massoutage

County annual report · FIPS 19003

2024 Adams County, IA Power Outage Report

In 2024, customers in Adams County, IA went without power for an average of 19.1 hours, a total of 35K customer-hours (Iowa average 3.2 hours). That ranks 2nd worst of 99 Iowa counties and 528th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
19.1
1,844 customers
Customer-hours out
35K
Peak customers out
658
Outages ≥1,000 out
0
0 of 10,000+ · 179 total
Longest outage
6d 11h
began May 24, 2024
Rank in state
2nd/99
528th of 2,990 US

Compared with IA, the US and 2023

Adams County, IA average hours without power per customer compared with state and national averages, 2024Adams County 19.1 hours, Iowa average 3.2 hours, US average 12.6 hours, Adams County, 2023 4.4 hoursAdams CountyAdams County19.1hIowa averageIowa average3.2hUS averageUS average12.6hAdams County, 2023Adams County, 20234.4h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Adams County, IA customer-hours without power by month, 2024Jan 320, Feb 520, Mar 39, Apr 1,952, May 25K, Jun 454, Jul 1,403, Aug 2,150, Sep 1,931, Oct 437, Nov 131, Dec 322010k20k30k320Jan520Feb39Mar1,952Apr25KMay454Jun1,403Jul2,150Aug1,931Sep437Oct131Nov322Dec
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Customer-hours; May was the worst month.

Adams County year over year

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Adams County, IA: average hours without power per customer by year2015: 1.0h; 2016: 8.4h; 2017: 7.9h; 2018: 9.5h, coverage 89%; 2019: 7.3h, coverage 89%; 2020: 13.7h, coverage 91%; 2021: 7.9h, coverage 91%; 2022: 3.9h, coverage 91%; 2023: 4.4h; 2024: 19.1h; 2025: 3.2h051015200%50%100%1.0h20158.4h20167.9h20179.5h20187.3h201913.7h20207.9h20213.9h20224.4h202319.1h20243.2h2025
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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 Adams County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 21, 2024 20:15May 24, 2024 00:152d 4h65822K
2April 11, 2024 13:15April 11, 2024 13:4530m580181
3February 16, 2024 19:45February 16, 2024 21:151h 30m343428
4April 26, 2024 23:30April 27, 2024 22:3023h3271,088
5October 2, 2024 19:45October 2, 2024 23:153h 30m321409
6August 31, 2024 02:15September 4, 2024 20:454d 18h2983,135
7September 16, 2024 06:15September 16, 2024 08:452h 30m285296
8May 24, 2024 09:15May 30, 2024 20:456d 11h2712,719
9June 21, 2024 16:30June 21, 2024 17:301h27169
10June 17, 2024 13:45June 17, 2024 21:157h 30m241143

Outage episodes by size in 2024: 23 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 Adams 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
MidAmerican Energy Co20245.5 hrs1.421.7 hrs0.94
Southwest Iowa Rural Elec Coop20182.4 hrs1.691.6 hrs1.21
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
City of Corning - (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 ÷ 1,844 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. Adams County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Adams 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/adams-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON