| Index | St. Johns | Illinois | National |
| Median home price | $124,803 | $308,565 | $326,622 |
| Median rent asked | $865 | $1,374 | $1,444 |
| Avg. people per household | 1.7 | 2.6 | 2.6 |
| Owner occupied households | 85.1% | 66.0% | 63.6% |
| Renter occupied households | 14.9% | 34.0% | 36.4% |
| Population | Home Price | National Avg. | |
| Mulkeytown, IL | 132 | $0 | 100% |
| Dowell, IL | 364 | $52,540 | 84% |
| Zeigler, IL | 1,826 | $84,619 | 74% |
| Royalton, IL | 1,140 | $86,777 | 73% |
| Freeman Spur, IL | 276 | $87,659 | 73% |
| St. Johns, IL | 164 | $124,803 | 62% |
| Population | Home Price | National Avg. | |
| Clearmont, MO | 164 | $129,261 | 60% |
| Fowlerton, TX | 164 | $0 | 100% |
| Taunton, MN | 164 | $91,619 | 72% |
| Pilot Mound, IA | 164 | $107,607 | 67% |
| Wilton, MN | 164 | $244,438 | 25% |
| St. Johns, IL | 164 | $124,803 | 62% |