County annual report · FIPS 19183
2025 Washington County, IA Power Outage Report
In 2025, customers in Washington County, IA went without power for an average of 2.1 hours, a total of 21K customer-hours (Iowa average 2.9 hours). That ranks 69th worst of 99 Iowa counties and 2370th 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 Washington 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 21, 2025 10:15 | March 21, 2025 12:00 | 1h 45m | 3,034 | 4,301 |
| 2 | October 25, 2025 13:30 | October 25, 2025 16:15 | 2h 45m | 653 | 1,544 |
| 3 | October 20, 2025 14:15 | October 20, 2025 20:00 | 5h 45m | 643 | 892 |
| 4 | December 25, 2025 21:30 | December 26, 2025 03:15 | 5h 45m | 609 | 2,133 |
| 5 | July 5, 2025 20:45 | July 6, 2025 05:30 | 8h 45m | 523 | 1,103 |
| 6 | February 6, 2025 14:15 | February 6, 2025 15:15 | 1h | 487 | 187 |
| 7 | July 20, 2025 08:45 | July 20, 2025 16:00 | 7h 15m | 352 | 452 |
| 8 | February 26, 2025 15:30 | February 26, 2025 20:30 | 5h | 333 | 173 |
| 9 | June 18, 2025 17:30 | June 18, 2025 21:00 | 3h 30m | 324 | 649 |
| 10 | February 28, 2025 18:30 | February 28, 2025 20:45 | 2h 15m | 312 | 545 |
Outage episodes by size in 2025: 23 reached 100+ customers, 1 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 Washington 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 |
| Eastern Iowa Light & Power Coop | 2024 | 3.7 hrs | 1.29 | 1.6 hrs | 0.90 |
| T I P Rural Electric Coop | 2018 | 2.5 hrs | 1.33 | 2.5 hrs | 1.33 |
| Farmers Electric Coop - (IA) | 2018 | 77 min | 2.30 | 77 min | 2.30 |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Access Energy Coop | - | - | - | - | - |
| Waverly Municipal Elec Utility | - | - | - | - | - |
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 ÷ 9,700 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington 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/washington-county