2017 Illinois Power Outage Report

In 2017, the average Illinois customer went without power for about 1.4 hours, the 44th worst of 51 states (US average 7.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer

1.4

vs prior year

▼ 3%

vs 2016

Customer-hours out

8.5M

Peak customers out

46,818

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, 2017

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

CSV JSON

All 102 Illinois counties, 2017

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	Stephenson County	8.8	108K	12,248	5,080	392
2	Jo Daviess County	8.4	30K	3,617	1,887	124
3	Stark County	6.3	20K	3,173	3,004	104
4	De Witt County	6.0	40K	6,665	3,613	114
5	Winnebago County	5.0	606K	120,789	14,324	768
6	Randolph County	4.6	69K	14,970	5,667	267
7	Alexander County	4.4	13K	2,842	882	33
8	LaSalle County	4.3	274K	63,017	9,860	647
9	Macoupin County	4.1	63K	15,453	3,913	256
10	Hardin County	4.0	7,692	1,910	656	159
11	Pope County	4.0	7,371	1,842	1,014	155
12	Carroll County	3.9	29K	7,336	2,980	88
13	Piatt County	3.9	24K	6,148	4,812	147
14	Pulaski County	3.6	12K	3,212	1,082	45
15	Boone County	3.6	76K	20,979	3,971	332
16	Kane County	3.2	405K	127,850	9,017	812
17	Mercer County	3.0	27K	8,972	3,389	315
18	McHenry County	2.7	325K	120,381	10,546	749
19	Gallatin County	2.5	6,205	2,453	2,324	172
20	Lee County	2.4	61K	25,665	2,730	399
21	DuPage County	2.3	716K	313,751	14,475	601
22	Putnam County	2.2	5,605	2,501	736	89
23	Johnson County	2.1	14K	6,500	2,409	254
24	Bureau County	2.0	38K	18,642	1,963	223
25	Henderson County	1.9	6,478	3,381	600	85
26	Whiteside County	1.9	84K	44,026	1,642	413
27	Logan County	1.9	20K	10,899	2,635	226
28	Ogle County	1.8	77K	42,029	2,838	406
29	Fayette County	1.8	13K	7,295	2,507	146
30	Jackson County	1.8	48K	26,616	5,577	274
31	Marshall County	1.6	13K	7,906	3,554	212
32	Will County	1.6	481K	299,468	17,769	617
33	Jefferson County	1.5	35K	22,670	3,003	342
34	Rock Island County	1.5	127K	83,685	6,095	869
35	Menard County	1.5	6,288	4,167	913	65
36	Christian County	1.5	21K	13,660	4,057	198
37	Livingston County	1.5	38K	25,191	2,340	377
38	Morgan County	1.5	24K	16,522	6,227	224
39	Franklin County	1.4	28K	19,260	2,426	482
40	Washington County	1.4	11K	7,318	1,052	258
41	Perry County	1.4	17K	11,975	1,484	217
42	Williamson County	1.4	49K	35,624	4,647	495
43	Saline County	1.4	18K	12,967	3,193	374
44	Cook County	1.3	2.8M	2,162,007	22,361	175
45	Lawrence County	1.2	9,636	7,796	771	137
46	Montgomery County	1.2	12K	10,344	1,098	185
47	Ford County	1.1	6,176	5,462	342	114
48	Clark County	1.1	8,805	7,829	685	70
49	Kankakee County	1.1	92K	85,550	3,819	752
50	DeKalb County	1.1	85K	79,682	4,520	489
51	Hancock County	1.0	9,409	9,010	1,318	160
52	Jersey County	1.0	7,903	7,718	1,515	116
53	Schuyler County	1.0	2,859	2,847	338	30
54	Warren County	0.9	7,809	8,244	878	156
55	Lake County	0.9	549K	581,008	9,288	734
56	Shelby County	0.9	5,329	5,708	1,269	103
57	Edgar County	0.9	8,081	8,690	2,758	92
58	White County	0.9	8,344	8,994	619	86
59	Mason County	0.9	4,424	4,847	690	108
60	Fulton County	0.9	12K	12,940	707	228
61	Douglas County	0.9	7,560	8,333	1,450	124
62	Adams County	0.9	28K	31,760	4,181	291
63	Grundy County	0.8	37K	43,433	1,532	443
64	Effingham County	0.8	12K	14,830	3,792	145
65	St. Clair County	0.8	78K	94,355	4,258	429
66	Massac County	0.8	6,533	8,175	776	38
67	Kendall County	0.8	70K	92,751	5,171	515
68	Edwards County	0.8	3,079	4,061	572	55
69	Vermilion County	0.8	35K	46,373	6,022	423
70	Hamilton County	0.8	3,469	4,619	918	143
71	Knox County	0.7	19K	25,998	837	346
72	Peoria County	0.7	97K	137,518	3,666	494
73	Scott County	0.7	1,511	2,163	1,319	69
74	Pike County	0.7	4,743	6,793	1,142	126
75	McDonough County	0.7	8,759	12,745	606	122
76	Union County	0.7	6,845	10,277	379	86
77	Madison County	0.7	70K	107,855	2,525	448
78	McLean County	0.6	52K	81,860	4,066	440
79	Monroe County	0.6	9,757	15,588	1,114	130
80	Marion County	0.6	9,397	15,234	964	316
81	Richland County	0.6	5,503	9,109	659	129
82	Woodford County	0.6	14K	24,080	2,805	252
83	Tazewell County	0.6	47K	80,878	1,945	436
84	Bond County	0.6	3,323	5,736	830	142
85	Calhoun County	0.5	1,026	1,865	290	57
86	Cass County	0.5	3,029	6,087	336	94
87	Greene County	0.5	2,510	5,200	2,423	88
88	Iroquois County	0.5	4,836	10,038	647	171
89	Henry County	0.5	19K	40,978	2,990	249
90	Macon County	0.4	19K	45,051	1,279	468
91	Clinton County	0.4	4,903	12,465	636	170
92	Crawford County	0.4	3,969	10,220	498	98
93	Champaign County	0.4	34K	90,035	3,663	420
94	Sangamon County	0.4	49K	138,475	4,060	284
95	Brown County	0.3	1,016	3,007	131	55
96	Jasper County	0.3	1,169	4,528	143	25
97	Clay County	0.2	2,063	9,085	313	82
98	Coles County	0.2	4,722	24,455	1,056	153
99	Moultrie County	0.2	1,086	6,492	375	30
100	Cumberland County	0.1	508	4,929	231	20
101	Wabash County	0.0	416	9,760	126	28
102	Wayne County	0.0	52	10,404	9	7

Biggest Illinois outages of 2017

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	Cook County, IL	May 17, 2017 18:45	May 22, 2017 09:00	4d 14h	22,361	240K
2	Cook County, IL	October 5, 2017 12:00	October 17, 2017 07:30	11d 19h	18,135	158K
3	Will County, IL	July 23, 2017 10:30	July 27, 2017 11:30	4d 1h	17,769	174K
4	Cook County, IL	March 8, 2017 12:30	March 12, 2017 06:00	3d 17h	16,053	162K
5	DuPage County, IL	July 21, 2017 21:30	July 25, 2017 11:30	3d 14h	14,475	176K
6	Winnebago County, IL	June 28, 2017 22:30	July 1, 2017 06:00	2d 7h	14,324	196K
7	Cook County, IL	July 17, 2017 00:30	August 7, 2017 06:30	21d 6h	13,339	333K
8	Cook County, IL	July 5, 2017 09:30	July 6, 2017 22:45	1d 13h	12,945	31K
9	Cook County, IL	July 10, 2017 09:00	July 16, 2017 23:30	6d 14h	12,795	115K
10	Winnebago County, IL	July 19, 2017 20:30	July 24, 2017 10:30	4d 14h	11,027	225K
11	McHenry County, IL	November 6, 2017 14:30	November 7, 2017 03:30	13h	10,546	11K
12	LaSalle County, IL	February 28, 2017 22:30	March 5, 2017 00:45	4d 2h	9,860	139K
13	Lake County, IL	July 12, 2017 05:00	July 23, 2017 05:30	11d	9,288	121K
14	Kane County, IL	July 20, 2017 02:00	July 21, 2017 09:30	1d 7h	9,017	43K
15	Lake County, IL	June 28, 2017 07:30	June 30, 2017 07:30	2d	7,982	44K
16	Cook County, IL	June 2, 2017 11:15	June 21, 2017 08:30	18d 21h	7,773	211K
17	Lake County, IL	March 8, 2017 13:00	March 10, 2017 05:00	1d 16h	7,660	39K
18	Lake County, IL	June 14, 2017 17:00	June 16, 2017 05:00	1d 12h	7,544	50K
19	Kane County, IL	July 21, 2017 16:00	July 26, 2017 02:00	4d 10h	7,485	122K
20	LaSalle County, IL	June 14, 2017 22:00	June 16, 2017 20:30	1d 22h	7,332	48K
21	Cook County, IL	March 6, 2017 12:30	March 8, 2017 09:30	1d 21h	6,846	33K
22	Morgan County, IL	November 28, 2017 03:45	November 28, 2017 10:15	6h 30m	6,227	12K
23	Rock Island County, IL	July 21, 2017 02:45	July 23, 2017 02:15	1d 23h	6,095	23K
24	Will County, IL	July 20, 2017 03:00	July 23, 2017 08:30	3d 5h	6,054	42K
25	Vermilion County, IL	March 1, 2017 06:30	March 2, 2017 06:45	1d	6,022	13K

EAGLE-I tracked about n/a of Illinois's electricity customers in 2017; 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 2023 2022 2021 2020 2019 2018 2016 2015

Other states in 2017:FL ME WV NH GA RI VT NC

Part of the 2017 US Power Outage Report.

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