County annual report · FIPS 28013
2025 Calhoun County, MS Power Outage Report
In 2025, customers in Calhoun County, MS went without power for an average of 0.2 hours, a total of 1,559 customer-hours (Mississippi average 7.5 hours). That ranks 80th worst of 81 Mississippi counties and 2920th 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 Calhoun 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 | July 28, 2025 15:30 | July 28, 2025 22:15 | 6h 45m | 16 | 93 |
| 2 | February 16, 2025 17:00 | February 16, 2025 17:15 | 15m | 15 | 4 |
| 3 | March 15, 2025 05:45 | March 18, 2025 02:15 | 2d 20h | 15 | 1,028 |
| 4 | June 28, 2025 20:45 | June 29, 2025 01:15 | 4h 30m | 15 | 68 |
| 5 | July 1, 2025 14:45 | July 1, 2025 19:30 | 4h 45m | 15 | 71 |
| 6 | August 15, 2025 20:00 | August 15, 2025 21:30 | 1h 30m | 15 | 23 |
| 7 | September 22, 2025 03:30 | September 22, 2025 06:30 | 3h | 15 | 45 |
| 8 | September 24, 2025 12:30 | September 24, 2025 17:00 | 4h 30m | 15 | 68 |
| 9 | December 19, 2025 00:30 | December 19, 2025 01:15 | 45m | 14 | 11 |
| 10 | December 19, 2025 04:00 | December 19, 2025 04:15 | 15m | 14 | 4 |
Outage episodes by size in 2025: 0 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 Calhoun 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 |
| Natchez Trace Elec Power Assn | 2021 | 11.2 hrs | - | 5.3 hrs | - |
| Pontotoc Electric Power Assn | - | - | - | - | - |
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 ÷ 7,468 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. Calhoun County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Calhoun 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/calhoun-county