| Index | Irwin | Illinois | National |
| Median home price | $268,626 | $308,565 | $326,622 |
| Median rent asked | $0 | $1,374 | $1,444 |
| Avg. people per household | 1.9 | 2.6 | 2.6 |
| Owner occupied households | 90.5% | 66.0% | 63.6% |
| Renter occupied households | 9.5% | 34.0% | 36.4% |

| Population | Home Price | National Avg. | |
| Kempton, IL | 328 | $93,410 | 71% |
| Union Hill, IL | 71 | $122,272 | 63% |
| Cabery, IL | 268 | $137,822 | 58% |
| Cullom, IL | 514 | $139,697 | 57% |
| Papineau, IL | 133 | $152,041 | 53% |
| Irwin, IL | 41 | $268,626 | 18% |
| Population | Home Price | National Avg. | |
| Levelock, AK | 41 | $107,119 | 67% |
| River Sioux, IA | 41 | $100,263 | 69% |
| Dailey, WV | 41 | $0 | 100% |
| California Hot Springs, CA | 41 | $0 | 100% |
| California Junction, IA | 41 | $0 | 100% |
| Irwin, IL | 41 | $268,626 | 18% |