massoutage

County annual report · FIPS 19193

2023 Woodbury County, IA Power Outage Report

In 2023, customers in Woodbury County, IA went without power for an average of 1.4 hours, a total of 36K customer-hours (Iowa average 2.0 hours). That ranks 57th worst of 99 Iowa counties and 2524th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
1.4
25,626 customers
Customer-hours out
36K
Peak customers out
2,227
Outages ≥1,000 out
7
0 of 10,000+ · 703 total
Longest outage
4d 1h
began November 9, 2023
Rank in state
57th/99
2524th of 2,977 US

Compared with IA, the US and 2022

Woodbury County, IA average hours without power per customer compared with state and national averages, 2023Woodbury County 1.4 hours, Iowa average 2.0 hours, US average 7.1 hours, Woodbury County, 2022 2.4 hoursWoodbury CountyWoodbury County1.4hIowa averageIowa average2.0hUS averageUS average7.1hWoodbury County, 2022Woodbury County, 20222.4h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Woodbury County, IA customer-hours without power by month, 2023Jan 1,205, Feb 617, Mar 1,634, Apr 2,138, May 1,699, Jun 2,009, Jul 13K, Aug 4,525, Sep 2,771, Oct 2,778, Nov 1,661, Dec 2,15105k10k15k1,205Jan617Feb1,634Mar2,138Apr1,699May2,009Jun13KJul4,525Aug2,771Sep2,778Oct1,661Nov2,151Dec
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Customer-hours; July was the worst month.

Woodbury County year over year

CSVJSON
Woodbury County, IA: average hours without power per customer by year2015: 0.6h; 2016: 8.1h; 2017: 2.1h; 2018: 2.1h, coverage 89%; 2019: 2.2h, coverage 89%; 2020: 3.4h, coverage 91%; 2021: 4.1h, coverage 91%; 2022: 2.4h, coverage 91%; 2023: 1.4h; 2024: 5.4h; 2025: 4.9h02.557.5100%50%100%0.6h20158.1h20162.1h20172.1h20182.2h20193.4h20204.1h20212.4h20221.4h20235.4h20244.9h2025
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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 Woodbury County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 14, 2023 17:30July 15, 2023 00:006h 30m2,2274,478
2March 16, 2023 12:45March 16, 2023 13:3045m1,6911,268
3April 13, 2023 19:45April 13, 2023 23:303h 45m1,547790
4September 4, 2023 22:45September 5, 2023 02:303h 45m1,502870
5July 12, 2023 10:45July 13, 2023 01:4515h1,3206,397
6August 24, 2023 21:30August 25, 2023 01:454h 15m1,115319
7December 28, 2023 21:45December 29, 2023 00:453h1,104564
8September 11, 2023 14:45September 11, 2023 19:154h 30m673176
9December 25, 2023 17:15December 26, 2023 02:309h 15m544473
10November 9, 2023 13:30November 13, 2023 15:004d 1h511886

Outage episodes by size in 2023: 34 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 Woodbury 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
Western Iowa Power Coop201847 min0.7647 min0.76
WAPA-- Western Area Power Administration-----
North West Rural Electric Coop-----
Woodbury County Rural E C A-----
City of Anthon - (IA)-----
City of Sergeant Bluff - (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 ÷ 25,626 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. Woodbury County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Woodbury 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/woodbury-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON