O'Fallon vs St. Charles: Cost of Living Compared (2026)
Updated Jun 2026 (3 months ago) · Source: U.S. Census Bureau, U.S. Bureau of Economic Analysis, U.S. Energy Information Administration
| Metric | O'Fallon | St. Charles | Difference |
|---|---|---|---|
| Rent (1BR) | $1,326 | $1,162 | +13% |
| Median household income | $110,443 | $85,937 | +25% |
| Grocery cost index | 96.3 | 96.3 | — |
| Utilities (monthly) | $146 | $146 | — |
Salary equivalent between cities
Equivalent salary needed
$88,089
- Difference
- $8,089