County annual report · FIPS 19027
2025 Carroll County, IA Power Outage Report
In 2025, customers in Carroll County, IA went without power for an average of 3.8 hours, a total of 33K customer-hours (Iowa average 2.9 hours). That ranks 39th worst of 99 Iowa counties and 1809th of 3,000 nationally.
Compared with IA, the US and 2024
Coverage line is EAGLE-I's share of Iowa customers tracked each year.
Biggest outages in Carroll 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 | March 19, 2025 15:00 | March 20, 2025 20:30 | 1d 5h | 3,079 | 20K |
| 2 | December 10, 2025 08:30 | December 10, 2025 10:45 | 2h 15m | 1,466 | 1,475 |
| 3 | March 14, 2025 23:00 | March 15, 2025 05:45 | 6h 45m | 617 | 2,526 |
| 4 | March 5, 2025 02:30 | March 5, 2025 22:30 | 20h | 547 | 4,157 |
| 5 | August 18, 2025 10:30 | August 18, 2025 17:00 | 6h 30m | 518 | 705 |
| 6 | October 28, 2025 20:15 | October 28, 2025 21:15 | 1h | 282 | 229 |
| 7 | July 13, 2025 14:00 | July 13, 2025 16:15 | 2h 15m | 276 | 459 |
| 8 | June 15, 2025 13:15 | June 15, 2025 18:30 | 5h 15m | 238 | 585 |
| 9 | August 6, 2025 11:00 | August 6, 2025 11:15 | 15m | 213 | 53 |
| 10 | April 29, 2025 01:15 | April 29, 2025 02:45 | 1h 30m | 209 | 264 |
Outage episodes by size in 2025: 12 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 Carroll 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 |
|---|---|---|---|---|---|
| MidAmerican Energy Co | 2024 | 5.5 hrs | 1.42 | 1.7 hrs | 0.94 |
| Western Iowa Power Coop | 2018 | 47 min | 0.76 | 47 min | 0.76 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Raccoon Valley Electric Cooperative | - | - | - | - | - |
| City of Coon Rapids | - | - | - | - | - |
| City of Breda - (IA) | - | - | - | - | - |
| City of Glidden - (IA) | - | - | - | - | - |
| City of Manning | - | - | - | - | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,666 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. Carroll County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Carroll County, IA 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/iowa/carroll-county