County annual report · FIPS 19195
2025 Worth County, IA Power Outage Report
In 2025, customers in Worth County, IA went without power for an average of 12.6 hours, a total of 29K customer-hours (Iowa average 2.9 hours). That ranks 6th worst of 99 Iowa counties and 614th 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 Worth 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 15, 2025 01:00 | March 15, 2025 07:15 | 6h 15m | 1,847 | 3,738 |
| 2 | May 6, 2025 08:30 | May 6, 2025 12:00 | 3h 30m | 1,696 | 5,467 |
| 3 | August 3, 2025 00:15 | August 4, 2025 21:45 | 1d 21h | 420 | 460 |
| 4 | July 28, 2025 04:00 | July 30, 2025 15:00 | 2d 11h | 375 | 6,271 |
| 5 | August 6, 2025 12:15 | August 6, 2025 15:00 | 2h 45m | 366 | 244 |
| 6 | March 28, 2025 09:15 | March 28, 2025 23:45 | 14h 30m | 336 | 1,231 |
| 7 | February 28, 2025 19:15 | March 1, 2025 00:00 | 4h 45m | 290 | 941 |
| 8 | March 5, 2025 04:15 | March 6, 2025 19:30 | 1d 15h | 216 | 2,661 |
| 9 | March 19, 2025 12:15 | March 19, 2025 23:00 | 10h 45m | 156 | 375 |
| 10 | May 15, 2025 18:30 | May 17, 2025 09:15 | 1d 14h | 142 | 544 |
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 Worth 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 |
|---|---|---|---|---|---|
| Heartland Power Coop | 2024 | 65 min | 0.73 | 61 min | 0.71 |
| Freeborn Mower Electric Cooperative | 2024 | 86 min | 0.74 | 50 min | 0.47 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Prairie Energy Coop | - | - | - | - | - |
| Grafton Electric - (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 ÷ 2,289 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. Worth County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Worth 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/worth-county