contact the county building department for specific regulations.
📋 What Permits Do You Need?
Most states allow owner-builders to act as their own general contractor for personal residences. Check Oregon requirements — licensed subs are typically needed for electrical, plumbing, and HVAC.
Required Permits
• Building permit (residential)
• Septic permit (if no public sewer)
• Electrical permit
• Plumbing permit
Permit Office
Benton County Building Department
Corvallis, OR
Contact county clerk for current hours and requirements
🌊 What's the Flood & Soil Risk?
Elevated flood risk at 20%. Benton County has significant FEMA flood zone coverage — careful site selection and flood insurance may be required. Check FEMA maps for your specific parcel.
20%
In Flood Zone
Good
Soil Drainage
Good
Septic Viability
Source: FEMA National Flood Hazard Layer, USDA Web Soil Survey
💰 What Does It Cost?
Affordable land market. At roughly $12,000 per acre, Benton County offers good value for builders looking for rural acreage.
$12K
Median $/acre
$425K
Median Home Value
$120–200
Build Cost $/sqft
1.05%
Property Tax Rate
Source: U.S. Census Bureau ACS 2024, Benton County Assessor
🏔️ Why People Love Living Here
Benton County sits in the heart of Willamette Valley. Portland is 90 min away. Oregon has a state income tax — factor that into your cost-of-living calculations.
📈
Steady Community
A stable community with steady growth — less speculation, more authentic rural living.
🏠
Established Community
Zoning provides predictability — you know what your neighbors can and can't build. Good for long-term property value.
At a Glance
Population95,000
10-Year Growth+5.8%
County SeatCorvallis
State Income TaxYes
ClimateMild winters, cool summers (Zone 8b)
How Close Is Everything?
Portland90 min
Eugene Airport35 min
Austinvaries
💧 Utilities & Infrastructure
Most rural Benton County land uses well water and septic systems. Municipal utilities are available near Corvallis. Check with local utility providers for your specific parcel.
Electric ProviderLocal Co-op / TXU
WaterWell or Municipal
SewerSeptic (most rural)
InternetVaries by location
Cell CoverageGood
Natural GasPropane common in rural areas
🏦 Financing & Incentives
Benton County qualifies for USDA Rural Development loans — zero-down-payment financing for eligible buyers in most areas.
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❓ Frequently Asked Questions
Can I build a barndominium in Benton County?
Check with the Benton County Building Department for specific zoning rules on your parcel. Some zones allow barndominiums outright, others may require conditional use permits.
How much does land cost in Benton County?
Median price is approximately $12,000 per acre, though prices vary by location, road access, and improvements. USDA Rural Development loans may be available for eligible buyers.
Is Benton County eligible for USDA Rural Development loans?
Yes — most of Benton County qualifies for USDA Rural Development programs, including zero-down-payment home loans for eligible buyers.
What is the property tax rate in Benton County?
The effective property tax rate is approximately 1.05%. Check with the county assessor for the most current rates and any available homestead exemptions.
Do I need a licensed contractor to build in Benton County?
Most states allow owner-builders to act as their own general contractor for personal residences, though requirements vary by state and county. In Oregon, check local building codes for specific licensing requirements. You'll typically need licensed professionals for electrical, plumbing, and HVAC work.