County annual report · FIPS 19127
2025 Marshall County, IA Power Outage Report
In 2025, customers in Marshall County, IA went without power for an average of 5.2 hours, a total of 84K customer-hours (Iowa average 2.9 hours). That ranks 25th worst of 99 Iowa counties and 1435th 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 Marshall 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 17, 2025 18:00 | March 17, 2025 19:30 | 1h 30m | 5,131 | 1,293 |
| 2 | March 5, 2025 05:45 | March 5, 2025 08:15 | 2h 30m | 2,107 | 4,722 |
| 3 | June 20, 2025 08:45 | June 21, 2025 02:00 | 17h 15m | 1,832 | 6,901 |
| 4 | July 23, 2025 02:30 | July 23, 2025 14:45 | 12h 15m | 1,654 | 3,419 |
| 5 | December 28, 2025 23:00 | December 29, 2025 05:45 | 6h 45m | 1,462 | 4,392 |
| 6 | June 26, 2025 20:30 | June 26, 2025 20:45 | 15m | 1,401 | 350 |
| 7 | April 11, 2025 19:00 | April 14, 2025 11:15 | 2d 16h | 1,186 | 21K |
| 8 | June 12, 2025 01:30 | June 12, 2025 04:00 | 2h 30m | 1,047 | 2,614 |
| 9 | September 1, 2025 15:15 | September 1, 2025 17:00 | 1h 45m | 1,043 | 1,304 |
| 10 | July 30, 2025 05:30 | July 31, 2025 01:00 | 19h 30m | 1,035 | 3,977 |
Outage episodes by size in 2025: 30 reached 100+ customers, 10 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 Marshall 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 |
|---|---|---|---|---|---|
| Consumers Energy Coop - (IA) | 2024 | 8.2 hrs | 1.54 | 1.6 hrs | 1.00 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Midland Power Coop | - | - | - | - | - |
| Grundy County Rural Elec Coop | - | - | - | - | - |
| City of State Center - (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 ÷ 15,945 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. Marshall County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marshall 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/marshall-county