The cost per square foot to build a house varies from $100 in Mississippi to $380+ in Hawaii. That 3.8x difference isn't random — it reflects local labor markets, material supply chains, building codes, permit costs, and contractor availability.
This guide presents 2026 cost-per-square-foot data for all 50 states, based on RSMeans regional cost indices and completed project data. Use it to understand where your state falls, and what drives costs up or down in your market.
How to read these numbers: All figures are for a standard-finish, single-family home. Basic finish runs approximately 15% below these figures; premium finish runs 35% above. These are construction costs only — they do not include land, permits, or impact fees.
Highest cost states: - Hawaii: $280–$380/sq ft (1.55x national average) - California: $250–$360/sq ft (1.45x) - New York: $225–$325/sq ft (1.38x) - Alaska: $220–$310/sq ft (1.35x) - Massachusetts: $215–$295/sq ft (1.32x) - New Jersey: $210–$290/sq ft (1.30x) - Washington: $200–$285/sq ft (1.28x) - Connecticut: $195–$275/sq ft (1.25x)
Above average cost states: - Illinois: $185–$260/sq ft (1.20x) - Maryland: $180–$250/sq ft (1.18x) - Oregon: $175–$245/sq ft (1.15x) - Colorado: $170–$240/sq ft (1.12x) - Minnesota: $165–$235/sq ft (1.08x) - Nevada: $165–$230/sq ft (1.08x) - Pennsylvania: $165–$230/sq ft (1.10x) - Arizona: $160–$225/sq ft (1.05x) - Virginia: $160–$225/sq ft (1.05x)
Near average cost states: - Ohio: $155–$220/sq ft (1.00x) - Wisconsin: $155–$215/sq ft (1.00x) - Michigan: $155–$215/sq ft (1.02x) - Florida: $155–$215/sq ft (1.02x) - Utah: $155–$215/sq ft (1.02x) - Indiana: $145–$205/sq ft (0.96x) - North Carolina: $145–$205/sq ft (0.96x) - Georgia: $150–$210/sq ft (0.98x)
Below average cost states: - Texas: $145–$200/sq ft (0.95x) - Montana: $145–$200/sq ft (0.95x) - New Mexico: $140–$195/sq ft (0.93x) - Kansas: $140–$195/sq ft (0.93x) - Idaho: $140–$195/sq ft (0.93x) - Iowa: $140–$195/sq ft (0.94x) - Tennessee: $140–$195/sq ft (0.93x) - Missouri: $140–$190/sq ft (0.94x) - Nebraska: $135–$190/sq ft (0.92x) - Wyoming: $135–$190/sq ft (0.92x) - South Dakota: $135–$185/sq ft (0.90x) - North Dakota: $135–$185/sq ft (0.92x) - Oklahoma: $135–$185/sq ft (0.91x) - Arkansas: $130–$180/sq ft (0.89x) - Kentucky: $130–$180/sq ft average - West Virginia: $130–$180/sq ft average - Louisiana: $130–$180/sq ft (0.90x) - Alabama: $125–$175/sq ft (0.90x) - South Carolina: $130–$180/sq ft average
Lowest cost states: - Mississippi: $100–$150/sq ft (0.88x) - Alabama: $125–$170/sq ft (0.90x) - Arkansas: $125–$170/sq ft (0.89x)
Labor market: This is the dominant factor. In markets like San Francisco and New York, union labor rates for electricians and plumbers can be 3–4x higher than in rural Mississippi. Labor represents 38–42% of total build cost, so labor rate differences cascade dramatically into total cost.
Material supply chains: States closer to lumber mills (Pacific Northwest, Southeast) generally pay less for framing lumber. States reliant on long-haul trucking see higher delivered material costs.
Building codes: California's Title 24 energy code, New York's strict seismic provisions, and Florida's hurricane-rated construction requirements all add cost above the national baseline. States with less prescriptive codes (Texas, many rural states) have fewer mandatory upgrades.
Permit and inspection costs: California's permit fees and plan check requirements alone can add $8,000–$20,000 to a project compared to a low-cost state.
Contractor competition: Markets with many active builders and subcontractors tend to have more competitive pricing. Markets where skilled trades are scarce (Hawaii, Alaska, parts of rural America) command premium rates.
The cost-per-square-foot figure is a useful benchmark but requires adjustment for your specific project.
Start with the base calculation: Cost per sq ft x your square footage = base construction cost
Then add: - GC overhead and profit: +15% (standard for full-service general contractors) - Contingency: +5–10% (10–15% recommended in 2026) - Permits and impact fees: $1,500–$15,000+ depending on location - Site work and utilities: $10,000–$40,000 depending on lot condition - Financing costs: Typically 1–3% of project cost for construction loan interest
What's NOT included in standard cost-per-square-foot figures: - Land purchase price - Architectural/engineering fees ($8,000–$25,000) - Furniture and landscaping - Moving costs
Example calculation for a 2,000 sq ft home in Colorado (1.12x index): - Base: 2,000 x $180 = $360,000 - GC overhead (15%): +$54,000 - Contingency (10%): +$36,000 - Permits: +$4,000 - Site work: +$15,000 - Total project cost: ~$469,000
This is why "cost per square foot" alone is misleading — the actual all-in total is typically 30–45% higher than the base construction cost.
A natural question is: why would anyone build in Hawaii or California when Mississippi costs 60% less?
The answer is usually that you don't choose your build state — you choose it based on where you live, work, and want to stay.
But the cost differential does reflect real differences in what you're getting:
Higher cost states tend to have: - Stricter energy codes (meaning lower operating costs after you move in) - Higher labor quality and licensing requirements - More subcontractor accountability and warranty protection - Access to high-quality finished goods closer to source (California cabinetry, Pacific Northwest lumber)
Lower cost states tend to have: - Faster permitting and inspection timelines - Less regulatory complexity - More competitive builder markets - Lower cost of living overall (which affects ongoing ownership costs)
The bottom line: the construction cost differential is real, but so is the lifetime value difference. A $350,000 home in Texas and a $480,000 home in California are not the same investment — local market appreciation, rental potential, and resale dynamics are completely different.