| Index | Lake Petersburg | Illinois | National |
| Median home price | $213,100 | $175,700 | $175,700 |
| Median rent asked | $0 | $903 | $920 |
| Avg. people per household | 1.9 | 2.6 | 2.6 |
| Owner occupied households | 97.7% | 66.9% | 64.4% |
| Renter occupied households | 2.3% | 33.1% | 35.6% |
| Index | Lake Petersburg | Illinois | National |
| Zillow home value index | n/a | $168,800 | $196,500 |
| Year over year appreciation rate | n/a | 5.76% | 6.79% |
| 5 year average appreciation rate | n/a | 3.66% | 5.28% |
| 10 year average appreciation rate | n/a | -1.85% | 0.01% |
| City, State | Population | Home Price | National Avg. |
| Kilbourne, IL | 278 | $47,900 | 73% |
| Middletown, IL | 296 | $55,800 | 68% |
| Oakford, IL | 280 | $58,300 | 67% |
| Grandview, IL | 1,351 | $72,600 | 59% |
| Tallula, IL | 477 | $73,600 | 58% |
| Lake Petersburg, IL | 667 | $213,100 | 21% |
| City, State | Population | Home Price | National Avg. |
| Como, TX | 667 | $46,700 | 73% |
| Prospect, LA | 667 | $177,600 | 1% |
| Juliaetta, ID | 667 | $120,100 | 32% |
| Green Acres, ND | 667 | $0 | 100% |
| Howard, KS | 667 | $43,500 | 75% |
| Lake Petersburg, IL | 667 | $213,100 | 21% |