County annual report · FIPS 19167
2024 Sioux County, IA Power Outage Report
In 2024, customers in Sioux County, IA went without power for an average of 3.2 hours, a total of 54K customer-hours (Iowa average 3.2 hours). That ranks 49th worst of 99 Iowa counties and 2045th of 2,990 nationally.
Compared with IA, the US and 2023
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Sioux County, 2024
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 11, 2024 18:45 | July 11, 2024 20:00 | 1h 15m | 3,265 | 2,460 |
| 2 | June 22, 2024 03:45 | June 25, 2024 20:00 | 3d 16h | 2,020 | 40K |
| 3 | November 29, 2024 00:15 | November 29, 2024 06:00 | 5h 45m | 730 | 2,495 |
| 4 | September 29, 2024 05:15 | September 29, 2024 06:00 | 45m | 580 | 341 |
| 5 | May 7, 2024 01:15 | May 7, 2024 04:30 | 3h 15m | 497 | 865 |
| 6 | June 9, 2024 23:15 | June 9, 2024 23:30 | 15m | 410 | 103 |
| 7 | August 26, 2024 19:45 | August 26, 2024 20:30 | 45m | 397 | 296 |
| 8 | June 10, 2024 19:45 | June 10, 2024 23:45 | 4h | 388 | 225 |
| 9 | June 3, 2024 03:30 | June 3, 2024 05:45 | 2h 15m | 362 | 815 |
| 10 | April 19, 2024 17:30 | April 19, 2024 17:45 | 15m | 355 | 89 |
Outage episodes by size in 2024: 22 reached 100+ customers, 2 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 Sioux County reported on EIA Form 861 for 2024, 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2024 | 5.5 hrs | 1.42 | 1.7 hrs | 0.94 |
| Lyon Rural Electric Coop | 2018 | 34 min | 0.38 | 34 min | 0.38 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| North West Rural Electric Coop | - | - | - | - | - |
| City of Alton | - | - | - | - | - |
| City of Hawarden - (IA) | - | - | - | - | - |
| City of Orange City - (IA) | - | - | - | - | - |
| City of Sioux Center | - | - | - | - | - |
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 ÷ 16,993 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. Sioux County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sioux 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/sioux-county