massoutage

County annual report · FIPS 19035

2017 Cherokee County, IA Power Outage Report

In 2017, customers in Cherokee County, IA went without power for an average of 0.9 hours, a total of 5,568 customer-hours (Iowa average 2.0 hours). That ranks 80th worst of 99 Iowa counties and 2069th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
0.9
5,968 customers
Customer-hours out
5,568
Peak customers out
2,355
Outages ≥1,000 out
2
0 of 10,000+ · 155 total
Longest outage
1d 1h
began July 16, 2017
Rank in state
80th/99
2069th of 2,786 US

Compared with IA, the US and 2016

Cherokee County, IA average hours without power per customer compared with state and national averages, 2017Cherokee County 0.9 hours, Iowa average 2.0 hours, US average 7.4 hours, Cherokee County, 2016 2.0 hoursCherokee CountyCherokee County0.9hIowa averageIowa average2.0hUS averageUS average7.4hCherokee County, 2016Cherokee County, 20162.0h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

CSVJSON
Cherokee County, IA customer-hours without power by month, 2017Jan 240, Feb 18, Mar 245, Apr 2,135, May 993, Jun 783, Jul 347, Aug 266, Sep 145, Oct 8, Nov 322, Dec 6801k2k3k240Jan18Feb245Mar2,135Apr993May783Jun347Jul266Aug145Sep8Oct322Nov68Dec
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Customer-hours; April was the worst month.

Cherokee County year over year

CSVJSON
Cherokee County, IA: average hours without power per customer by year2015: 0.2h; 2016: 2.0h; 2017: 0.9h; 2018: 1.7h, coverage 89%; 2019: 0.9h, coverage 89%; 2020: 0.8h, coverage 91%; 2021: 2.9h, coverage 91%; 2022: 1.3h, coverage 91%; 2023: 0.9h; 2024: 2.5h; 2025: 6.2h024680%50%100%0.2h20152.0h20160.9h20171.7h20180.9h20190.8h20202.9h20211.3h20220.9h20232.5h20246.2h2025
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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 Cherokee County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 5, 2017 22:45April 5, 2017 23:0015m2,355589
2April 6, 2017 13:45April 6, 2017 14:0015m1,663416
3April 25, 2017 04:15April 25, 2017 05:0045m578434
4June 14, 2017 03:00June 14, 2017 05:452h 45m344440
5June 19, 2017 11:15June 19, 2017 12:451h 30m268280
6July 26, 2017 11:45July 26, 2017 13:001h 15m231232
7April 11, 2017 14:00April 11, 2017 17:153h 15m218659
8January 13, 2017 22:00January 14, 2017 00:002h197221
9May 9, 2017 15:15May 9, 2017 16:151h8667
10May 20, 2017 07:30May 20, 2017 13:005h 30m67197

Outage episodes by size in 2017: 8 reached 100+ customers, 2 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 Cherokee County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co20171.9 hrs1.001.6 hrs0.91
Iowa Lakes Electric Coop201748 min0.5648 min0.56
WAPA-- Western Area Power Administration-----
Interstate Power and Light Co-----
North West Rural Electric Coop-----
Woodbury County Rural E C A-----
City of Aurelia - (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 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 5,968 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. Cherokee County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Cherokee County, IA annual power outage report, 2017, 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/2017/iowa/cherokee-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON