Illinois electricity prices, May 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In May 2025, residential customers in Illinois paid an average of 18.58¢ per kilowatthour, up 12.5% on the same month a year earlier (16.52¢). The US average for the month was 17.37¢; Illinois was 7.0% above that. It ranked 17th highest among the 50 states and the District of Columbia.
Residential sales were 2,894,912 MWh, down 18.9% on a year earlier, and the average residential bill for the month was $100.50 on 541 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 | May 2025 | May 2024 | Change | US, May 2025 |
|---|---|---|---|---|
| Residential | 18.58¢ | 16.52¢ | +12.5% | 17.37¢ |
| Commercial | 12.39¢ | 12.65¢ | -2.1% | 12.93¢ |
| Industrial | 8.92¢ | 8.26¢ | +8.0% | 8.29¢ |
| All sectors | 13.05¢ | 12.52¢ | +4.2% | 13.13¢ |
Sales and customers
| Measure | May 2025 | May 2024 | Change |
|---|---|---|---|
| Residential sales | 2.9 TWh | 3.6 TWh | -18.9% |
| Sales, all sectors | 9.8 TWh | 10.3 TWh | -5.1% |
| Residential customers | 5,353,144 | 5,387,901 | -0.6% |
| Average residential bill | $100.50 | $109.44 | -8.2% |
| Average residential use, kWh | 541 | 662 | -18.3% |
| US residential price | 17.37¢ | 16.40¢ | +5.9% |
The two years to May 2025
Illinois residentialUS residential
Questions and answers
What was the average electricity price in Illinois in May 2025?
18.58¢ per kilowatthour for residential customers, 12.39¢ for commercial and 8.92¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 16.52¢ in May 2024, a change of +12.5%. Residential sales changed by -18.9% over the same period.
What was the average residential bill that month?
$100.50, on average use of 541 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.