Sangamon County Home Building Costs
2026 construction cost estimates for Sangamon County, Illinois. Population: 198,000.
County $/sq ft
$194
Illinois avg: $211
vs State Average
-8%
Local market premium
2,000 sq ft home
$388,000
Mid-range estimate
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 | $71,718 | $97,000 | $132,085 |
| 1,000 sq ft | $143,436 | $194,000 | $264,170 |
| 1,500 sq ft | $215,154 | $291,000 | $396,255 |
| 2,000 sq ft | $286,872 | $388,000 | $528,340 |
| 2,500 sq ft | $358,590 | $485,000 | $660,426 |
| 3,000 sq ft | $430,309 | $582,000 | $792,511 |
| 4,000 sq ft | $573,745 | $776,000 | $1,056,681 |
| 5,000 sq ft | $717,181 | $970,000 | $1,320,851 |
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 $188/sq ft).