County annual report · FIPS 28017
2025 Chickasaw County, MS Power Outage Report
In 2025, customers in Chickasaw County, MS went without power for an average of 0.2 hours, a total of 2,468 customer-hours (Mississippi average 7.5 hours). That ranks 79th worst of 81 Mississippi counties and 2919th 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 Chickasaw 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 2, 2025 22:15 | April 3, 2025 00:15 | 2h | 333 | 251 |
| 2 | October 19, 2025 15:15 | October 19, 2025 16:45 | 1h 30m | 195 | 196 |
| 3 | August 14, 2025 02:00 | August 14, 2025 03:00 | 1h | 194 | 194 |
| 4 | May 8, 2025 21:30 | May 9, 2025 04:15 | 6h 45m | 193 | 519 |
| 5 | May 23, 2025 15:30 | May 23, 2025 17:15 | 1h 45m | 51 | 86 |
| 6 | December 29, 2025 05:00 | December 29, 2025 07:15 | 2h 15m | 44 | 77 |
| 7 | May 26, 2025 00:00 | May 26, 2025 14:15 | 14h 15m | 40 | 556 |
| 8 | March 19, 2025 15:15 | March 19, 2025 20:00 | 4h 45m | 36 | 103 |
| 9 | May 18, 2025 14:30 | May 18, 2025 21:15 | 6h 45m | 26 | 104 |
| 10 | May 17, 2025 07:15 | May 17, 2025 10:15 | 3h | 25 | 75 |
Outage episodes by size in 2025: 4 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 Chickasaw 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 |
|---|---|---|---|---|---|
| 4-County Electric Power Assn | 2022 | 3.9 hrs | 3.50 | 2.4 hrs | 2.10 |
| Natchez Trace Elec Power Assn | 2021 | 11.2 hrs | - | 5.3 hrs | - |
| City of Okolona | - | - | - | - | - |
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 ÷ 11,632 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. Chickasaw County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Chickasaw 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/chickasaw-county