| Index | Grantfork | Illinois | National |
| Median home price | $127,000 | $174,800 | $184,700 |
| Median rent asked | $730 | $925 | $949 |
| Avg. people per household | 3.0 | 2.6 | 2.6 |
| Owner occupied households | 87.8% | 66.0% | 63.6% |
| Renter occupied households | 12.2% | 34.0% | 36.4% |
| Index | Grantfork | Illinois | National |
| Zillow home value index | n/a | $168,800 | $196,500 |
| Year over year appreciation rate | n/a | 5.76% | 6.79% |
| 5 year average appreciation rate | n/a | 3.66% | 5.28% |
| 10 year average appreciation rate | n/a | -1.85% | 0.01% |
| City, State | Population | Home Price | National Avg. |
| Donnellson, IL | 176 | $42,500 | 77% |
| Panama, IL | 287 | $49,200 | 73% |
| Sorento, IL | 530 | $50,500 | 73% |
| Old Ripley, IL | 103 | $65,000 | 65% |
| Williamson, IL | 233 | $66,800 | 64% |
| Grantfork, IL | 360 | $127,000 | 31% |
| City, State | Population | Home Price | National Avg. |
| Cobbtown, GA | 360 | $71,900 | 61% |
| Downsville, MD | 360 | $0 | 100% |
| Freeburn, KY | 360 | $86,000 | 53% |
| Morgan Heights, CO | 360 | $229,700 | 24% |
| Macks Creek, MO | 360 | $51,900 | 72% |
| Grantfork, IL | 360 | $127,000 | 31% |