County annual report · FIPS 19175
2025 Union County, IA Power Outage Report
In 2025, customers in Union County, IA went without power for an average of 1.9 hours, a total of 13K customer-hours (Iowa average 2.9 hours). That ranks 79th worst of 99 Iowa counties and 2450th 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 Union 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 3, 2025 16:45 | March 3, 2025 17:15 | 30m | 888 | 222 |
| 2 | March 5, 2025 02:30 | March 5, 2025 23:45 | 21h 15m | 683 | 5,498 |
| 3 | October 27, 2025 13:45 | October 27, 2025 16:45 | 3h | 468 | 211 |
| 4 | June 26, 2025 21:00 | June 27, 2025 00:30 | 3h 30m | 428 | 646 |
| 5 | February 26, 2025 16:45 | February 26, 2025 20:45 | 4h | 389 | 320 |
| 6 | June 23, 2025 23:15 | June 24, 2025 04:30 | 5h 15m | 207 | 342 |
| 7 | May 16, 2025 22:30 | May 17, 2025 00:45 | 2h 15m | 172 | 83 |
| 8 | June 25, 2025 19:00 | June 25, 2025 19:15 | 15m | 170 | 43 |
| 9 | July 24, 2025 10:30 | July 24, 2025 16:30 | 6h | 136 | 66 |
| 10 | March 14, 2025 22:00 | March 15, 2025 02:30 | 4h 30m | 111 | 172 |
Outage episodes by size in 2025: 11 reached 100+ customers, 0 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 Union 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 |
|---|---|---|---|---|---|
| Southwest Iowa Rural Elec Coop | 2018 | 2.4 hrs | 1.69 | 1.6 hrs | 1.21 |
| Farmers Electric Coop, Inc - (IA) | 2018 | 5.9 hrs | 1.44 | 2.1 hrs | 1.26 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Interstate Power and Light Co | - | - | - | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Clarke Electric Coop Inc - (IA) | - | - | - | - | - |
| City of Afton- (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 ÷ 6,645 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. Union County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Union 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/union-county