County annual report · FIPS 28065
2020 Jefferson Davis County, MS Power Outage Report
In 2020, customers in Jefferson Davis County, MS went without power for an average of 30.5 hours, a total of 167K customer-hours (Mississippi average 18.5 hours). That ranks 19th worst of 79 Mississippi counties and 272nd of 3,019 nationally.
Compared with MS, the US and 2019
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Jefferson Davis County, 2020
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 23, 2020 04:00 | April 26, 2020 05:00 | 3d 1h | 2,777 | 40K |
| 2 | August 17, 2020 00:00 | August 18, 2020 00:45 | 1d | 2,766 | 17K |
| 3 | April 13, 2020 17:30 | April 14, 2020 16:30 | 23h | 2,746 | 23K |
| 4 | July 15, 2020 21:15 | July 16, 2020 02:15 | 5h | 2,030 | 1,242 |
| 5 | March 4, 2020 10:45 | March 5, 2020 04:45 | 18h | 971 | 3,460 |
| 6 | August 11, 2020 15:30 | August 11, 2020 20:00 | 4h 30m | 906 | 253 |
| 7 | June 4, 2020 10:30 | June 4, 2020 12:15 | 1h 45m | 900 | 1,012 |
| 8 | January 21, 2020 17:15 | January 21, 2020 19:45 | 2h 30m | 894 | 1,648 |
| 9 | February 7, 2020 04:15 | February 7, 2020 11:15 | 7h | 891 | 1,293 |
| 10 | June 22, 2020 20:45 | June 22, 2020 22:15 | 1h 30m | 871 | 872 |
Outage episodes by size in 2020: 36 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 Jefferson Davis County reported on EIA Form 861 for 2020, 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 | 2020 | 16.7 hrs | 2.28 | 3.8 hrs | 1.38 |
| Mississippi Power Co | 2020 | 29.7 hrs | 1.95 | 87 min | 0.95 |
| Pearl River Valley El Pwr Assn | 2020 | 15.8 hrs | 2.79 | 3.3 hrs | 1.98 |
| Southern Pine Electric Cooperative | - | - | - | - | - |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,468 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. Jefferson Davis County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson Davis County, MS annual power outage report, 2020, 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/2020/mississippi/jefferson-davis-county