Illinois electricity prices, June 2026
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In June 2026, residential customers in Illinois paid an average of 19.89¢ per kilowatthour, up 8.7% on the same month a year earlier (18.29¢). The US average for the month was 18.34¢; Illinois was 8.5% above that. It ranked 16th highest among the 50 states and the District of Columbia.
Residential sales were 3,891,783 MWh, down 18.4% on a year earlier, and the average residential bill for the month was $142.84 on 718 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 | Jun 2026 | Jun 2025 | Change | US, Jun 2026 |
|---|---|---|---|---|
| Residential | 19.89¢ | 18.29¢ | +8.7% | 18.34¢ |
| Commercial | 14.53¢ | 12.85¢ | +13.1% | 14.19¢ |
| Industrial | 10.65¢ | 9.65¢ | +10.4% | 9.17¢ |
| All sectors | 15.08¢ | 14.01¢ | +7.6% | 14.48¢ |
Sales and customers
| Measure | Jun 2026 | Jun 2025 | Change |
|---|---|---|---|
| Residential sales | 3.9 TWh | 4.8 TWh | -18.4% |
| Sales, all sectors | 11.5 TWh | 12.3 TWh | -6.2% |
| Residential customers | 5,417,992 | 5,395,252 | +0.4% |
| Average residential bill | $142.84 | $161.79 | -11.7% |
| Average residential use, kWh | 718 | 884 | -18.8% |
| US residential price | 18.34¢ | 17.47¢ | +5.0% |
The two years to June 2026
Illinois residentialUS residential
Questions and answers
What was the average electricity price in Illinois in June 2026?
19.89¢ per kilowatthour for residential customers, 14.53¢ for commercial and 10.65¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 18.29¢ in June 2025, a change of +8.7%. Residential sales changed by -18.4% over the same period.
What was the average residential bill that month?
$142.84, on average use of 718 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.