2025 Illinois Power Outage Report
In 2025, the average Illinois customer went without power for about 2.5 hours, the 45th worst of 51 states (US average 5.3 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
2.5
vs prior year
▼ 19%
vs 2024
Customer-hours out
14.6M
Peak customers out
101,815
across the state at once
EAGLE-I coverage
n/a
of IL customers
Counties reporting
102
Illinois year over year
All 102 Illinois counties, 2025
Ranked by average hours without power per customer. Each county links to its annual report.
| # | County | Hrs / customer | Customer-hours | Customers | Peak out | Events |
|---|---|---|---|---|---|---|
| 1 | Mercer County | 82.6 | 741K | 8,972 | 1,938 | 456 |
| 2 | Gallatin County | 52.1 | 128K | 2,453 | 1,954 | 226 |
| 3 | Saline County | 33.2 | 431K | 12,967 | 7,444 | 537 |
| 4 | Pope County | 24.8 | 46K | 1,842 | 749 | 251 |
| 5 | Hardin County | 19.8 | 38K | 1,910 | 665 | 245 |
| 6 | Putnam County | 16.0 | 40K | 2,501 | 1,458 | 234 |
| 7 | Monroe County | 14.7 | 229K | 15,588 | 9,159 | 404 |
| 8 | Williamson County | 14.6 | 522K | 35,624 | 10,894 | 794 |
| 9 | Perry County | 13.0 | 156K | 11,975 | 5,170 | 459 |
| 10 | Johnson County | 12.3 | 80K | 6,500 | 1,424 | 362 |
| 11 | De Witt County | 11.6 | 77K | 6,665 | 2,596 | 304 |
| 12 | Stark County | 11.6 | 37K | 3,173 | 2,090 | 191 |
| 13 | Shelby County | 10.3 | 59K | 5,708 | 1,620 | 393 |
| 14 | Franklin County | 10.1 | 194K | 19,260 | 8,033 | 635 |
| 15 | Henderson County | 10.1 | 34K | 3,381 | 1,915 | 205 |
| 16 | Union County | 10.0 | 103K | 10,277 | 4,735 | 233 |
| 17 | Calhoun County | 9.4 | 18K | 1,865 | 1,114 | 80 |
| 18 | Jo Daviess County | 9.2 | 33K | 3,617 | 1,814 | 277 |
| 19 | Edgar County | 9.2 | 80K | 8,690 | 6,299 | 372 |
| 20 | Jackson County | 8.6 | 230K | 26,616 | 6,017 | 719 |
| 21 | Macoupin County | 8.3 | 128K | 15,453 | 4,693 | 514 |
| 22 | Clinton County | 8.1 | 101K | 12,465 | 5,009 | 590 |
| 23 | Fayette County | 7.7 | 56K | 7,295 | 2,330 | 420 |
| 24 | Alexander County | 7.5 | 21K | 2,842 | 737 | 61 |
| 25 | Madison County | 7.5 | 804K | 107,855 | 18,731 | 768 |
| 26 | Hamilton County | 7.0 | 32K | 4,619 | 486 | 185 |
| 27 | Morgan County | 6.8 | 112K | 16,522 | 11,730 | 370 |
| 28 | Jersey County | 6.7 | 51K | 7,718 | 4,393 | 388 |
| 29 | St. Clair County | 6.6 | 625K | 94,355 | 18,062 | 774 |
| 30 | Boone County | 6.3 | 133K | 20,979 | 7,254 | 421 |
| 31 | Moultrie County | 5.8 | 38K | 6,492 | 2,684 | 256 |
| 32 | Randolph County | 5.7 | 86K | 14,970 | 2,173 | 554 |
| 33 | Piatt County | 5.5 | 34K | 6,148 | 2,717 | 273 |
| 34 | Crawford County | 5.5 | 56K | 10,220 | 2,980 | 421 |
| 35 | Jasper County | 5.4 | 24K | 4,528 | 2,008 | 258 |
| 36 | Clark County | 5.2 | 40K | 7,829 | 2,658 | 299 |
| 37 | Macon County | 5.1 | 230K | 45,051 | 6,405 | 866 |
| 38 | Washington County | 4.8 | 35K | 7,318 | 3,750 | 378 |
| 39 | Lawrence County | 4.6 | 36K | 7,796 | 1,321 | 336 |
| 40 | Marion County | 4.6 | 70K | 15,234 | 2,248 | 666 |
| 41 | Montgomery County | 4.3 | 45K | 10,344 | 1,063 | 453 |
| 42 | Rock Island County | 4.3 | 359K | 83,685 | 18,306 | 936 |
| 43 | Carroll County | 4.1 | 30K | 7,336 | 2,240 | 240 |
| 44 | Iroquois County | 4.1 | 41K | 10,038 | 3,394 | 491 |
| 45 | Pulaski County | 4.0 | 13K | 3,212 | 1,274 | 140 |
| 46 | Bond County | 4.0 | 23K | 5,736 | 1,557 | 352 |
| 47 | Cumberland County | 3.9 | 19K | 4,929 | 703 | 237 |
| 48 | Douglas County | 3.9 | 33K | 8,333 | 3,557 | 325 |
| 49 | Mason County | 3.8 | 19K | 4,847 | 934 | 237 |
| 50 | Christian County | 3.7 | 51K | 13,660 | 2,459 | 427 |
| 51 | Coles County | 3.6 | 88K | 24,455 | 5,432 | 512 |
| 52 | Warren County | 3.5 | 29K | 8,244 | 1,890 | 314 |
| 53 | Kane County | 3.4 | 435K | 127,850 | 18,870 | 1,077 |
| 54 | White County | 3.4 | 30K | 8,994 | 2,181 | 250 |
| 55 | Knox County | 3.3 | 87K | 25,998 | 2,148 | 673 |
| 56 | Hancock County | 3.0 | 27K | 9,010 | 1,353 | 261 |
| 57 | McHenry County | 3.0 | 364K | 120,381 | 13,250 | 990 |
| 58 | Logan County | 3.0 | 32K | 10,899 | 1,222 | 418 |
| 59 | Adams County | 2.8 | 89K | 31,760 | 6,159 | 603 |
| 60 | Marshall County | 2.7 | 22K | 7,906 | 817 | 296 |
| 61 | Henry County | 2.6 | 107K | 40,978 | 2,973 | 607 |
| 62 | Woodford County | 2.6 | 63K | 24,080 | 3,382 | 407 |
| 63 | Effingham County | 2.6 | 38K | 14,830 | 3,249 | 409 |
| 64 | Fulton County | 2.4 | 31K | 12,940 | 2,252 | 368 |
| 65 | Edwards County | 2.4 | 9,589 | 4,061 | 1,115 | 163 |
| 66 | McLean County | 2.4 | 193K | 81,860 | 7,647 | 565 |
| 67 | Stephenson County | 2.3 | 28K | 12,248 | 1,808 | 502 |
| 68 | Wayne County | 2.3 | 24K | 10,404 | 2,233 | 357 |
| 69 | Ford County | 2.2 | 12K | 5,462 | 2,055 | 311 |
| 70 | LaSalle County | 2.2 | 139K | 63,017 | 6,369 | 779 |
| 71 | Menard County | 2.2 | 9,088 | 4,167 | 1,167 | 142 |
| 72 | Jefferson County | 2.2 | 49K | 22,670 | 1,540 | 594 |
| 73 | DuPage County | 2.1 | 670K | 313,751 | 20,530 | 1,062 |
| 74 | Bureau County | 2.1 | 38K | 18,642 | 1,099 | 480 |
| 75 | Richland County | 1.9 | 18K | 9,109 | 1,146 | 306 |
| 76 | Tazewell County | 1.9 | 151K | 80,878 | 4,411 | 696 |
| 77 | Champaign County | 1.9 | 167K | 90,035 | 5,900 | 844 |
| 78 | Will County | 1.8 | 548K | 299,468 | 14,999 | 1,020 |
| 79 | Cass County | 1.8 | 11K | 6,087 | 785 | 154 |
| 80 | McDonough County | 1.8 | 23K | 12,745 | 1,371 | 238 |
| 81 | Peoria County | 1.8 | 244K | 137,518 | 6,353 | 697 |
| 82 | Vermilion County | 1.8 | 81K | 46,373 | 5,833 | 845 |
| 83 | Pike County | 1.7 | 11K | 6,793 | 1,361 | 241 |
| 84 | Winnebago County | 1.6 | 195K | 120,789 | 8,091 | 1,015 |
| 85 | Sangamon County | 1.5 | 203K | 138,475 | 5,205 | 687 |
| 86 | Livingston County | 1.4 | 35K | 25,191 | 3,084 | 528 |
| 87 | Cook County | 1.4 | 3.0M | 2,162,007 | 63,645 | 130 |
| 88 | Scott County | 1.4 | 2,953 | 2,163 | 440 | 71 |
| 89 | Brown County | 1.3 | 3,924 | 3,007 | 383 | 101 |
| 90 | Greene County | 1.2 | 6,452 | 5,200 | 546 | 162 |
| 91 | Grundy County | 1.1 | 47K | 43,433 | 1,309 | 464 |
| 92 | Lee County | 1.0 | 26K | 25,665 | 8,245 | 451 |
| 93 | Kendall County | 1.0 | 94K | 92,751 | 4,737 | 608 |
| 94 | Ogle County | 0.9 | 36K | 42,029 | 2,293 | 486 |
| 95 | Whiteside County | 0.8 | 36K | 44,026 | 3,483 | 521 |
| 96 | Schuyler County | 0.8 | 2,321 | 2,847 | 526 | 101 |
| 97 | Clay County | 0.7 | 6,229 | 9,085 | 816 | 124 |
| 98 | Massac County | 0.6 | 4,774 | 8,175 | 728 | 56 |
| 99 | Kankakee County | 0.6 | 49K | 85,550 | 2,175 | 831 |
| 100 | DeKalb County | 0.6 | 45K | 79,682 | 2,327 | 663 |
| 101 | Wabash County | 0.6 | 5,399 | 9,760 | 336 | 87 |
| 102 | Lake County | 0.5 | 268K | 581,008 | 8,580 | 1,134 |
Biggest Illinois outages of 2025
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Cook County, IL | May 11, 2025 23:00 | May 19, 2025 07:00 | 7d 8h | 63,645 | 776K |
| 2 | Cook County, IL | August 7, 2025 11:45 | August 25, 2025 07:00 | 17d 19h | 44,656 | 744K |
| 3 | Cook County, IL | July 21, 2025 13:30 | August 4, 2025 04:00 | 13d 14h | 29,730 | 325K |
| 4 | DuPage County, IL | August 8, 2025 16:00 | August 9, 2025 06:30 | 14h 30m | 20,530 | 126K |
| 5 | Kane County, IL | August 16, 2025 16:45 | August 20, 2025 01:45 | 3d 9h | 18,870 | 305K |
| 6 | Madison County, IL | May 15, 2025 13:15 | May 21, 2025 04:15 | 5d 15h | 18,731 | 441K |
| 7 | Rock Island County, IL | June 3, 2025 19:15 | June 6, 2025 05:00 | 2d 9h | 18,306 | 183K |
| 8 | St. Clair County, IL | March 14, 2025 14:00 | March 19, 2025 00:45 | 4d 10h | 18,062 | 357K |
| 9 | Will County, IL | August 16, 2025 19:15 | August 20, 2025 09:15 | 3d 14h | 14,999 | 196K |
| 10 | DuPage County, IL | August 16, 2025 21:15 | August 20, 2025 09:00 | 3d 11h | 14,386 | 146K |
| 11 | McHenry County, IL | August 16, 2025 17:30 | August 19, 2025 23:15 | 3d 5h | 13,250 | 231K |
| 12 | Will County, IL | May 15, 2025 19:00 | May 18, 2025 06:15 | 2d 11h | 12,800 | 136K |
| 13 | DuPage County, IL | July 24, 2025 10:45 | July 27, 2025 01:30 | 2d 14h | 12,042 | 130K |
| 14 | Morgan County, IL | June 18, 2025 16:00 | June 20, 2025 16:00 | 2d | 11,730 | 93K |
| 15 | Williamson County, IL | January 5, 2025 13:15 | January 12, 2025 04:30 | 6d 15h | 10,894 | 416K |
| 16 | Cook County, IL | June 2, 2025 11:15 | July 7, 2025 10:30 | 34d 23h | 10,875 | 224K |
| 17 | Monroe County, IL | March 14, 2025 19:15 | March 19, 2025 03:00 | 4d 7h | 9,159 | 178K |
| 18 | Lake County, IL | August 16, 2025 19:45 | August 20, 2025 01:45 | 3d 6h | 8,580 | 80K |
| 19 | Lee County, IL | September 29, 2025 23:30 | September 30, 2025 05:00 | 5h 30m | 8,245 | 3,385 |
| 20 | Winnebago County, IL | March 15, 2025 03:45 | March 18, 2025 13:30 | 3d 9h | 8,091 | 51K |
| 21 | Franklin County, IL | October 8, 2025 20:00 | October 8, 2025 22:00 | 2h | 8,033 | 8,040 |
| 22 | Franklin County, IL | July 7, 2025 00:15 | July 7, 2025 03:15 | 3h | 8,000 | 10K |
| 23 | Madison County, IL | August 12, 2025 12:15 | September 10, 2025 01:15 | 28d 13h | 7,943 | 77K |
| 24 | DuPage County, IL | July 16, 2025 17:30 | July 18, 2025 02:30 | 1d 9h | 7,780 | 28K |
| 25 | McLean County, IL | May 16, 2025 21:30 | May 18, 2025 00:30 | 1d 3h | 7,647 | 37K |
EAGLE-I tracked about n/a of Illinois's electricity customers in 2025; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2025 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.