County annual report · FIPS 46071
2025 Jackson County, SD Power Outage Report
In 2025, customers in Jackson County, SD went without power for an average of 1.4 hours, a total of 1,320 customer-hours (South Dakota average 6.5 hours). That ranks 47th worst of 65 South Dakota counties and 2635th 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 Jackson 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 | July 30, 2025 09:30 | July 30, 2025 10:15 | 45m | 130 | 77 |
| 2 | June 25, 2025 18:15 | June 25, 2025 20:30 | 2h 15m | 71 | 50 |
| 3 | January 1, 2025 19:45 | January 1, 2025 22:45 | 3h | 31 | 78 |
| 4 | March 13, 2025 15:45 | March 13, 2025 19:45 | 4h | 24 | 96 |
| 5 | June 10, 2025 15:15 | June 10, 2025 18:30 | 3h 15m | 21 | 68 |
| 6 | June 29, 2025 02:00 | June 29, 2025 12:45 | 10h 45m | 21 | 136 |
| 7 | December 22, 2025 17:15 | December 22, 2025 18:30 | 1h 15m | 21 | 26 |
| 8 | January 30, 2025 17:45 | January 30, 2025 18:15 | 30m | 15 | 8 |
| 9 | May 5, 2025 21:15 | May 5, 2025 21:45 | 30m | 13 | 5 |
| 10 | June 5, 2025 17:30 | June 5, 2025 17:45 | 15m | 12 | 3 |
Outage episodes by size in 2025: 1 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 Jackson 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 |
|---|---|---|---|---|---|
| West Central Electric Coop Inc - (SD) | 2018 | 3.7 hrs | 1.25 | 1.5 hrs | 1.25 |
| West River Electric Assn Inc | 2024 | 44 min | 0.53 | 44 min | 0.53 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| LaCreek Electric Assn, 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 ÷ 915 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. Jackson County has data for 2018–2025.
Cite this report
MassOutage (massoutage.com), Jackson 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/jackson-county