| Index | Mill Creek | Illinois | National |
| Median home price | $64,457 | $308,565 | $326,622 |
| Median rent asked | $0 | $1,374 | $1,444 |
| Avg. people per household | 1.1 | 2.6 | 2.6 |
| Owner occupied households | 100.0% | 66.0% | 63.6% |
| Renter occupied households | 0.0% | 34.0% | 36.4% |

| Population | Home Price | National Avg. | |
| Pulaski, IL | 266 | $77,133 | 76% |
| McClure, IL | 250 | $83,775 | 74% |
| New Grand Chain, IL | 179 | $84,965 | 74% |
| Cypress, IL | 221 | $90,026 | 72% |
| Olive Branch, IL | 630 | $98,808 | 70% |
| Mill Creek, IL | 31 | $64,457 | 80% |
| Population | Home Price | National Avg. | |
| Gibson, IA | 31 | $124,597 | 62% |
| Brimson, MO | 31 | $0 | 100% |
| Little America, WY | 31 | $0 | 100% |
| Thayer, NE | 31 | $0 | 100% |
| Bushong, KS | 31 | $23,321 | 93% |
| Mill Creek, IL | 31 | $64,457 | 80% |