City of Naperville: average rate and electric bill (2025)
City of Naperville (municipal utility, Illinois) served 57,225 homes in 2025. The average customer used 769 kWh a month and paid $112, an average price of 14.6¢ per kWh including fixed charges, riders and taxes. That is 17% below the Illinois average of 17.7¢.
14.6¢average price per kWh
$112average monthly bill
769kWh per month, average home
9 of 27utilities in Illinois, cheapest first
What a bill costs at City of Naperville's average price
| Monthly usage | Estimated bill |
|---|---|
| 500 kWh | $73 |
| 1,000 kWh | $146 |
| 1,500 kWh | $219 |
The average price spreads fixed monthly charges over all kWh. At low usage your price per kWh is higher, at high usage lower. Your current tariff can differ from the 2025 average, especially after a rate case.
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Compare with other utilities in Illinois
| Name | ¢/kWh | Avg. bill |
|---|---|---|
| MidAmerican Energy Co | 10.0 | $74 |
| City of Springfield | 13.1 | $113 |
| City of Naperville | 14.6 | $112 |
| Southeastern IL Elec Coop, Inc | 14.8 | $181 |
| Southwestern Electric Coop Inc | 15.4 | $178 |
| Corn Belt Energy Corporation | 15.6 | $148 |
| Ameren Illinois Company | 16.7 | $148 |
| Sunrun Inc. | 17.0 | $112 |
| Commonwealth Edison Co | 17.7 | $107 |
Source: U.S. Energy Information Administration, Form EIA-861 annual data 2025 (released October 2026), utility ID 13208. Average price = residential revenue ÷ residential kWh sold; average bill = revenue ÷ customers ÷ 12.