How much does it cost to build a house in your state? Browse our complete guides for all 50 states, updated with 2026 RSMeans data.
Home construction costs vary by as much as 3x from the cheapest to most expensive states. Hawaii ($263/sq ft) and California ($200/sq ft) are the most expensive markets in 2026. Mississippi ($90/sq ft) and Arkansas ($90/sq ft) are the most affordable.
The national average sits at $120 per square foot for a standard finish home. A 2,000 sq ft home costs $240,000 at the national average — but the same home costs $526,000 in Hawaii and $180,000 in Mississippi. Understanding your state's cost index before you start planning can save you tens of thousands of dollars.
These figures are based on 2026 RSMeans construction data, the industry standard used by architects, engineers, and general contractors nationwide. Each state guide includes a full city-by-city breakdown, since costs within a state can vary 15–25% between urban and rural areas.