County annual report · FIPS 19035
2025 Cherokee County, IA Power Outage Report
In 2025, customers in Cherokee County, IA went without power for an average of 6.2 hours, a total of 37K customer-hours (Iowa average 2.9 hours). That ranks 21st worst of 99 Iowa counties and 1260th 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 Cherokee 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 12:15 | March 19, 2025 18:45 | 6h 30m | 3,081 | 8,710 |
| 2 | June 16, 2025 23:00 | June 17, 2025 07:30 | 8h 30m | 1,889 | 7,212 |
| 3 | July 29, 2025 03:15 | July 30, 2025 20:30 | 1d 17h | 1,538 | 8,304 |
| 4 | July 11, 2025 12:45 | July 11, 2025 17:00 | 4h 15m | 1,347 | 2,883 |
| 5 | February 18, 2025 14:30 | February 18, 2025 17:15 | 2h 45m | 865 | 1,867 |
| 6 | March 5, 2025 01:45 | March 5, 2025 10:00 | 8h 15m | 573 | 1,886 |
| 7 | June 29, 2025 09:45 | June 29, 2025 21:00 | 11h 15m | 570 | 898 |
| 8 | April 14, 2025 09:15 | April 14, 2025 10:45 | 1h 30m | 357 | 536 |
| 9 | September 14, 2025 12:45 | September 14, 2025 15:45 | 3h | 198 | 594 |
| 10 | March 1, 2025 00:45 | March 1, 2025 02:30 | 1h 45m | 189 | 284 |
Outage episodes by size in 2025: 13 reached 100+ customers, 4 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 Cherokee 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 |
| Iowa Lakes Electric Coop | 2024 | 45 min | 0.48 | 45 min | 0.48 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| North West Rural Electric Coop | - | - | - | - | - |
| Woodbury County Rural E C A | - | - | - | - | - |
| City of Aurelia - (IA) | - | - | - | - | - |
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 ÷ 5,968 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. Cherokee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cherokee 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/cherokee-county