County annual report · FIPS 28007
2021 Attala County, MS Power Outage Report
In 2021, customers in Attala County, MS went without power for an average of 52.5 hours, a total of 493K customer-hours (Mississippi average 17.2 hours). That ranks 12th worst of 78 Mississippi counties and 172nd of 2,974 nationally.
Compared with MS, the US and 2020
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Attala County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 17, 2021 23:00 | February 23, 2021 23:00 | 6d | 7,584 | 362K |
| 2 | September 1, 2021 18:30 | September 5, 2021 12:45 | 3d 18h | 2,165 | 29K |
| 3 | March 17, 2021 23:30 | March 19, 2021 23:30 | 2d | 1,652 | 21K |
| 4 | April 10, 2021 01:00 | April 10, 2021 21:15 | 20h 15m | 1,594 | 4,689 |
| 5 | June 13, 2021 21:30 | June 15, 2021 02:30 | 1d 5h | 1,581 | 6,816 |
| 6 | May 4, 2021 15:15 | May 6, 2021 22:15 | 2d 7h | 993 | 9,037 |
| 7 | June 10, 2021 10:00 | June 10, 2021 23:30 | 13h 30m | 969 | 1,058 |
| 8 | September 28, 2021 12:45 | September 28, 2021 16:15 | 3h 30m | 933 | 876 |
| 9 | October 16, 2021 03:45 | October 16, 2021 05:45 | 2h | 878 | 489 |
| 10 | November 24, 2021 16:15 | November 24, 2021 19:15 | 3h | 790 | 810 |
Outage episodes by size in 2021: 53 reached 100+ customers, 5 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 Attala County reported on EIA Form 861 for 2021, 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 | 2021 | 22.9 hrs | 2.44 | 4.7 hrs | 1.50 |
| Delta Electric Power Assn | 2021 | 64.6 hrs | 4.93 | 7.6 hrs | 4.19 |
| East Mississippi Elec Pwr Assn | 2021 | 58 min | 3.40 | 3 min | 1.53 |
| Central Electric Power Assn - (MS) | - | - | - | - | - |
| City of Kosciusko - (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 77% of Mississippi's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,398 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. Attala County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Attala County, MS annual power outage report, 2021, 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/2021/mississippi/attala-county