massoutage

County annual report · FIPS 17133

2023 Monroe County, IL Power Outage Report

In 2023, customers in Monroe County, IL went without power for an average of 29.2 hours, a total of 456K customer-hours (Illinois average 4.0 hours). That ranks 6th worst of 102 Illinois counties and 248th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
29.2
15,588 customers
Customer-hours out
456K
Peak customers out
7,417
Outages ≥1,000 out
5
0 of 10,000+ · 462 total
Longest outage
5d 6h
began June 30, 2023
Rank in state
6th/102
248th of 2,977 US

Compared with IL, the US and 2022

Monroe County, IL average hours without power per customer compared with state and national averages, 2023Monroe County 29.2 hours, Illinois average 4.0 hours, US average 7.1 hours, Monroe County, 2022 1.9 hoursMonroe CountyMonroe County29.2hIllinois averageIllinois average4.0hUS averageUS average7.1hMonroe County, 2022Monroe County, 20221.9h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Monroe County, IL customer-hours without power by month, 2023Jan 14K, Feb 874, Mar 403, Apr 17K, May 2,153, Jun 1,993, Jul 405K, Aug 3,607, Sep 2,338, Oct 2,268, Nov 553, Dec 6,0120200k400k600k14KJan874Feb403Mar17KApr2,153May1,993Jun405KJul3,607Aug2,338Sep2,268Oct553Nov6,012Dec
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Customer-hours; July was the worst month.

Monroe County year over year

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Monroe County, IL: average hours without power per customer by year2015: 0.9h; 2016: 6.8h; 2017: 0.6h; 2018: 1.6h, coverage 92%; 2019: 1.4h, coverage 99%; 2020: 6.2h, coverage 94%; 2021: 1.6h, coverage 98%; 2022: 1.9h, coverage 98%; 2023: 29.2h; 2024: 2.0h; 2025: 14.7h01020300%50%100%0.9h20156.8h20160.6h20171.6h20181.4h20196.2h20201.6h20211.9h202229.2h20232.0h202414.7h2025
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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 Monroe County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 30, 2023 21:00July 6, 2023 03:005d 6h7,417383K
2December 25, 2023 13:15December 25, 2023 23:1510h5,9484,773
3January 19, 2023 00:15January 19, 2023 09:159h3,37810K
4July 29, 2023 21:15August 1, 2023 02:002d 4h2,64517K
5July 26, 2023 12:30July 26, 2023 16:454h 15m1,9141,779
6April 16, 2023 00:00April 18, 2023 06:002d 6h88111K
7December 14, 2023 13:45December 14, 2023 23:159h 30m620837
8April 24, 2023 12:30April 24, 2023 15:002h 30m581593
9June 5, 2023 12:45June 5, 2023 13:3045m510128
10January 21, 2023 21:30January 22, 2023 01:454h 15m4821,759

Outage episodes by size in 2023: 33 reached 100+ customers, 5 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 Monroe County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Ameren Illinois Company20239.9 hrs1.331.9 hrs0.82
Egyptian Electric Coop Assn20234.4 hrs---
Monroe County Elec Coop, Inc20181.6 hrs0.841.6 hrs0.84
City of Waterloo - (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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 15,588 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. Monroe County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Monroe County, IL annual power outage report, 2023, 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/2023/illinois/monroe-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON