massoutage

County annual report · FIPS 17065

2024 Hamilton County, IL Power Outage Report

In 2024, customers in Hamilton County, IL went without power for an average of 2.4 hours, a total of 11K customer-hours (Illinois average 3.0 hours). That ranks 74th worst of 102 Illinois counties and 2298th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
2.4
4,619 customers
Customer-hours out
11K
Peak customers out
1,668
Outages ≥1,000 out
2
0 of 10,000+ · 136 total
Longest outage
2d 21h
began August 2, 2024
Rank in state
74th/102
2298th of 2,990 US

Compared with IL, the US and 2023

Hamilton County, IL average hours without power per customer compared with state and national averages, 2024Hamilton County 2.4 hours, Illinois average 3.0 hours, US average 12.6 hours, Hamilton County, 2023 1.5 hoursHamilton CountyHamilton County2.4hIllinois averageIllinois average3.0hUS averageUS average12.6hHamilton County, 2023Hamilton County, 20231.5h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Hamilton County, IL customer-hours without power by month, 2024Jan 300, Feb 274, Mar 189, Apr 435, May 947, Jun 266, Jul 2,472, Aug 3,346, Sep 293, Oct 19, Nov 1,922, Dec 59101k2k3k4k300Jan274Feb189Mar435Apr947May266Jun2,472Jul3,346Aug293Sep19Oct1,922Nov591Dec
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Customer-hours; August was the worst month.

Hamilton County year over year

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Hamilton County, IL: average hours without power per customer by year2015: 0.4h; 2016: 1.2h; 2017: 0.8h; 2018: 1.5h, coverage 92%; 2019: 1.0h, coverage 99%; 2020: 5.6h, coverage 94%; 2021: 1.3h, coverage 98%; 2022: 1.1h, coverage 98%; 2023: 1.5h; 2024: 2.4h; 2025: 7.0h024680%50%100%0.4h20151.2h20160.8h20171.5h20181.0h20195.6h20201.3h20211.1h20221.5h20232.4h20247.0h2025
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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 Hamilton County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 28, 2024 01:00November 28, 2024 02:151h 15m1,6681,704
2August 1, 2024 13:15August 2, 2024 05:1516h1,1363,101
3December 4, 2024 07:15December 4, 2024 07:4530m556278
4December 5, 2024 10:15December 5, 2024 10:4530m556278
5July 28, 2024 23:15July 29, 2024 03:154h277975
6July 20, 2024 13:45July 20, 2024 19:155h 30m2721,116
7January 22, 2024 21:15January 22, 2024 22:151h236236
8May 27, 2024 01:30May 28, 2024 13:151d 11h196609
9September 16, 2024 13:00September 16, 2024 16:003h190151
10September 17, 2024 21:00September 17, 2024 21:4545m15148

Outage episodes by size in 2024: 19 reached 100+ customers, 2 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 Hamilton County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Southeastern IL Elec Coop, Inc202410.0 hrs3.072.3 hrs1.50
Tri-County Electric Coop, Inc (IL)20246.2 hrs2.5064 min0.73
Wayne-White Counties Elec Coop-----
City of McLeansboro - (IL)-----

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,619 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. Hamilton County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hamilton County, IL annual power outage report, 2024, 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/2024/illinois/hamilton-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON