massoutage

County annual report · FIPS 19129

2024 Mills County, IA Power Outage Report

In 2024, customers in Mills County, IA went without power for an average of 4.0 hours, a total of 29K customer-hours (Iowa average 3.2 hours). That ranks 35th worst of 99 Iowa counties and 1839th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
4.0
7,270 customers
Customer-hours out
29K
Peak customers out
2,185
Outages ≥1,000 out
4
0 of 10,000+ · 323 total
Longest outage
1d 14h
began June 25, 2024
Rank in state
35th/99
1839th of 2,990 US

Compared with IA, the US and 2023

Mills County, IA average hours without power per customer compared with state and national averages, 2024Mills County 4.0 hours, Iowa average 3.2 hours, US average 12.6 hours, Mills County, 2023 1.5 hoursMills CountyMills County4.0hIowa averageIowa average3.2hUS averageUS average12.6hMills County, 2023Mills County, 20231.5h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

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Mills County, IA customer-hours without power by month, 2024Jan 5,330, Feb 68, Mar 223, Apr 1,991, May 8,865, Jun 9,234, Jul 930, Aug 867, Sep 287, Oct 107, Nov 945, Dec 35002.5k5k7.5k10k5,330Jan68Feb223Mar1,991Apr8,865May9,234Jun930Jul867Aug287Sep107Oct945Nov350Dec
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Customer-hours; June was the worst month.

Mills County year over year

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Mills County, IA: average hours without power per customer by year2015: 0.7h; 2016: 3.9h; 2017: 8.2h; 2018: 7.6h, coverage 89%; 2019: 2.3h, coverage 89%; 2020: 3.1h, coverage 91%; 2021: 12.5h, coverage 91%; 2022: 5.0h, coverage 91%; 2023: 1.5h; 2024: 4.0h; 2025: 2.5h0510150%50%100%0.7h20153.9h20168.2h20177.6h20182.3h20193.1h202012.5h20215.0h20221.5h20234.0h20242.5h2025
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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 Mills County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 14, 2024 14:30June 14, 2024 16:452h 15m2,1851,098
2May 14, 2024 06:45May 14, 2024 09:453h1,2242,454
3June 25, 2024 21:00June 27, 2024 11:151d 14h1,1483,273
4May 7, 2024 01:15May 7, 2024 18:0016h 45m1,1252,516
5May 24, 2024 09:15May 25, 2024 09:451d8093,378
6January 13, 2024 19:15January 13, 2024 20:151h769769
7April 6, 2024 20:30April 7, 2024 05:459h 15m5701,669
8January 9, 2024 08:30January 10, 2024 06:1521h 45m3233,674
9November 23, 2024 01:45November 23, 2024 04:453h323646
10May 31, 2024 02:15May 31, 2024 04:302h 15m190400

Outage episodes by size in 2024: 18 reached 100+ customers, 4 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 Mills County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
MidAmerican Energy Co20245.5 hrs1.421.7 hrs0.94
Southwest Iowa Rural Elec Coop20182.4 hrs1.691.6 hrs1.21

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 7,270 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. Mills County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Mills County, IA annual power outage report, 2024, 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/2024/iowa/mills-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON