massoutage

County annual report · FIPS 19095

2020 Iowa County, IA Power Outage Report

In 2020, customers in Iowa County, IA went without power for an average of 33.3 hours, a total of 232K customer-hours (Iowa average 27.4 hours). That ranks 12th worst of 99 Iowa counties and 245th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
33.3
6,965 customers
Customer-hours out
232K
Peak customers out
6,828
Outages ≥1,000 out
1
0 of 10,000+ · 406 total
Longest outage
10d 14h
began August 10, 2020
Rank in state
12th/99
245th of 3,019 US

Compared with IA, the US and 2019

Iowa County, IA average hours without power per customer compared with state and national averages, 2020Iowa County 33.3 hours, Iowa average 27.4 hours, US average 8.7 hours, Iowa County, 2019 11.0 hoursIowa CountyIowa County33.3hIowa averageIowa average27.4hUS averageUS average8.7hIowa County, 2019Iowa County, 201911.0h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

CSVJSON
Iowa County, IA customer-hours without power by month, 2020Jan 2,648, Feb 1,025, Mar 167, Apr 488, May 833, Jun 1,061, Jul 680, Aug 223K, Sep 769, Oct 288, Nov 740, Dec 2180100k200k300k2,648Jan1,025Feb167Mar488Apr833May1,061Jun680Jul223KAug769Sep288Oct740Nov218Dec
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Customer-hours; August was the worst month.

Iowa County year over year

CSVJSON
Iowa County, IA: average hours without power per customer by year2015: 3.1h; 2016: 9.6h; 2017: 8.0h; 2018: 10.2h, coverage 89%; 2019: 11.0h, coverage 89%; 2020: 33.3h, coverage 91%; 2021: 8.5h, coverage 91%; 2022: 2.2h, coverage 91%; 2023: 3.4h; 2024: 4.3h; 2025: 4.9h0102030400%50%100%3.1h20159.6h20168.0h201710.2h201811.0h201933.3h20208.5h20212.2h20223.4h20234.3h20244.9h2025
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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 Iowa County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 10, 2020 14:30August 21, 2020 04:4510d 14h6,828223K
2September 28, 2020 20:45September 28, 2020 22:301h 45m653166
3May 26, 2020 19:45May 26, 2020 22:453h479412
4June 11, 2020 09:30June 11, 2020 11:302h341626
5January 10, 2020 22:45January 11, 2020 20:1521h 30m2501,762
6November 2, 2020 01:15November 2, 2020 03:302h 15m216271
7October 1, 2020 12:45October 1, 2020 15:453h14977
8February 27, 2020 12:30February 27, 2020 17:305h123260
9July 9, 2020 17:15July 9, 2020 23:456h 30m115140
10September 12, 2020 01:45September 12, 2020 06:004h 15m9299

Outage episodes by size in 2020: 9 reached 100+ customers, 1 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 Iowa 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
East-Central Iowa Rural Elec Coop202014.1 hrs1.0154 min0.59
T I P Rural Electric Coop20182.5 hrs1.332.5 hrs1.33
Linn County REC202058.0 hrs3.022.6 hrs1.74
Farmers Electric Coop - (IA)201877 min2.3077 min2.30
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
Amana Society Service Co-----

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 ÷ 6,965 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. Iowa County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Iowa 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/iowa-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON