| Index | Petersburg | Illinois | National |
| Median home price | $222,373 | $308,565 | $326,622 |
| Median rent asked | $1,001 | $1,374 | $1,444 |
| Avg. people per household | 2.2 | 2.6 | 2.6 |
| Owner occupied households | 62.4% | 66.0% | 63.6% |
| Renter occupied households | 37.6% | 34.0% | 36.4% |

| Population | Home Price | National Avg. | |
| Middletown, IL | 216 | $108,742 | 67% |
| Kilbourne, IL | 361 | $109,937 | 66% |
| Grandview, IL | 1,420 | $118,749 | 64% |
| Greenview, IL | 943 | $124,384 | 62% |
| Clear Lake, IL | 399 | $124,789 | 62% |
| Petersburg, IL | 2,626 | $222,373 | 32% |
| Population | Home Price | National Avg. | |
| Cave City, KY | 2,626 | $139,255 | 57% |
| Yorkville, NY | 2,626 | $176,385 | 46% |
| Apalachicola, FL | 2,627 | $340,329 | 4% |
| Lakeview Estates, GA | 2,627 | $56,125 | 83% |
| Shelby, MI | 2,627 | $169,332 | 48% |
| Petersburg, IL | 2,626 | $222,373 | 32% |