massoutage

County annual report · FIPS 19175

2024 Union County, IA Power Outage Report

In 2024, customers in Union County, IA went without power for an average of 2.3 hours, a total of 15K customer-hours (Iowa average 3.2 hours). That ranks 66th worst of 99 Iowa counties and 2336th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
2.3
6,645 customers
Customer-hours out
15K
Peak customers out
1,911
Outages ≥1,000 out
3
0 of 10,000+ · 354 total
Longest outage
3d 19h
began August 31, 2024
Rank in state
66th/99
2336th of 2,990 US

Compared with IA, the US and 2023

Union County, IA average hours without power per customer compared with state and national averages, 2024Union County 2.3 hours, Iowa average 3.2 hours, US average 12.6 hours, Union County, 2023 1.5 hoursUnion CountyUnion County2.3hIowa averageIowa average3.2hUS averageUS average12.6hUnion County, 2023Union 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
Union County, IA customer-hours without power by month, 2024Jan 2,100, Feb 205, Mar 362, Apr 4,109, May 1,464, Jun 723, Jul 622, Aug 1,073, Sep 1,484, Oct 2,328, Nov 289, Dec 19602k4k6k2,100Jan205Feb362Mar4,109Apr1,464May723Jun622Jul1,073Aug1,484Sep2,328Oct289Nov196Dec
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Customer-hours; April was the worst month.

Union County year over year

CSVJSON
Union County, IA: average hours without power per customer by year2015: 0.8h; 2016: 0.4h; 2017: 1.1h; 2018: 2.7h, coverage 89%; 2019: 1.9h, coverage 89%; 2020: 1.3h, coverage 91%; 2021: 2.7h, coverage 91%; 2022: 2.0h, coverage 91%; 2023: 1.5h; 2024: 2.3h; 2025: 1.9h01230%50%100%0.8h20150.4h20161.1h20172.7h20181.9h20191.3h20202.7h20212.0h20221.5h20232.3h20241.9h2025
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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 Union County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 22, 2024 17:45October 22, 2024 18:451h1,911958
2January 4, 2024 15:15January 4, 2024 18:453h 30m1,841488
3April 26, 2024 23:30April 28, 2024 02:301d 3h1,5123,568
4August 1, 2024 00:15August 1, 2024 05:004h 45m960761
5January 9, 2024 12:30January 10, 2024 16:451d 4h4651,434
6September 22, 2024 02:45September 22, 2024 06:153h 30m4231,070
7October 25, 2024 01:45October 25, 2024 05:303h 45m331632
8July 31, 2024 14:45July 31, 2024 15:0015m24060
9November 1, 2024 17:00November 1, 2024 19:302h 30m159121
10October 1, 2024 13:45October 1, 2024 19:005h 15m147160

Outage episodes by size in 2024: 16 reached 100+ customers, 3 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 Union 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
Southwest Iowa Rural Elec Coop20182.4 hrs1.691.6 hrs1.21
Farmers Electric Coop, Inc - (IA)20185.9 hrs1.442.1 hrs1.26
WAPA-- Western Area Power Administration-----
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Clarke Electric Coop Inc - (IA)-----
City of Afton- (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 ÷ 6,645 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. Union County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Union 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/union-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON