Sangamon County Home Building Costs
Building a house in Sangamon County, Illinois costs about $184/sq ft in 2026 — roughly $368,000 for a 2,000 sq ft mid-range home (construction only, land excluded). Population: 198,000.
Local Market Factors
- ›Springfield area
- ›State government economy, stable costs
Cost by Home Size in Sangamon County
| Home Size | Basic | Mid-Range | Premium |
|---|---|---|---|
| 500 sq ft | $68,021 | $92,000 | $125,277 |
| 1,000 sq ft | $136,043 | $184,000 | $250,553 |
| 1,500 sq ft | $204,064 | $276,000 | $375,830 |
| 2,000 sq ft | $272,085 | $368,000 | $501,106 |
| 2,500 sq ft | $340,106 | $460,000 | $626,383 |
| 3,000 sq ft | $408,128 | $552,000 | $751,660 |
| 4,000 sq ft | $544,170 | $736,000 | $1,002,213 |
| 5,000 sq ft | $680,213 | $920,000 | $1,252,766 |
Costs are estimates only and represent construction costs, excluding land, architect fees, permits, and landscaping. Add 30–40% to these figures for total project cost.
County multiplier of 0.92× applied to Illinois state average (which itself is 1.12× the national average of $179/sq ft).
Cost data: HouseBuildCalc Permit Cost Index (876,000+ building permits, 1,700+ ZIP codes), U.S. Census Bureau Survey of Construction, BLS Producer Price Index, NAHB Cost of Constructing a Home (published summaries). County-level multipliers are estimates derived from regional market data. For planning purposes only.