Union County offers building opportunities in Eastern Oregon, though some factors need consideration.
📊64/100AcreScore
💰$3KLand $/acre
🏠$240KHome Value
👥27,000Population
📈+0.8%Growth (10yr)
🌊15%Flood RiskModerate
🌡️Cold winters, warm summersClimateZone 6b
🏗️ Can You Build Here?
Union 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
Union 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
Union County Building Department
La Grande, OR
Contact county clerk for current hours and requirements
🌊 What's the Flood & Soil Risk?
Moderate flood risk. 15% of county land is in FEMA flood zones. Most buildable parcels are outside hazard areas, but always verify your specific site.
15%
In Flood Zone
Good
Soil Drainage
Good
Septic Viability
Source: FEMA National Flood Hazard Layer, USDA Web Soil Survey
💰 What Does It Cost?
Extremely affordable. Median land prices around $3,000 per acre make Union County one of the most budget-friendly options in Oregon.
$3K
Median $/acre
$240K
Median Home Value
$120–200
Build Cost $/sqft
0.88%
Property Tax Rate
Source: U.S. Census Bureau ACS 2024, Union County Assessor
🏔️ Why People Love Living Here
Union County sits in the heart of Eastern Oregon. Boise is 170 min away. Oregon has a state income tax — factor that into your cost-of-living calculations.
🏗️
Affordable Land
Median land at $3,000/acre means you can buy more, build bigger, and still stay under budget.
🏠
Established Community
Zoning provides predictability — you know what your neighbors can and can't build. Good for long-term property value.
At a Glance
Population27,000
10-Year Growth+0.8%
County SeatLa Grande
State Income TaxYes
ClimateCold winters, warm summers (Zone 6b)
How Close Is Everything?
Boise170 min
Boise Airport175 min
Austinvaries
💧 Utilities & Infrastructure
Most rural Union County land uses well water and septic systems. Municipal utilities are available near La Grande. Check with local utility providers for your specific parcel.
Electric ProviderLocal Co-op / TXU
WaterWell or Municipal
SewerSeptic (most rural)
InternetVaries by location
Cell CoverageVariable
Natural GasPropane common in rural areas
🏦 Financing & Incentives
Union 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 Union County?
Check with the Union 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 Union County?
Median price is approximately $3,000 per acre, though prices vary by location, road access, and improvements. USDA Rural Development loans may be available for eligible buyers.
Is Union County eligible for USDA Rural Development loans?
Yes — most of Union County qualifies for USDA Rural Development programs, including zero-down-payment home loans for eligible buyers.
What is the property tax rate in Union County?
The effective property tax rate is approximately 0.88%. Check with the county assessor for the most current rates and any available homestead exemptions.
Do I need a licensed contractor to build in Union 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.