County annual report · FIPS 19149
2025 Plymouth County, IA Power Outage Report
In 2025, customers in Plymouth County, IA went without power for an average of 3.3 hours, a total of 28K customer-hours (Iowa average 2.9 hours). That ranks 46th worst of 99 Iowa counties and 1961st 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 Plymouth 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 | June 29, 2025 09:15 | June 30, 2025 00:00 | 14h 45m | 2,099 | 7,290 |
| 2 | March 19, 2025 11:30 | March 20, 2025 09:00 | 21h 30m | 1,127 | 2,036 |
| 3 | July 21, 2025 16:30 | July 21, 2025 19:00 | 2h 30m | 1,111 | 871 |
| 4 | March 29, 2025 22:00 | March 30, 2025 02:30 | 4h 30m | 828 | 621 |
| 5 | July 30, 2025 03:00 | July 30, 2025 19:30 | 16h 30m | 705 | 5,554 |
| 6 | October 5, 2025 02:15 | October 6, 2025 13:00 | 1d 10h | 703 | 1,469 |
| 7 | March 5, 2025 03:00 | March 5, 2025 13:30 | 10h 30m | 490 | 987 |
| 8 | June 20, 2025 23:30 | June 23, 2025 15:30 | 2d 16h | 476 | 1,623 |
| 9 | October 3, 2025 18:45 | October 3, 2025 19:30 | 45m | 316 | 237 |
| 10 | August 19, 2025 00:15 | August 19, 2025 03:30 | 3h 15m | 311 | 1,011 |
Outage episodes by size in 2025: 16 reached 100+ customers, 3 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 Plymouth 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 | - | - | - | - | - |
| North West Rural Electric Coop | - | - | - | - | - |
| Woodbury County Rural E C A | - | - | - | - | - |
| City of Akron - (IA) | - | - | - | - | - |
| City of Hinton | - | - | - | - | - |
| City of Remsen - (IA) | - | - | - | - | - |
| Town of Westfield - (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 ÷ 8,581 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. Plymouth County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Plymouth 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/plymouth-county