14.61¢
per kWh, 2025
[ City of Naperville / IL ]
City of Naperville electricity rates in Illinois
NO RATE CASE ON FILE · DATA 2025
change in average rate, 2024→2025
+12.6%
vs 2024
57,225
residential customers
+8.9%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at City of Naperville's average effective residential rate (14.61¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 11.17¢ | — | 52,627 |
| 2016 | 12.21¢ | +9.3% | 52,824 |
| 2017 | 13.05¢ | +6.9% | 53,060 |
| 2018 | 13.55¢ | +3.8% | 53,274 |
| 2019 | 13.21¢ | −2.5% | 54,231 |
| 2020 | 13.42¢ | +1.6% | 54,483 |
| 2021 | 13.08¢ | −2.5% | 54,868 |
| 2022 | 13.01¢ | −0.5% | 55,329 |
| 2023 | 12.95¢ | −0.5% | 55,563 |
| 2024 | 12.98¢ | +0.2% | 56,117 |
| 2025 | 14.61¢ | +12.6% | 57,225 |
How this compares
17.67¢
Illinois average, 2025
−17.3%
City of Naperville vs IL 2025 average
−15.2%
vs US 2025 average
#18
priciest in IL
Serves 2 counties in Illinois: DuPage, Will. 2 ZIP codes.
Questions
Is City of Naperville raising rates in 2026?
No rate case for City of Naperville is on file with the Illinois Commerce Commission in our tracker. Its average residential rate moved +12.6% from 2024 to 2025. We check the commission docket monthly.
What does City of Naperville charge per kWh?
City of Naperville's average effective residential rate was 14.61¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). Illinois's 2025 average was 17.67¢.
How much have City of Naperville rates gone up in five years?
+8.9% between 2020 and 2025, against +51.6% for Illinois as a whole over the latest five-year window.
How many customers does City of Naperville have in Illinois?
57,225 residential customers in 2025, across 2 counties including DuPage, Will, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey; rate-case facts are from the Illinois Commerce Commission docket linked on this page. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)