massoutage

County annual report · FIPS 19051

2023 Davis County, IA Power Outage Report

In 2023, customers in Davis County, IA went without power for an average of 2.1 hours, a total of 9,950 customer-hours (Iowa average 2.0 hours). That ranks 39th worst of 99 Iowa counties and 2241st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
2.1
4,718 customers
Customer-hours out
9,950
Peak customers out
437
Outages ≥1,000 out
0
0 of 10,000+ · 137 total
Longest outage
1d
began March 31, 2023
Rank in state
39th/99
2241st of 2,977 US

Compared with IA, the US and 2022

Davis County, IA average hours without power per customer compared with state and national averages, 2023Davis County 2.1 hours, Iowa average 2.0 hours, US average 7.1 hours, Davis County, 2022 0.8 hoursDavis CountyDavis County2.1hIowa averageIowa average2.0hUS averageUS average7.1hDavis County, 2022Davis County, 20220.8h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Davis County, IA customer-hours without power by month, 2023Jan 13, Feb 227, Mar 1,438, Apr 3,350, May 310, Jun 2,196, Jul 462, Aug 378, Sep 1,303, Oct 31, Nov 11, Dec 23301k2k3k4k13Jan227Feb1,438Mar3,350Apr310May2,196Jun462Jul378Aug1,303Sep31Oct11Nov233Dec
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Customer-hours; April was the worst month.

Davis County year over year

CSVJSON
Davis County, IA: average hours without power per customer by year2015: 2.0h; 2016: 0.4h; 2017: 2.8h; 2018: 1.2h, coverage 89%; 2019: 2.3h, coverage 89%; 2020: 1.4h, coverage 91%; 2021: 2.0h, coverage 91%; 2022: 0.8h, coverage 91%; 2023: 2.1h; 2024: 2.5h; 2025: 0.8h01230%50%100%2.0h20150.4h20162.8h20171.2h20182.3h20191.4h20202.0h20210.8h20222.1h20232.5h20240.8h2025
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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 Davis County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 4, 2023 14:15March 4, 2023 20:156h437867
2June 29, 2023 15:00June 30, 2023 12:1521h 15m3401,932
3July 30, 2023 14:45July 30, 2023 16:151h 30m325349
4March 31, 2023 21:45April 1, 2023 22:151d2933,038
5April 14, 2023 18:15April 14, 2023 19:451h 30m202303
6June 28, 2023 14:30June 28, 2023 17:453h 15m20255
7December 28, 2023 17:45December 28, 2023 18:451h18594
8April 20, 2023 06:15April 20, 2023 11:004h 45m124320
9September 21, 2023 10:15September 21, 2023 17:006h 45m94193
10September 22, 2023 00:00September 22, 2023 11:1511h 15m931,012

Outage episodes by size in 2023: 8 reached 100+ customers, 0 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 Davis 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
Chariton Valley Elec Coop, Inc20182.3 hrs1.232.3 hrs1.23
Southern Iowa Elec Coop, Inc20181.9 hrs1.001.9 hrs1.00
Interstate Power and Light Co-----
Access Energy Coop-----
City of Bloomfield - (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 ÷ 4,718 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. Davis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Davis 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/davis-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON