massoutage

County annual report · FIPS 17107

2025 Logan County, IL Power Outage Report

In 2025, customers in Logan County, IL went without power for an average of 3.0 hours, a total of 32K customer-hours (Illinois average 2.5 hours). That ranks 58th worst of 102 Illinois counties and 2066th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
3.0
10,899 customers
Customer-hours out
32K
Peak customers out
1,222
Outages ≥1,000 out
1
0 of 10,000+ · 418 total
Longest outage
4d 16h
began May 16, 2025
Rank in state
58th/102
2066th of 3,000 US

Compared with IL, the US and 2024

Logan County, IL average hours without power per customer compared with state and national averages, 2025Logan County 3.0 hours, Illinois average 2.5 hours, US average 5.9 hours, Logan County, 2024 4.8 hoursLogan CountyLogan County3.0hIllinois averageIllinois average2.5hUS averageUS average5.9hLogan County, 2024Logan County, 20244.8h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Logan County, IL customer-hours without power by month, 2025Jan 1,478, Feb 495, Mar 3,227, Apr 4,294, May 3,652, Jun 5,944, Jul 6,642, Aug 1,366, Sep 531, Oct 1,712, Nov 1,308, Dec 1,70402k4k6k8k1,478Jan495Feb3,227Mar4,294Apr3,652May5,944Jun6,642Jul1,366Aug531Sep1,712Oct1,308Nov1,704Dec
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Customer-hours; July was the worst month.

Logan County year over year

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Logan County, IL: average hours without power per customer by year2015: 4.4h; 2016: 6.6h; 2017: 1.9h; 2018: 2.3h, coverage 92%; 2019: 5.3h, coverage 99%; 2020: 7.9h, coverage 94%; 2021: 5.6h, coverage 98%; 2022: 5.6h, coverage 98%; 2023: 21.3h; 2024: 4.8h; 2025: 3.0h01020300%50%100%4.4h20156.6h20161.9h20172.3h20185.3h20197.9h20205.6h20215.6h202221.3h20234.8h20243.0h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Illinois customers tracked each year.

Biggest outages in Logan County, 2025

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 11, 2025 13:30June 11, 2025 20:006h 30m1,2221,339
2April 2, 2025 03:15April 3, 2025 15:151d 12h9353,595
3June 18, 2025 17:00June 19, 2025 04:3011h 30m8353,369
4July 28, 2025 21:15July 29, 2025 04:157h7022,287
5November 16, 2025 13:15November 16, 2025 14:151h569569
6May 16, 2025 00:00May 20, 2025 16:454d 16h4633,249
7April 28, 2025 17:45April 28, 2025 19:151h 30m430220
8June 6, 2025 15:00June 6, 2025 15:1515m412103
9March 14, 2025 20:45March 15, 2025 13:4517h3841,198
10March 19, 2025 20:30March 20, 2025 06:159h 45m3601,430

Outage episodes by size in 2025: 27 reached 100+ customers, 1 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Logan County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20243.7 hrs1.132.0 hrs0.91
Corn Belt Energy Corporation20245.2 hrs5.212.5 hrs4.68
Menard Electric Coop20242.8 hrs1.491.9 hrs1.27
Ameren-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Illinois's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 10,899 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Logan County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Logan County, IL annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/illinois/logan-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON