County annual report · FIPS 28097
2025 Montgomery County, MS Power Outage Report
In 2025, customers in Montgomery County, MS went without power for an average of 12.6 hours, a total of 54K customer-hours (Mississippi average 7.5 hours). That ranks 22nd worst of 81 Mississippi counties and 617th of 3,000 nationally.
Compared with MS, the US and 2024
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Montgomery 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 | April 5, 2025 17:00 | April 5, 2025 19:15 | 2h 15m | 835 | 1,253 |
| 2 | August 21, 2025 13:15 | August 21, 2025 13:45 | 30m | 777 | 389 |
| 3 | August 15, 2025 17:30 | August 15, 2025 23:30 | 6h | 589 | 1,087 |
| 4 | March 15, 2025 05:45 | March 18, 2025 01:15 | 2d 19h | 583 | 26K |
| 5 | May 24, 2025 20:45 | May 25, 2025 05:15 | 8h 30m | 566 | 2,466 |
| 6 | May 25, 2025 22:45 | May 29, 2025 00:30 | 3d 1h | 369 | 4,609 |
| 7 | June 12, 2025 23:30 | June 13, 2025 22:15 | 22h 45m | 239 | 2,284 |
| 8 | March 24, 2025 01:00 | March 24, 2025 07:30 | 6h 30m | 186 | 576 |
| 9 | March 10, 2025 20:15 | March 10, 2025 21:00 | 45m | 159 | 119 |
| 10 | March 14, 2025 21:00 | March 14, 2025 22:15 | 1h 15m | 134 | 163 |
Outage episodes by size in 2025: 17 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 Montgomery 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 |
|---|---|---|---|---|---|
| Entergy Mississippi LLC | 2024 | 11.5 hrs | 2.31 | 5.5 hrs | 1.75 |
| Delta Electric Power Assn | 2024 | 12.0 hrs | 5.07 | 7.0 hrs | 4.11 |
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 Mississippi's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,275 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery County, MS 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/mississippi/montgomery-county