County annual report · FIPS 28151
2025 Washington County, MS Power Outage Report
In 2025, customers in Washington County, MS went without power for an average of 4.9 hours, a total of 122K customer-hours (Mississippi average 7.5 hours). That ranks 55th worst of 81 Mississippi counties and 1530th 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 Washington 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 | October 13, 2025 00:30 | October 13, 2025 02:45 | 2h 15m | 2,543 | 5,719 |
| 2 | August 20, 2025 01:15 | August 22, 2025 01:45 | 2d | 1,531 | 11K |
| 3 | April 11, 2025 19:15 | June 16, 2025 14:15 | 65d 19h | 1,470 | 45K |
| 4 | November 11, 2025 14:15 | November 12, 2025 00:30 | 10h 15m | 1,308 | 1,019 |
| 5 | February 4, 2025 20:45 | February 5, 2025 02:00 | 5h 15m | 841 | 2,351 |
| 6 | June 17, 2025 11:15 | June 17, 2025 21:00 | 9h 45m | 691 | 1,542 |
| 7 | December 23, 2025 10:15 | December 23, 2025 18:00 | 7h 45m | 689 | 3,127 |
| 8 | July 29, 2025 13:45 | July 30, 2025 02:15 | 12h 30m | 675 | 1,570 |
| 9 | September 4, 2025 00:30 | September 4, 2025 04:45 | 4h 15m | 571 | 1,167 |
| 10 | October 29, 2025 05:15 | October 30, 2025 00:00 | 18h 45m | 504 | 4,269 |
Outage episodes by size in 2025: 52 reached 100+ customers, 4 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 Washington 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 |
| Twin County Electric Pwr Assn | 2018 | 8.2 hrs | - | 4.2 hrs | - |
| City of Leland - (MS) | - | - | - | - | - |
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 ÷ 25,115 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington 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/washington-county