State hub · 77 providers

Illinois electricity rates by utility, 2025

Illinois homes paid an average of 17.67¢ per kWh in 2025, the 35th lowest of 51 (50 states and D.C.), and used 716 kWh a month for an average bill of $127. Among full-service utilities, averages ran from 9.99¢ (MidAmerican Energy Co) to 21.54¢ (Shelby Electric Coop, Inc (IL)).

17.67¢Avg residential ¢/kWh (2025)+1.80¢ (+11.3%) vs 2024
$127Avg monthly billU.S.: $151
716 kWhAvg monthly useU.S.: 874 kWh
19.32¢August 2026 (preliminary)August 2025: 18.03¢

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Your monthly use (kWh)

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Rate (¢ per kWh)

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Estimated bill at your rate$127/month

The same usage at each average rate
Rate	¢/kWh	Monthly bill	Yearly
Illinois average, 2025	17.67¢	$127	$1,518
Illinois average, 2025	17.67¢	$127	$1,518
Illinois, August 2026 (preliminary)	19.32¢	$138	$1,660
U.S. average, 2025	17.23¢	$123	$1,481

How Illinois compares

U.S. residential average, 2025: 17.23¢ per kWh and $151 a month. Illinois is 3% above it.
Change since 2024: +1.80¢ (+11.3%) per kWh (U.S.: +0.76¢ (+4.6%)).
August 2026 (preliminary): 19.32¢ per kWh, against 18.03¢ in August 2025 (+1.29¢ (+7.2%)).
Illinois has retail choice for at least some customers: EIA lists 52 energy suppliers and 0 delivery-only utilities with residential customers. A supplier’s price excludes delivery charges, so compare full-service rates with supplier price plus delivery.

Every Illinois provider with residential customers

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Illinois residential electricity providers, 2025 (largest first)
Provider	Type	Customers	¢/kWh	Avg bill	Change vs 2024
Commonwealth Edison Co	Full-service utility	3,020,130	17.71¢	$107	+2.50¢ (+16.4%)
Ameren Illinois Company	Full-service utility	587,659	16.70¢	$148	+1.45¢ (+9.5%)
MC Squared Energy Services, LLC	Energy supplier	263,681	8.14¢	$65	+1.36¢ (+20.0%)
Homefield Energy	Energy supplier	147,108	10.64¢	$64	+1.95¢ (+22.4%)
Reliant Energy Northeast LLC	Energy supplier	142,167	11.99¢	$83	+0.65¢ (+5.7%)
Constellation NewEnergy, Inc	Energy supplier	125,423	9.45¢	$65	−0.61¢ (-6.0%)
MidAmerican Energy Co	Full-service utility	73,481	9.99¢	$74	no change
City of Springfield (IL)	Full-service utility	59,366	13.09¢	$113	+1.14¢ (+9.5%)
City of Naperville (IL)	Full-service utility	57,225	14.61¢	$112	+1.63¢ (+12.5%)
Direct Energy Services	Energy supplier	42,984	11.43¢	$85	−0.45¢ (-3.8%)
SmartEnergy Holdings, LLC	Energy supplier	38,988	12.51¢	$66	+1.66¢ (+15.3%)
Corn Belt Energy Corporation	Full-service utility	34,952	15.59¢	$148	−0.16¢ (-1.0%)
Dynegy Energy Services, LLC	Energy supplier	31,847	7.41¢	$33	+0.71¢ (+10.5%)
Just Energy Solutions Inc.	Energy supplier	31,576	11.61¢	$81	+0.78¢ (+7.2%)
Energy Services Providers, Inc	Energy supplier	30,668	13.28¢	$87	−0.34¢ (-2.5%)
CleanChoice Energy, Inc.	Energy supplier	29,609	12.31¢	$67	+0.51¢ (+4.3%)
IDT Energy, Inc.	Energy supplier	26,086	15.27¢	$86	+2.91¢ (+23.6%)
Southwestern Electric Coop Inc (IL)	Full-service utility	24,414	15.37¢	$178	+1.68¢ (+12.3%)
Interstate Gas Supply, Inc.	Energy supplier	22,865	12.73¢	$78	+1.35¢ (+11.9%)
Southeastern IL Elec Coop, Inc	Full-service utility	22,607	14.80¢	$181	+0.33¢ (+2.3%)
Ambit Energy Holdings, LLC	Energy supplier	20,500	11.38¢	$81	+0.21¢ (+1.9%)
Residents Energy, LLC	Energy supplier	19,768	16.36¢	$94	+2.00¢ (+13.9%)
Norris Electric Coop	Full-service utility	18,163	15.06¢	$177	−0.02¢ (-0.1%)
Jo-Carroll Energy, Inc	Full-service utility	17,278	20.49¢	$149	+0.70¢ (+3.5%)
Vista Energy Marketing, L.P.	Energy supplier	16,763	14.96¢	$92	+1.59¢ (+11.9%)
Tri-County Electric Coop, Inc (IL)	Full-service utility	16,203	16.18¢	$201	+0.13¢ (+0.8%)
Nordic Energy Services, LLC	Energy supplier	15,715	13.97¢	$73	+2.07¢ (+17.3%)
City of St Charles (IL)	Full-service utility	14,901	14.58¢	$104	−0.79¢ (-5.1%)
Egyptian Electric Coop Assn	Full-service utility	13,695	16.21¢	$196	+0.67¢ (+4.3%)
Spark Energy, LP	Energy supplier	12,842	19.60¢	$108	+0.40¢ (+2.1%)
Wayne-White Counties Elec Coop	Full-service utility	11,792	16.39¢	$176	−0.18¢ (-1.1%)
Energy Harbor Corp.	Energy supplier	11,072	9.95¢	$77	+0.98¢ (+10.9%)
Eastern Illinois Elec Coop	Full-service utility	11,001	17.68¢	$228	+0.58¢ (+3.4%)
Palmco Power IL, LLC	Energy supplier	10,383	23.83¢	$116	+6.18¢ (+35.0%)
City of Batavia (IL)	Full-service utility	10,072	14.04¢	$105	−0.04¢ (-0.3%)
Shelby Electric Coop, Inc (IL)	Full-service utility	9,882	21.54¢	$234	+2.91¢ (+15.6%)
Rock Energy Cooperative	Full-service utility	9,421	14.86¢	$113	−0.11¢ (-0.7%)
XOOM Energy Illinois, LLC	Energy supplier	9,040	11.47¢	$76	+0.39¢ (+3.5%)
Menard Electric Coop	Full-service utility	9,036	19.45¢	$199	+1.40¢ (+7.7%)
City of Geneva (IL)	Full-service utility	8,675	11.68¢	$90	+0.64¢ (+5.8%)
Coles-Moultrie Electric Coop	Full-service utility	8,505	17.60¢	$206	+0.45¢ (+2.6%)
Green Mountain Energy Company	Energy supplier	6,670	13.29¢	$74	+0.73¢ (+5.8%)
Inspire Energy Holdings, LLC	Energy supplier	6,330	14.30¢	$90	+1.29¢ (+9.9%)
Rochelle Municipal Utilities (IL)	Full-service utility	5,993	13.12¢	$84	−0.10¢ (-0.7%)
Energy Plus Holdings LLC	Energy supplier	5,466	13.13¢	$78	+0.72¢ (+5.8%)
Clearview Electric Inc.	Energy supplier	4,880	18.93¢	$118	−1.16¢ (-5.8%)
Santanna Energy Services	Energy supplier	4,856	11.51¢	$78	+1.65¢ (+16.7%)
City of Peru (IL)	Full-service utility	4,793	12.48¢	$84	+0.49¢ (+4.1%)
ResCom Energy, LLC	Energy supplier	4,575	8.80¢	$45	+1.00¢ (+12.8%)
Rushmore Energy, LLC	Energy supplier	4,503	11.98¢	$59	+0.47¢ (+4.1%)
Think Energy, LLC	Energy supplier	4,371	8.81¢	$60	−0.01¢ (-0.1%)
Mt Carmel Public Utility Co	Full-service utility	4,337	19.68¢	$177	+0.55¢ (+2.9%)
RPA Energy, Inc.	Energy supplier	3,968	17.97¢	$86	+0.28¢ (+1.6%)
Eligo Energy, LLC	Energy supplier	3,452	13.99¢	$104	+4.83¢ (+52.7%)
Public Power LLC (CT)	Energy supplier	3,377	11.08¢	$82	+0.69¢ (+6.6%)
EcoPlus Power, LLC	Energy supplier	3,027	7.32¢	$37	+0.18¢ (+2.5%)
Viridian Energy PA LLC	Energy supplier	2,824	12.51¢	$82	−0.79¢ (-5.9%)
Stream Energy Illinois, LLC	Energy supplier	2,415	12.89¢	$75	+0.50¢ (+4.1%)
Major Energy Electric Services	Energy supplier	1,993	21.18¢	$105	+7.90¢ (+59.4%)
AEP Energy	Energy supplier	1,794	9.89¢	$76	+3.00¢ (+43.5%)
Great American Power, LLC	Energy supplier	1,528	10.30¢	$60	−0.04¢ (-0.4%)
Alpha Gas and Electric, LLC	Energy supplier	1,353	15.85¢	$77	+0.24¢ (+1.5%)
North American Power and Gas, LLC	Energy supplier	1,336	16.03¢	$95	+0.02¢ (+0.1%)
American Power & Gas	Energy supplier	737	14.41¢	$112	−2.31¢ (-13.8%)
Pure Energy USA, LLC	Energy supplier	699	29.25¢	$126	+1.99¢ (+7.3%)
Retail Energy Solutions, LLC	Energy supplier	678	14.35¢	$80	−0.10¢ (-0.7%)
Atlantic Energy LLC	Energy supplier	604	10.47¢	$60	no change
MPower Energy NJ LLC	Energy supplier	448	18.19¢	$63	−0.38¢ (-2.0%)
Park Power LLC	Energy supplier	348	16.28¢	$87	−1.32¢ (-7.5%)
SFE Energy Illinois, Inc.	Energy supplier	313	11.29¢	$72	+1.07¢ (+10.5%)
Greenlight Energy Inc.	Energy supplier	298	13.12¢	$69	−0.34¢ (-2.5%)
ENGIE Power & Gas LLC	Energy supplier	220	12.81¢	$75	+0.63¢ (+5.1%)
Tomorrow Energy Corp.	Energy supplier	119	24.95¢	$54	−4.90¢ (-16.4%)
South Bay Energy Corp.	Energy supplier	84	15.53¢	$69	+2.69¢ (+21.0%)
Titan Gas LLC	Energy supplier	78	8.16¢	$108	−0.20¢ (-2.4%)
Scenic Rivers Energy Coop	Full-service utility	12	15.07¢	$147	+1.76¢ (+13.2%)
Horizon Power and Light, LLC	Energy supplier	1	23.33¢	$58	n/a

Sources

U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.

Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.