massoutage

County annual report · FIPS 19135

2023 Monroe County, IA Power Outage Report

In 2023, customers in Monroe County, IA went without power for an average of 16.8 hours, a total of 68K customer-hours (Iowa average 2.0 hours). That ranks 1st worst of 99 Iowa counties and 513th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
16.8
4,056 customers
Customer-hours out
68K
Peak customers out
866
Outages ≥1,000 out
0
0 of 10,000+ · 301 total
Longest outage
2d 14h
began August 4, 2023
Rank in state
1st/99
513th of 2,977 US

Compared with IA, the US and 2022

Monroe County, IA average hours without power per customer compared with state and national averages, 2023Monroe County 16.8 hours, Iowa average 2.0 hours, US average 7.1 hours, Monroe County, 2022 10.0 hoursMonroe CountyMonroe County16.8hIowa averageIowa average2.0hUS averageUS average7.1hMonroe County, 2022Monroe County, 202210.0h
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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, IA customer-hours without power by month, 2023Jan 2,288, Feb 1,208, Mar 43K, Apr 2,932, May 870, Jun 3,170, Jul 5,586, Aug 1,233, Sep 1,142, Oct 3,317, Nov 3,221, Dec 306020k40k60k2,288Jan1,208Feb43KMar2,932Apr870May3,170Jun5,586Jul1,233Aug1,142Sep3,317Oct3,221Nov306Dec
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Customer-hours; March was the worst month.

Monroe County year over year

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Monroe County, IA: average hours without power per customer by year2015: 1.0h; 2016: 5.1h; 2017: 15.5h; 2018: 6.9h, coverage 89%; 2019: 13.8h, coverage 89%; 2020: 9.3h, coverage 91%; 2021: 7.7h, coverage 91%; 2022: 10.0h, coverage 91%; 2023: 16.8h; 2024: 21.3h; 2025: 11.7h01020300%50%100%1.0h20155.1h201615.5h20176.9h201813.8h20199.3h20207.7h202110.0h202216.8h202321.3h202411.7h2025
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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 Iowa 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
1March 18, 2023 13:00March 20, 2023 13:302d86640K
2April 5, 2023 11:15April 5, 2023 13:452h 30m809266
3January 13, 2023 07:00January 13, 2023 12:005h7261,514
4February 7, 2023 13:15February 7, 2023 15:302h 15m723730
5November 21, 2023 09:45November 21, 2023 13:303h 45m7232,696
6July 26, 2023 14:15July 26, 2023 16:152h714358
7June 29, 2023 12:45June 29, 2023 16:303h 45m528383
8March 28, 2023 13:30March 28, 2023 17:454h 15m502375
9June 24, 2023 14:15June 24, 2023 16:302h 15m481527
10June 10, 2023 05:15June 11, 2023 12:151d 7h466414

Outage episodes by size in 2023: 38 reached 100+ customers, 0 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
MidAmerican Energy Co20232.8 hrs1.1378 min0.83
Chariton Valley Elec Coop, Inc20182.3 hrs1.232.3 hrs1.23
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----

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 Iowa's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 4,056 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, IA 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/iowa/monroe-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON