States › Illinois › October 2025
Illinois electricity prices, October 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In October 2025, residential customers in Illinois paid an average of 18.74¢ per kilowatthour, up 13.7% on the same month a year earlier (16.48¢). The US average for the month was 17.97¢; Illinois was 4.3% above that. It ranked 16th highest among the 50 states and the District of Columbia.
Residential sales were 3,108,450 MWh, up 8.5% on a year earlier, and the average residential bill for the month was $107.98 on 576 kWh. Weather moves monthly sales far more than prices do, so bills swing with the season.
EIA marks this month as preliminary. Preliminary months come from the Form EIA-861M sample and are revised when the annual census is complete.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Monthly figures come from the Form EIA-861M sample and are revised when EIA finalises the year.
Price by sector
| Sector | Oct 2025 | Oct 2024 | Change | US, Oct 2025 |
|---|---|---|---|---|
| Residential | 18.74¢ | 16.48¢ | +13.7% | 17.97¢ |
| Commercial | 13.66¢ | 12.29¢ | +11.1% | 13.49¢ |
| Industrial | 10.31¢ | 9.09¢ | +13.4% | 8.65¢ |
| All sectors | 14.06¢ | 12.37¢ | +13.7% | 13.66¢ |
Sales and customers
| Measure | Oct 2025 | Oct 2024 | Change |
|---|---|---|---|
| Residential sales | 3.1 TWh | 2.9 TWh | +8.5% |
| Sales, all sectors | 10.3 TWh | 10.1 TWh | +2.1% |
| Residential customers | 5,393,849 | 5,357,535 | +0.7% |
| Average residential bill | $107.98 | $88.09 | +22.6% |
| Average residential use, kWh | 576 | 535 | +7.7% |
| US residential price | 17.97¢ | 17.09¢ | +5.1% |
The two years to October 2025
Illinois residentialUS residential
Questions and answers
What was the average electricity price in Illinois in October 2025?
18.74¢ per kilowatthour for residential customers, 13.66¢ for commercial and 10.31¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 16.48¢ in October 2024, a change of +13.7%. Residential sales changed by +8.5% over the same period.
What was the average residential bill that month?
$107.98, on average use of 576 kWh. This is residential revenue divided by residential customers for the month.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861M sales and revenue workbook (state by sector and month), status "Preliminary" for this month, series published through July 2026. Public domain. Price = revenue ÷ sales; bill = residential revenue ÷ residential customers. Utility-level annual figures are on the Illinois page.