massoutage

County annual report · FIPS 19149

2023 Plymouth County, IA Power Outage Report

In 2023, customers in Plymouth County, IA went without power for an average of 0.9 hours, a total of 7,504 customer-hours (Iowa average 2.0 hours). That ranks 81st worst of 99 Iowa counties and 2716th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.9
8,581 customers
Customer-hours out
7,504
Peak customers out
513
Outages ≥1,000 out
0
0 of 10,000+ · 257 total
Longest outage
1d 22h
began November 18, 2023
Rank in state
81st/99
2716th of 2,977 US

Compared with IA, the US and 2022

Plymouth County, IA average hours without power per customer compared with state and national averages, 2023Plymouth County 0.9 hours, Iowa average 2.0 hours, US average 7.1 hours, Plymouth County, 2022 2.2 hoursPlymouth CountyPlymouth County0.9hIowa averageIowa average2.0hUS averageUS average7.1hPlymouth County, 2022Plymouth County, 20222.2h
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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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Plymouth County, IA customer-hours without power by month, 2023Jan 115, Feb 266, Mar 146, Apr 96, May 561, Jun 419, Jul 425, Aug 1,404, Sep 471, Oct 1,535, Nov 72, Dec 1,99705001k1.5k2k115Jan266Feb146Mar96Apr561May419Jun425Jul1,404Aug471Sep1,535Oct72Nov1,997Dec
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Customer-hours; December was the worst month.

Plymouth County year over year

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Plymouth County, IA: average hours without power per customer by year2015: 0.2h; 2016: 3.2h; 2017: 1.4h; 2018: 1.5h, coverage 89%; 2019: 1.4h, coverage 89%; 2020: 2.3h, coverage 91%; 2021: 1.9h, coverage 91%; 2022: 2.2h, coverage 91%; 2023: 0.9h; 2024: 2.3h; 2025: 3.3h012340%50%100%0.2h20153.2h20161.4h20171.5h20181.4h20192.3h20201.9h20212.2h20220.9h20232.3h20243.3h2025
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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 Plymouth County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 13, 2023 00:30October 13, 2023 09:158h 45m5131,178
2December 25, 2023 15:00December 26, 2023 13:4522h 45m3771,008
3December 28, 2023 22:45December 29, 2023 00:301h 45m280477
4August 5, 2023 06:00August 5, 2023 11:005h194733
5September 11, 2023 15:00September 11, 2023 16:151h 15m189236
6December 22, 2023 02:45December 22, 2023 04:301h 45m188329
7October 22, 2023 00:45October 22, 2023 01:451h181181
8July 24, 2023 16:15July 24, 2023 16:3015m15840
9August 11, 2023 22:45August 12, 2023 00:151h 30m155156
10August 18, 2023 17:30August 18, 2023 20:303h128238

Outage episodes by size in 2023: 11 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 Plymouth 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
Iowa Lakes Electric Coop202352 min0.5152 min0.51
WAPA-- Western Area Power Administration-----
North West Rural Electric Coop-----
Woodbury County Rural E C A-----
City of Akron - (IA)-----
City of Hinton-----
City of Remsen - (IA)-----
Town of Westfield - (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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 8,581 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. Plymouth County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Plymouth 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/plymouth-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON