| Index | O'Fallon | Missouri | National |
| Median home price | $235,200 | $141,200 | $184,700 |
| Median rent asked | $1,153 | $759 | $949 |
| Avg. people per household | 2.6 | 2.4 | 2.6 |
| Owner occupied households | 82.7% | 66.8% | 63.6% |
| Renter occupied households | 17.3% | 33.2% | 36.4% |
| Population | Home Price | National Avg. | |
| Champ, MO | 3 | $0 | 100% |
| Defiance, MO | 68 | $0 | 100% |
| Fountain N' Lakes, MO | 232 | $35,000 | 81% |
| Brussels, IL | 113 | $92,500 | 50% |
| Old Monroe, MO | 173 | $125,700 | 32% |
| O'Fallon, MO | 88,132 | $235,200 | 27% |
| Population | Home Price | National Avg. | |
| Palm Coast, FL | 88,222 | $226,100 | 22% |
| Champaign, IL | 88,288 | $167,000 | 10% |
| Newton, MA | 88,322 | $952,100 | 415% |
| Reading, PA | 88,333 | $79,500 | 57% |
| Conroe, TX | 88,369 | $208,100 | 13% |
| O'Fallon, MO | 88,132 | $235,200 | 27% |
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