States › Illinois › August 2025
Illinois electricity prices, August 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In August 2025, residential customers in Illinois paid an average of 18.06¢ per kilowatthour, up 15.6% on the same month a year earlier (15.62¢). The US average for the month was 17.61¢; Illinois was about the same as that. It ranked 17th highest among the 50 states and the District of Columbia.
Residential sales were 4,864,085 MWh, little changed on a year earlier, and the average residential bill for the month was $163.36 on 905 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 | Aug 2025 | Aug 2024 | Change | US, Aug 2025 |
|---|---|---|---|---|
| Residential | 18.06¢ | 15.62¢ | +15.6% | 17.61¢ |
| Commercial | 13.94¢ | 12.05¢ | +15.7% | 13.93¢ |
| Industrial | 10.80¢ | 9.01¢ | +19.9% | 9.08¢ |
| All sectors | 14.55¢ | 12.55¢ | +15.9% | 14.22¢ |
Sales and customers
| Measure | Aug 2025 | Aug 2024 | Change |
|---|---|---|---|
| Residential sales | 4.9 TWh | 4.9 TWh | -0.7% |
| Sales, all sectors | 13 TWh | 12.8 TWh | +1.4% |
| Residential customers | 5,377,262 | 5,357,441 | +0.4% |
| Average residential bill | $163.36 | $142.84 | +14.4% |
| Average residential use, kWh | 905 | 914 | -1.0% |
| US residential price | 17.61¢ | 16.60¢ | +6.1% |
The two years to August 2025
Illinois residentialUS residential
Questions and answers
What was the average electricity price in Illinois in August 2025?
18.06¢ per kilowatthour for residential customers, 13.94¢ for commercial and 10.80¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 15.62¢ in August 2024, a change of +15.6%. Residential sales changed by -0.7% over the same period.
What was the average residential bill that month?
$163.36, on average use of 905 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.