Current Illiopolis median home price: $122,506
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2026 March | $136,302 | $122,672 | $149,932 |
| 2026 April | $136,658 | $122,992 | $150,324 |
| 2026 May | $137,771 | $123,994 | $151,548 |
| 2026 June | $138,893 | $125,004 | $152,782 |
| 2026 July | $139,625 | $125,662 | $153,587 |
| 2026 August | $139,403 | $125,462 | $153,343 |
| 2026 September | $139,298 | $125,368 | $153,227 |
| 2026 October | $139,345 | $125,410 | $153,279 |
| 2026 November | $139,640 | $125,676 | $153,604 |
| 2026 December | $140,777 | $126,699 | $154,855 |