County annual report · FIPS 46029
2025 Codington County, SD Power Outage Report
In 2025, customers in Codington County, SD went without power for an average of 0.1 hours, a total of 2,693 customer-hours (South Dakota average 6.5 hours). That ranks 61st worst of 65 South Dakota counties and 2938th of 3,000 nationally.
Compared with SD, the US and 2024
Coverage line is EAGLE-I's share of South Dakota customers tracked each year.
Biggest outages in Codington County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 10, 2025 04:45 | December 10, 2025 07:00 | 2h 15m | 330 | 523 |
| 2 | April 14, 2025 22:15 | April 14, 2025 22:45 | 30m | 328 | 164 |
| 3 | June 11, 2025 14:30 | June 11, 2025 15:45 | 1h 15m | 328 | 410 |
| 4 | July 1, 2025 21:45 | July 1, 2025 23:45 | 2h | 296 | 592 |
| 5 | May 24, 2025 00:15 | May 24, 2025 02:45 | 2h 30m | 218 | 545 |
| 6 | October 26, 2025 17:15 | October 26, 2025 18:45 | 1h 30m | 170 | 213 |
| 7 | May 15, 2025 22:15 | May 15, 2025 22:30 | 15m | 67 | 17 |
| 8 | September 10, 2025 02:00 | September 10, 2025 05:15 | 3h 15m | 14 | 44 |
| 9 | October 4, 2025 23:30 | October 5, 2025 01:15 | 1h 45m | 13 | 23 |
| 10 | December 21, 2025 20:30 | December 21, 2025 21:45 | 1h 15m | 9 | 11 |
Outage episodes by size in 2025: 6 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 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Otter Tail Power Co | 2024 | 2.6 hrs | 1.37 | 1.9 hrs | 1.09 |
| NorthWestern Energy - (SD) | 2024 | 76 min | 0.70 | 66 min | 0.65 |
| H-D Electric Coop Inc | 2018 | 2.6 hrs | 1.52 | 1.6 hrs | 1.14 |
| Whetstone Valley Elec Coop Inc | 2018 | 73 min | 0.64 | 42 min | 0.43 |
| Watertown Municipal Utilities | 2024 | 3 min | 0.06 | 3 min | 0.06 |
| 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 2025; 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, 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/south-dakota/codington-county