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Last updated: May 2026 · EIA-861 residential rates
The average residential electricity rate in Illinois is 23.85¢/kWh, with a typical monthly bill of $179 on 750 kWh of usage. That's 29% above the national average of 18.44¢/kWh.
Cold winters (mostly gas heat), hot humid summers. Illinois is deregulated, and municipal aggregation programs cover most of the state outside Chicago.
| Utility | Customers | Avg rate |
|---|---|---|
| ComEd (Chicago + Northern IL) | 4M | 16.8¢/kWh |
| Ameren Illinois (Central + Southern) | 1.2M | 16.2¢/kWh |
| MidAmerican Energy | 100K | 14.5¢/kWh |
| City | Usage | Monthly bill |
|---|---|---|
| Chicago | 700 kWh/mo | $118/mo |
| Aurora | 760 kWh/mo | $128/mo |
| Naperville | 820 kWh/mo | $138/mo |
| Springfield | 780 kWh/mo | $126/mo |
| Peoria | 760 kWh/mo | $123/mo |
| Rockford | 740 kWh/mo | $124/mo |
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