Illinois Electricity Price History

Dataset last updated May 28, 2026 (UTC). The U.S. Energy Information Administration (EIA) publishes monthly state data with a reporting lag, so the series above reflects March 2026 activity. · Methodology

This monthly series shows the state-level average residential electricity price in cents per kWh and is intended for trend context.

Trend: Up from 2001-01 (7.53¢/kWh) to 2026-03 (18.86¢/kWh)

Source: U.S. Energy Information Administration (EIA).

Showing 303 of 303 months. Last 24 months

Month	Avg rate (¢/kWh)
2001-01	7.53
2001-02	8.25
2001-03	8.33
2001-04	8.81
2001-05	9.20
2001-06	9.43
2001-07	9.42
2001-08	9.35
2001-09	9.21
2001-10	8.78
2001-11	8.05
2001-12	7.93
2002-01	7.53
2002-02	8.02
2002-03	8.03
2002-04	8.31
2002-05	8.78
2002-06	8.93
2002-07	8.95
2002-08	8.89
2002-09	8.92
2002-10	8.61
2002-11	7.83
2002-12	7.46
2003-01	7.40
2003-02	7.60
2003-03	7.88
2003-04	8.54
2003-05	8.83
2003-06	9.23
2003-07	9.06
2003-08	8.97
2003-09	8.85
2003-10	8.67
2003-11	8.12
2003-12	7.56
2004-01	7.37
2004-02	7.58
2004-03	8.18
2004-04	8.46
2004-05	8.76
2004-06	8.98
2004-07	9.13
2004-08	9.05
2004-09	8.99
2004-10	8.52
2004-11	8.03
2004-12	7.58
2005-01	7.27
2005-02	7.83
2005-03	7.96
2005-04	8.46
2005-05	8.74
2005-06	8.88
2005-07	8.97
2005-08	8.87
2005-09	8.91
2005-10	8.54
2005-11	8.04
2005-12	7.38
2006-01	7.43
2006-02	7.93
2006-03	7.91
2006-04	8.46
2006-05	8.92
2006-06	8.88
2006-07	9.15
2006-08	8.92
2006-09	9.21
2006-10	8.73
2006-11	7.78
2006-12	7.55
2007-01	9.63
2007-02	9.62
2007-03	9.81
2007-04	10.42
2007-05	10.17
2007-06	10.58
2007-07	9.89
2007-08	10.29
2007-09	10.31
2007-10	10.74
2007-11	10.58
2007-12	9.71
2008-01	9.56
2008-02	9.88
2008-03	10.43
2008-04	11.02
2008-05	11.60
2008-06	11.57
2008-07	11.41
2008-08	11.24
2008-09	11.63
2008-10	12.05
2008-11	12.24
2008-12	10.82
2009-01	10.79
2009-02	11.47
2009-03	11.74
2009-04	11.97
2009-05	12.16
2009-06	11.40
2009-07	10.97
2009-08	11.15
2009-09	11.48
2009-10	11.42
2009-11	11.11
2009-12	10.30
2010-01	9.94
2010-02	10.56
2010-03	10.98
2010-04	11.61
2010-05	12.05
2010-06	12.70
2010-07	12.13
2010-08	11.96
2010-09	11.75
2010-10	12.22
2010-11	11.98
2010-12	10.64
2011-01	10.31
2011-02	11.19
2011-03	11.90
2011-04	11.88
2011-05	12.37
2011-06	12.06
2011-07	11.91
2011-08	11.55
2011-09	12.76
2011-10	12.85
2011-11	12.38
2011-12	11.14
2012-01	11.21
2012-02	11.45
2012-03	11.97
2012-04	12.45
2012-05	12.73
2012-06	11.24
2012-07	10.81
2012-08	10.78
2012-09	11.36
2012-10	11.91
2012-11	11.35
2012-12	10.62
2013-01	10.42
2013-02	10.85
2013-03	10.46
2013-04	10.92
2013-05	11.89
2013-06	10.57
2013-07	10.44
2013-08	10.73
2013-09	10.09
2013-10	11.22
2013-11	10.61
2013-12	9.84
2014-01	10.34
2014-02	10.94
2014-03	11.27
2014-04	12.31
2014-05	12.48
2014-06	12.15
2014-07	12.09
2014-08	12.41
2014-09	12.05
2014-10	13.52
2014-11	12.62
2014-12	11.78
2015-01	11.45
2015-02	11.88
2015-03	11.94
2015-04	13.31
2015-05	13.26
2015-06	12.58
2015-07	12.56
2015-08	12.52
2015-09	12.80
2015-10	13.58
2015-11	13.27
2015-12	11.82
2016-01	11.77
2016-02	12.27
2016-03	12.88
2016-04	13.09
2016-05	13.61
2016-06	12.54
2016-07	12.35
2016-08	12.24
2016-09	12.53
2016-10	13.03
2016-11	13.14
2016-12	11.95
2017-01	11.55
2017-02	12.51
2017-03	14.02
2017-04	13.59
2017-05	14.09
2017-06	13.14
2017-07	12.29
2017-08	12.83
2017-09	13.09
2017-10	13.12
2017-11	13.67
2017-12	12.58
2018-01	12.74
2018-02	12.48
2018-03	12.93
2018-04	13.27
2018-05	13.39
2018-06	12.75
2018-07	11.96
2018-08	12.52
2018-09	12.43
2018-10	13.49
2018-11	13.46
2018-12	12.53
2019-01	12.38
2019-02	12.67
2019-03	12.99
2019-04	14.32
2019-05	14.32
2019-06	13.42
2019-07	12.14
2019-08	12.71
2019-09	12.69
2019-10	13.86
2019-11	13.51
2019-12	12.79
2020-01	12.84
2020-02	13.01
2020-03	13.41
2020-04	13.96
2020-05	14.29
2020-06	12.90
2020-07	12.18
2020-08	12.56
2020-09	12.68
2020-10	13.99
2020-11	13.64
2020-12	12.52
2021-01	12.23
2021-02	12.19
2021-03	13.82
2021-04	13.98
2021-05	14.18
2021-06	12.83
2021-07	12.68
2021-08	12.85
2021-09	13.02
2021-10	13.98
2021-11	14.33
2021-12	13.40
2022-01	12.92
2022-02	13.83
2022-03	14.57
2022-04	14.98
2022-05	15.02
2022-06	16.58
2022-07	16.36
2022-08	16.73
2022-09	16.81
2022-10	17.02
2022-11	17.04
2022-12	15.98
2023-01	15.99
2023-02	17.03
2023-03	17.38
2023-04	17.82
2023-05	17.86
2023-06	15.08
2023-07	14.81
2023-08	13.74
2023-09	14.70
2023-10	15.75
2023-11	15.65
2023-12	14.84
2024-01	14.77
2024-02	15.60
2024-03	15.95
2024-04	16.51
2024-05	16.52
2024-06	16.01
2024-07	15.19
2024-08	15.62
2024-09	15.80
2024-10	16.48
2024-11	17.06
2024-12	15.96
2025-01	15.78
2025-02	16.47
2025-03	17.55
2025-04	18.28
2025-05	18.58
2025-06	18.29
2025-07	17.22
2025-08	18.06
2025-09	19.05
2025-10	18.74
2025-11	18.31
2025-12	17.07
2026-01	16.36
2026-02	17.83
2026-03	18.86