massoutage

County annual report · FIPS 46029

2023 Codington County, SD Power Outage Report

In 2023, customers in Codington County, SD went without power for an average of 0.3 hours, a total of 6,149 customer-hours (South Dakota average 2.3 hours). That ranks 55th worst of 61 South Dakota counties and 2875th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.3
24,302 customers
Customer-hours out
6,149
Peak customers out
985
Outages ≥1,000 out
0
0 of 10,000+ · 45 total
Longest outage
15h 15m
began June 22, 2023
Rank in state
55th/61
2875th of 2,977 US

Compared with SD, the US and 2022

Codington County, SD average hours without power per customer compared with state and national averages, 2023Codington County 0.3 hours, South Dakota average 2.3 hours, US average 7.1 hours, Codington County, 2022 0.5 hoursCodington CountyCodington County0.3hSouth Dakota averageSouth Dakota average2.3hUS averageUS average7.1hCodington County, 2022Codington County, 20…0.5h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Codington County, SD customer-hours without power by month, 2023Jan 463, Feb 5, Mar 14, Apr 4,891, May 0, Jun 116, Jul 314, Aug 259, Sep 0, Oct 13, Nov 17, Dec 5802k4k6k463Jan5Feb14Mar4,891Apr0May116Jun314Jul259Aug0Sep13Oct17Nov58Dec
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Customer-hours; April was the worst month.

Codington County year over year

CSVJSON
Codington County, SD: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: 0.0h, coverage 87%; 2020: 0.4h, coverage 79%; 2021: 0.1h, coverage 79%; 2022: 0.5h, coverage 89%; 2023: 0.3h; 2024: 0.1h; 2025: 0.1h00.20.40.60%50%100%n/a2015n/a2016n/a2017n/a20180.0h20190.4h20200.1h20210.5h20220.3h20230.1h20240.1h2025
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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 South Dakota customers tracked each year.

Biggest outages in Codington County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 5, 2023 11:45April 5, 2023 18:006h 15m9854,321
2April 5, 2023 20:15April 5, 2023 23:303h 15m142357
3January 26, 2023 23:45January 27, 2023 03:153h 30m127427
4July 22, 2023 01:30July 22, 2023 10:158h 45m72265
5August 11, 2023 00:30August 11, 2023 10:009h 30m22163
6August 21, 2023 19:45August 21, 2023 22:152h 30m2255
7April 18, 2023 15:15April 18, 2023 23:007h 45m1968
8July 25, 2023 13:45July 25, 2023 16:002h 15m1428
9April 6, 2023 15:00April 6, 2023 19:304h 30m1236
10April 13, 2023 15:30April 13, 2023 17:302h1224

Outage episodes by size in 2023: 3 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 Codington 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
Otter Tail Power Co20232.4 hrs1.781.9 hrs1.68
NorthWestern Energy - (SD)20231.9 hrs1.3774 min1.03
H-D Electric Coop Inc20182.6 hrs1.521.6 hrs1.14
Whetstone Valley Elec Coop Inc201873 min0.6442 min0.43
Watertown Municipal Utilities20237 min0.107 min0.10
WAPA-- Western Area Power Administration-----
Codington-Clark Elec Coop, Inc-----

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 South Dakota's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 24,302 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. Codington County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Codington County, SD 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/south-dakota/codington-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON