massoutage

County annual report · FIPS 19127

2024 Marshall County, IA Power Outage Report

In 2024, customers in Marshall County, IA went without power for an average of 3.3 hours, a total of 52K customer-hours (Iowa average 3.2 hours). That ranks 46th worst of 99 Iowa counties and 2023rd of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
3.3
15,945 customers
Customer-hours out
52K
Peak customers out
1,673
Outages ≥1,000 out
7
0 of 10,000+ · 499 total
Longest outage
4d 8h
began August 15, 2024
Rank in state
46th/99
2023rd of 2,990 US

Compared with IA, the US and 2023

Marshall County, IA average hours without power per customer compared with state and national averages, 2024Marshall County 3.3 hours, Iowa average 3.2 hours, US average 12.6 hours, Marshall County, 2023 1.5 hoursMarshall CountyMarshall County3.3hIowa averageIowa average3.2hUS averageUS average12.6hMarshall County, 2023Marshall 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

CSVJSON
Marshall County, IA customer-hours without power by month, 2024Jan 2,008, Feb 1,551, Mar 366, Apr 1,323, May 12K, Jun 5,280, Jul 2,800, Aug 12K, Sep 925, Oct 7,084, Nov 3,865, Dec 3,62305k10k15k2,008Jan1,551Feb366Mar1,323Apr12KMay5,280Jun2,800Jul12KAug925Sep7,084Oct3,865Nov3,623Dec
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Customer-hours; May was the worst month.

Marshall County year over year

CSVJSON
Marshall County, IA: average hours without power per customer by year2015: 2.1h; 2016: 3.4h; 2017: 3.9h; 2018: 33.8h, coverage 89%; 2019: 3.7h, coverage 89%; 2020: 143.9h, coverage 91%; 2021: 1.6h, coverage 91%; 2022: 1.7h, coverage 91%; 2023: 1.5h; 2024: 3.3h; 2025: 5.2h0501001500%50%100%2.1h20153.4h20163.9h201733.8h20183.7h2019143.9h20201.6h20211.7h20221.5h20233.3h20245.2h2025
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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 Marshall County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 30, 2024 12:15July 2, 2024 13:002d1,6732,078
2December 20, 2024 05:15December 20, 2024 07:302h 15m1,6343,221
3August 30, 2024 02:15August 30, 2024 08:306h 15m1,5975,522
4June 16, 2024 23:00June 17, 2024 03:304h 30m1,2922,264
5August 4, 2024 13:15August 4, 2024 19:456h 30m1,082862
6May 21, 2024 08:15May 24, 2024 00:152d 16h1,0388,042
7May 24, 2024 09:15May 24, 2024 19:1510h1,0292,355
8November 12, 2024 15:15November 12, 2024 22:006h 45m865266
9November 9, 2024 14:00November 9, 2024 18:154h 15m8643,023
10October 25, 2024 01:45October 25, 2024 05:454h8303,318

Outage episodes by size in 2024: 32 reached 100+ customers, 7 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 Marshall 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
Consumers Energy Coop - (IA)20248.2 hrs1.541.6 hrs1.00
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Midland Power Coop-----
Grundy County Rural Elec Coop-----
City of State Center - (IA)-----

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 15,945 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. Marshall County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Marshall County, IA 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/iowa/marshall-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON