massoutage

County annual report · FIPS 19095

2019 Iowa County, IA Power Outage Report

In 2019, customers in Iowa County, IA went without power for an average of 11.0 hours, a total of 77K customer-hours (Iowa average 2.2 hours). That ranks 4th worst of 99 Iowa counties and 486th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
11.0
6,965 customers
Customer-hours out
77K
Peak customers out
2,817
Outages ≥1,000 out
12
0 of 10,000+ · 699 total
Longest outage
24d 12h
began March 13, 2019
Rank in state
4th/99
486th of 2,945 US

Compared with IA, the US and 2018

Iowa County, IA average hours without power per customer compared with state and national averages, 2019Iowa County 11.0 hours, Iowa average 2.2 hours, US average 4.7 hours, Iowa County, 2018 10.2 hoursIowa CountyIowa County11.0hIowa averageIowa average2.2hUS averageUS average4.7hIowa County, 2018Iowa County, 201810.2h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

CSVJSON
Iowa County, IA customer-hours without power by month, 2019Jan 4,688, Feb 6,402, Mar 3,181, Apr 7,273, May 24K, Jun 4,697, Jul 4,125, Aug 4,106, Sep 11K, Oct 4,247, Nov 2,798, Dec 582010k20k30k4,688Jan6,402Feb3,181Mar7,273Apr24KMay4,697Jun4,125Jul4,106Aug11KSep4,247Oct2,798Nov582Dec
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Customer-hours; May 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, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 17, 2019 02:00May 22, 2019 15:305d 13h2,81715K
2January 30, 2019 11:30January 30, 2019 19:007h 30m2,7243,523
3September 3, 2019 07:45September 3, 2019 17:159h 30m2,6904,516
4March 13, 2019 21:30April 7, 2019 10:0024d 12h1,5952,793
5May 27, 2019 12:45May 27, 2019 21:308h 45m1,5897,340
6September 23, 2019 04:30September 23, 2019 07:002h 30m1,2062,714
7September 23, 2019 13:15September 23, 2019 16:453h 30m1,2051,513
8August 18, 2019 09:30August 18, 2019 19:009h 30m1,1761,162
9February 24, 2019 01:45February 24, 2019 08:306h 45m1,1611,239
10February 10, 2019 15:30February 10, 2019 16:301h1,1571,157

Outage episodes by size in 2019: 43 reached 100+ customers, 12 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 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
T I P Rural Electric Coop20182.5 hrs1.332.5 hrs1.33
Linn County REC20182.6 hrs1.132.6 hrs1.13
Farmers Electric Coop - (IA)201877 min2.3077 min2.30
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
East-Central Iowa Rural Elec Coop-----
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 89% of Iowa's customers in 2019; 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, 2019, 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/2019/iowa/iowa-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON