massoutage

County annual report · FIPS 19193

2020 Woodbury County, IA Power Outage Report

In 2020, customers in Woodbury County, IA went without power for an average of 3.4 hours, a total of 87K customer-hours (Iowa average 27.4 hours). That ranks 38th worst of 99 Iowa counties and 1757th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
3.4
25,626 customers
Customer-hours out
87K
Peak customers out
6,138
Outages ≥1,000 out
14
0 of 10,000+ · 725 total
Longest outage
2d 20h
began August 21, 2020
Rank in state
38th/99
1757th of 3,019 US

Compared with IA, the US and 2019

Woodbury County, IA average hours without power per customer compared with state and national averages, 2020Woodbury County 3.4 hours, Iowa average 27.4 hours, US average 8.7 hours, Woodbury County, 2019 2.2 hoursWoodbury CountyWoodbury County3.4hIowa averageIowa average27.4hUS averageUS average8.7hWoodbury County, 2019Woodbury County, 20192.2h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Woodbury County, IA customer-hours without power by month, 2020Jan 5,910, Feb 8,022, Mar 12K, Apr 6,527, May 1,423, Jun 5,940, Jul 20K, Aug 4,813, Sep 9,600, Oct 1,644, Nov 5,687, Dec 5,27105k10k15k20k5,910Jan8,022Feb12KMar6,527Apr1,423May5,940Jun20KJul4,813Aug9,600Sep1,644Oct5,687Nov5,271Dec
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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, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1February 2, 2020 16:00February 2, 2020 23:457h 45m6,1387,535
2July 6, 2020 23:30July 7, 2020 13:0013h 30m3,5734,990
3January 3, 2020 17:00January 5, 2020 07:151d 14h3,5163,092
4July 9, 2020 11:15July 9, 2020 16:155h3,4083,611
5March 20, 2020 01:15March 20, 2020 15:4514h 30m3,1537,124
6September 8, 2020 12:30September 8, 2020 14:452h 15m2,3211,742
7July 18, 2020 07:00July 18, 2020 08:151h 15m2,1521,614
8April 12, 2020 11:30April 12, 2020 20:008h 30m1,3304,606
9December 23, 2020 15:15December 24, 2020 03:3012h 15m1,3274,365
10March 1, 2020 08:45March 1, 2020 11:453h1,1152,214

Outage episodes by size in 2020: 48 reached 100+ customers, 14 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 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co202018.3 hrs1.4382 min0.79
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 91% of Iowa's customers in 2020; 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, 2020, 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/2020/iowa/woodbury-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON