massoutage

County annual report · FIPS 19113

2023 Linn County, IA Power Outage Report

In 2023, customers in Linn County, IA went without power for an average of 2.9 hours, a total of 349K customer-hours (Iowa average 2.0 hours). That ranks 26th worst of 99 Iowa counties and 1968th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
2.9
118,247 customers
Customer-hours out
349K
Peak customers out
30,010
Outages ≥1,000 out
19
1 of 10,000+ · 823 total
Longest outage
17d 1h
began August 29, 2023
Rank in state
26th/99
1968th of 2,977 US

Compared with IA, the US and 2022

Linn County, IA average hours without power per customer compared with state and national averages, 2023Linn County 2.9 hours, Iowa average 2.0 hours, US average 7.1 hours, Linn County, 2022 0.9 hoursLinn CountyLinn County2.9hIowa averageIowa average2.0hUS averageUS average7.1hLinn County, 2022Linn County, 20220.9h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Linn County, IA customer-hours without power by month, 2023Jan 4,796, Feb 5,601, Mar 16K, Apr 28K, May 22K, Jun 35K, Jul 193K, Aug 13K, Sep 15K, Oct 6,674, Nov 2,782, Dec 5,745050k100k150k200k4,796Jan5,601Feb16KMar28KApr22KMay35KJun193KJul13KAug15KSep6,674Oct2,782Nov5,745Dec
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Customer-hours; July was the worst month.

Linn County year over year

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Linn County, IA: average hours without power per customer by year2015: 1.3h; 2016: 1.3h; 2017: 1.2h; 2018: 1.0h, coverage 89%; 2019: 1.6h, coverage 89%; 2020: 136.1h, coverage 91%; 2021: 1.1h, coverage 91%; 2022: 0.9h, coverage 91%; 2023: 2.9h; 2024: 1.5h; 2025: 1.2h0501001500%50%100%1.3h20151.3h20161.2h20171.0h20181.6h2019136.1h20201.1h20210.9h20222.9h20231.5h20241.2h2025
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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 Linn 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 28, 2023 19:00August 1, 2023 02:153d 7h30,010184K
2March 31, 2023 22:30April 2, 2023 02:151d 3h8,16230K
3June 4, 2023 11:45June 7, 2023 22:153d 10h4,47417K
4July 11, 2023 12:00July 12, 2023 11:3023h 30m3,7753,569
5May 7, 2023 21:45May 8, 2023 18:4521h3,3329,631
6March 14, 2023 13:15March 15, 2023 00:1511h3,1692,119
7January 24, 2023 11:15January 24, 2023 11:3015m2,929732
8June 23, 2023 12:15June 24, 2023 04:0015h 45m2,6037,776
9May 3, 2023 13:45May 5, 2023 20:452d 7h2,4124,595
10September 19, 2023 14:15September 19, 2023 20:156h1,8322,225

Outage episodes by size in 2023: 106 reached 100+ customers, 19 reached 1,000+ customers, 1 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 Linn 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
Eastern Iowa Light & Power Coop20233.1 hrs1.231.7 hrs0.98
East-Central Iowa Rural Elec Coop202352 min0.6552 min0.65
Maquoketa Valley Rrl Elec Coop20233.5 hrs1.3657 min0.66
Linn County REC20232.1 hrs1.822.1 hrs1.82
Interstate Power and Light Co-----
Alliant Energy (Interstate Power & Light)-----
City of Coggon - (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 ÷ 118,247 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. Linn County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Linn 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/linn-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON