massoutage

County annual report · FIPS 19113

2025 Linn County, IA Power Outage Report

In 2025, customers in Linn County, IA went without power for an average of 1.2 hours, a total of 143K customer-hours (Iowa average 2.9 hours). That ranks 93rd worst of 99 Iowa counties and 2697th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
1.2
118,247 customers
Customer-hours out
143K
Peak customers out
4,050
Outages ≥1,000 out
16
0 of 10,000+ · 944 total
Longest outage
3d 23h
began April 26, 2025
Rank in state
93rd/99
2697th of 3,000 US

Compared with IA, the US and 2024

Linn County, IA average hours without power per customer compared with state and national averages, 2025Linn County 1.2 hours, Iowa average 2.9 hours, US average 5.9 hours, Linn County, 2024 1.5 hoursLinn CountyLinn County1.2hIowa averageIowa average2.9hUS averageUS average5.9hLinn County, 2024Linn County, 20241.5h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Linn County, IA customer-hours without power by month, 2025Jan 1,961, Feb 2,353, Mar 4,673, Apr 7,813, May 21K, Jun 11K, Jul 44K, Aug 22K, Sep 7,374, Oct 12K, Nov 6,617, Dec 2,124020k40k60k1,961Jan2,353Feb4,673Mar7,813Apr21KMay11KJun44KJul22KAug7,374Sep12KOct6,617Nov2,124Dec
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Customer-hours; July was the worst month.

Linn County year over year

CSVJSON
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, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 12, 2025 07:45August 12, 2025 21:1513h 30m4,0507,153
2July 11, 2025 14:30July 14, 2025 21:153d 6h4,04327K
3July 29, 2025 07:30July 30, 2025 02:0018h 30m3,07210K
4September 5, 2025 12:45September 5, 2025 15:002h 15m3,0522,208
5April 19, 2025 23:30April 20, 2025 04:004h 30m2,5171,641
6April 8, 2025 13:30April 8, 2025 20:457h 15m2,3602,400
7October 4, 2025 02:45October 6, 2025 18:452d 16h2,2831,439
8October 10, 2025 09:15October 10, 2025 15:005h 45m2,2101,857
9June 14, 2025 11:45June 14, 2025 17:155h 30m1,9992,058
10May 11, 2025 04:30May 11, 2025 09:455h 15m1,7302,070

Outage episodes by size in 2025: 95 reached 100+ customers, 16 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 Linn County reported on EIA Form 861 for 2025, 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 Coop20243.7 hrs1.291.6 hrs0.90
East-Central Iowa Rural Elec Coop202438 min0.5338 min0.53
Maquoketa Valley Rrl Elec Coop20242.2 hrs1.2071 min0.82
Linn County REC20241.9 hrs1.501.9 hrs1.50
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 2025; 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, 2025, 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/2025/iowa/linn-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON