2023 Illinois Power Outage Report

In 2023, the average Illinois customer went without power for about 4.0 hours, the 26th worst of 51 states (US average 6.7 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer

4.0

vs prior year

▲ 149%

vs 2022

Customer-hours out

23.9M

Peak customers out

233,274

across the state at once

EAGLE-I coverage

n/a

of IL customers

Counties reporting

102

Illinois year over year

Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2023

Customer-hours without power across Illinois; July was the worst.

CSV JSON

All 102 Illinois counties, 2023

Ranked by average hours without power per customer. Each county links to its annual report.

CSV JSON

#	County	Hrs / customer	Customer-hours	Customers	Peak out	Events
1	Edgar County	55.8	485K	8,690	8,690	327
2	De Witt County	39.1	260K	6,665	5,542	319
3	Washington County	33.5	245K	7,318	4,804	451
4	Vermilion County	33.0	1.5M	46,373	32,688	803
5	Douglas County	31.3	261K	8,333	8,333	289
6	Monroe County	29.2	456K	15,588	7,417	462
7	Christian County	27.7	378K	13,660	9,971	496
8	Shelby County	27.0	154K	5,708	4,823	340
9	Jo Daviess County	26.0	94K	3,617	3,239	386
10	Hancock County	24.8	224K	9,010	5,674	248
11	Macon County	22.5	1.0M	45,051	19,996	775
12	Clark County	22.2	174K	7,829	4,592	305
13	Morgan County	22.2	367K	16,522	7,265	387
14	Logan County	21.3	232K	10,899	5,432	446
15	Sangamon County	19.7	2.7M	138,475	48,681	708
16	Stephenson County	19.7	241K	12,248	6,972	496
17	Henderson County	19.5	66K	3,381	2,579	181
18	Stark County	19.2	61K	3,173	1,503	192
19	Crawford County	18.7	191K	10,220	8,583	429
20	Brown County	17.5	52K	3,007	1,844	80
21	Piatt County	16.3	100K	6,148	6,148	276
22	Putnam County	16.2	40K	2,501	2,501	185
23	Lee County	15.1	387K	25,665	9,505	469
24	McDonough County	13.9	177K	12,745	4,645	221
25	Fayette County	13.1	95K	7,295	5,822	493
26	Warren County	12.7	105K	8,244	5,611	279
27	Bond County	12.5	72K	5,736	3,252	405
28	Champaign County	12.4	1.1M	90,035	30,548	879
29	St. Clair County	12.2	1.2M	94,355	13,156	778
30	Marion County	11.7	178K	15,234	7,668	675
31	Perry County	9.5	114K	11,975	6,266	435
32	Bureau County	9.4	175K	18,642	5,850	454
33	Madison County	9.2	987K	107,855	18,539	812
34	Lawrence County	9.0	70K	7,796	5,212	324
35	Winnebago County	8.3	1.0M	120,789	23,635	1,116
36	Cumberland County	8.2	40K	4,929	2,378	189
37	McHenry County	7.9	951K	120,381	36,109	1,024
38	Knox County	7.6	198K	25,998	4,608	657
39	Fulton County	7.6	99K	12,940	6,017	450
40	Marshall County	7.3	58K	7,906	2,959	358
41	Jasper County	7.2	33K	4,528	2,356	258
42	Boone County	6.5	136K	20,979	2,892	437
43	Macoupin County	6.3	97K	15,453	2,150	524
44	Pike County	6.1	41K	6,793	1,783	234
45	Scott County	6.0	13K	2,163	774	63
46	Randolph County	6.0	89K	14,970	4,304	462
47	Coles County	5.8	142K	24,455	9,390	438
48	Rock Island County	5.2	437K	83,685	18,519	978
49	Jefferson County	5.0	113K	22,670	3,004	644
50	Saline County	4.9	64K	12,967	3,663	471
51	Mercer County	4.8	43K	8,972	1,842	490
52	Kane County	4.7	601K	127,850	19,833	1,094
53	Carroll County	4.7	34K	7,336	3,336	277
54	Calhoun County	4.6	8,646	1,865	890	101
55	Montgomery County	4.5	46K	10,344	3,844	424
56	Jackson County	4.4	117K	26,616	5,014	642
57	Clinton County	4.4	55K	12,465	999	609
58	Franklin County	4.1	79K	19,260	6,051	554
59	Woodford County	3.7	89K	24,080	4,105	450
60	Gallatin County	3.6	8,722	2,453	2,036	175
61	Henry County	3.4	140K	40,978	5,312	698
62	Greene County	3.1	16K	5,200	2,013	121
63	Johnson County	3.1	20K	6,500	1,265	248
64	LaSalle County	3.0	192K	63,017	5,471	823
65	Pulaski County	3.0	9,490	3,212	1,229	119
66	Tazewell County	2.9	237K	80,878	8,119	747
67	Jersey County	2.9	22K	7,718	1,311	214
68	Peoria County	2.8	386K	137,518	6,042	695
69	Adams County	2.8	88K	31,760	5,135	552
70	Effingham County	2.8	41K	14,830	3,762	474
71	Iroquois County	2.7	27K	10,038	1,610	474
72	Menard County	2.6	11K	4,167	2,047	156
73	Schuyler County	2.6	7,473	2,847	2,137	92
74	Ford County	2.6	14K	5,462	784	237
75	Ogle County	2.5	104K	42,029	2,881	461
76	McLean County	2.3	185K	81,860	3,913	821
77	Richland County	2.1	19K	9,109	1,331	360
78	Mason County	2.1	10K	4,847	1,475	250
79	Cass County	2.1	13K	6,087	4,486	174
80	Alexander County	2.1	5,926	2,842	747	57
81	Edwards County	2.0	8,267	4,061	886	243
82	Union County	2.0	20K	10,277	3,049	215
83	White County	2.0	18K	8,994	1,487	222
84	Williamson County	2.0	70K	35,624	4,280	692
85	Moultrie County	1.9	13K	6,492	756	79
86	Whiteside County	1.8	80K	44,026	2,744	484
87	Hardin County	1.7	3,169	1,910	424	97
88	Hamilton County	1.5	7,059	4,619	2,205	173
89	Wayne County	1.5	15K	10,404	1,034	268
90	Livingston County	1.3	33K	25,191	2,478	473
91	Kankakee County	1.3	108K	85,550	5,021	811
92	DeKalb County	1.2	97K	79,682	2,900	637
93	DuPage County	1.2	376K	313,751	14,334	1,098
94	Grundy County	1.1	48K	43,433	4,845	481
95	Cook County	1.0	2.2M	2,162,007	23,437	253
96	Pope County	1.0	1,789	1,842	141	135
97	Will County	0.8	249K	299,468	8,303	1,030
98	Kendall County	0.8	71K	92,751	3,330	598
99	Clay County	0.7	6,491	9,085	860	141
100	Lake County	0.6	368K	581,008	14,719	1,164
101	Wabash County	0.4	3,522	9,760	237	82
102	Massac County	0.3	2,713	8,175	718	70

Biggest Illinois outages of 2023

Up to 25 county outage episodes with the most customers out at once.

CSV JSON

#	County	Started (UTC)	Ended (UTC)	Duration	Peak out	Customer-hours
1	Sangamon County, IL	June 29, 2023 17:15	July 11, 2023 10:00	11d 16h	48,681	2.6M
2	McHenry County, IL	February 22, 2023 18:00	February 26, 2023 06:15	3d 12h	36,109	849K
3	Vermilion County, IL	June 29, 2023 18:15	July 7, 2023 18:00	7d 23h	32,688	1.4M
4	Champaign County, IL	June 29, 2023 13:00	July 7, 2023 01:15	7d 12h	30,548	952K
5	Winnebago County, IL	February 22, 2023 19:15	February 26, 2023 05:15	3d 10h	23,635	572K
6	Cook County, IL	February 22, 2023 13:45	February 27, 2023 04:30	4d 14h	23,437	356K
7	Cook County, IL	July 17, 2023 11:45	August 10, 2023 10:30	23d 22h	21,521	268K
8	Macon County, IL	June 29, 2023 14:15	July 5, 2023 04:15	5d 14h	19,996	851K
9	Kane County, IL	February 22, 2023 18:30	February 26, 2023 06:00	3d 11h	19,833	437K
10	Madison County, IL	July 1, 2023 00:15	July 10, 2023 11:45	9d 11h	18,539	566K
11	Rock Island County, IL	April 4, 2023 13:00	April 12, 2023 16:00	8d 3h	18,519	246K
12	Cook County, IL	July 10, 2023 09:45	July 17, 2023 07:45	6d 22h	18,010	209K
13	Cook County, IL	March 30, 2023 08:45	April 3, 2023 02:15	3d 17h	17,746	83K
14	Cook County, IL	September 11, 2023 08:15	September 17, 2023 19:15	6d 11h	17,324	49K
15	Lake County, IL	February 22, 2023 19:00	February 25, 2023 21:30	3d 2h	14,719	207K
16	Madison County, IL	July 29, 2023 17:15	July 31, 2023 23:45	2d 6h	14,623	107K
17	DuPage County, IL	July 14, 2023 03:30	July 17, 2023 00:45	2d 21h	14,334	108K
18	Winnebago County, IL	April 1, 2023 00:45	April 4, 2023 03:30	3d 2h	14,187	234K
19	St. Clair County, IL	June 30, 2023 23:45	July 8, 2023 03:30	7d 3h	13,156	644K
20	Cook County, IL	June 29, 2023 10:15	July 7, 2023 10:15	8d	10,194	138K
21	Christian County, IL	June 29, 2023 17:45	July 3, 2023 23:45	4d 6h	9,971	321K
22	Lee County, IL	July 28, 2023 08:00	July 31, 2023 02:30	2d 18h	9,505	82K
23	Coles County, IL	June 29, 2023 18:30	July 4, 2023 16:00	4d 21h	9,390	124K
24	Rock Island County, IL	June 25, 2023 03:45	June 26, 2023 18:30	1d 14h	9,336	18K
25	Lee County, IL	April 1, 2023 00:30	April 4, 2023 02:45	3d 2h	8,782	278K

EAGLE-I tracked about n/a of Illinois's electricity customers in 2023; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.

Illinois by year:2025 2024 2022 2021 2020 2019 2018 2017 2016 2015

Other states in 2023:ME MI KY OK AR WV LA MS

Part of the 2023 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.