| Index | Rock City | Illinois | National |
| Median home price | $189,406 | $308,565 | $326,622 |
| Median rent asked | $1,226 | $1,374 | $1,444 |
| Avg. people per household | 2.5 | 2.6 | 2.6 |
| Owner occupied households | 77.5% | 66.0% | 63.6% |
| Renter occupied households | 22.5% | 34.0% | 36.4% |

| Population | Home Price | National Avg. | |
| Freeport, IL | 24,837 | $124,618 | 62% |
| Ridott, IL | 174 | $154,098 | 53% |
| Dakota, IL | 741 | $157,578 | 52% |
| German Valley, IL | 579 | $168,038 | 49% |
| Cedarville, IL | 644 | $169,353 | 48% |
| Rock City, IL | 363 | $189,406 | 42% |
| Population | Home Price | National Avg. | |
| Spottsville, KY | 363 | $167,394 | 49% |
| Bethania, NC | 363 | $451,394 | 38% |
| St. Martin, MN | 363 | $271,481 | 17% |
| Flemington, WV | 363 | $140,255 | 57% |
| Barryton, MI | 363 | $107,982 | 67% |
| Rock City, IL | 363 | $189,406 | 42% |