County annual report · FIPS 29093
2025 Iron County, MO Power Outage Report
In 2025, customers in Iron County, MO went without power for an average of 46.9 hours, a total of 268K customer-hours (Missouri average 8.9 hours). That ranks 3rd worst of 115 Missouri counties and 94th of 3,000 nationally.
Compared with MO, the US and 2024
Coverage line is EAGLE-I's share of Missouri customers tracked each year.
Biggest outages in Iron 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 | January 5, 2025 09:45 | January 12, 2025 00:45 | 6d 15h | 3,458 | 164K |
| 2 | March 14, 2025 18:30 | March 20, 2025 20:30 | 6d 2h | 1,665 | 47K |
| 3 | August 22, 2025 14:15 | August 22, 2025 16:15 | 2h | 1,009 | 2,018 |
| 4 | September 22, 2025 05:00 | September 22, 2025 14:15 | 9h 15m | 988 | 2,774 |
| 5 | October 18, 2025 20:30 | October 19, 2025 06:15 | 9h 45m | 936 | 2,883 |
| 6 | November 27, 2025 16:15 | November 27, 2025 18:30 | 2h 15m | 925 | 1,873 |
| 7 | August 11, 2025 13:30 | August 11, 2025 17:15 | 3h 45m | 908 | 1,071 |
| 8 | September 22, 2025 17:15 | September 22, 2025 18:00 | 45m | 906 | 680 |
| 9 | September 22, 2025 20:15 | September 23, 2025 09:30 | 13h 15m | 906 | 3,632 |
| 10 | April 4, 2025 23:15 | April 10, 2025 18:30 | 5d 19h | 887 | 7,499 |
Outage episodes by size in 2025: 46 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 Iron 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 |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2024 | 2.5 hrs | 0.77 | 1.6 hrs | 0.67 |
| Black River Electric Coop - (MO) | 2024 | 19.4 hrs | - | 7.5 hrs | - |
| Ameren | - | - | - | - | - |
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 Missouri's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,709 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. Iron County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Iron County, MO 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/missouri/iron-county