County annual report · FIPS 28053
2021 Humphreys County, MS Power Outage Report
In 2021, customers in Humphreys County, MS went without power for an average of 10.4 hours, a total of 35K customer-hours (Mississippi average 17.2 hours). That ranks 38th worst of 78 Mississippi counties and 760th 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 Humphreys 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 | December 2, 2021 14:15 | December 2, 2021 15:15 | 1h | 1,711 | 1,283 |
| 2 | February 17, 2021 23:15 | February 20, 2021 02:00 | 2d 2h | 684 | 14K |
| 3 | June 9, 2021 22:00 | June 10, 2021 04:30 | 6h 30m | 592 | 1,050 |
| 4 | December 23, 2021 06:45 | December 23, 2021 17:00 | 10h 15m | 377 | 1,802 |
| 5 | April 24, 2021 10:45 | April 26, 2021 20:15 | 2d 9h | 309 | 3,418 |
| 6 | December 7, 2021 03:30 | December 7, 2021 11:00 | 7h 30m | 306 | 2,295 |
| 7 | March 3, 2021 18:30 | March 4, 2021 02:15 | 7h 45m | 279 | 1,050 |
| 8 | August 16, 2021 16:15 | August 17, 2021 07:15 | 15h | 256 | 2,233 |
| 9 | November 6, 2021 04:15 | November 6, 2021 10:30 | 6h 15m | 224 | 452 |
| 10 | May 4, 2021 19:15 | May 6, 2021 01:00 | 1d 5h | 145 | 2,074 |
Outage episodes by size in 2021: 12 reached 100+ customers, 1 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 Humphreys 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 |
| Twin County Electric Pwr Assn | 2018 | 8.2 hrs | - | 4.2 hrs | - |
| Yazoo Valley Elec 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 77% of Mississippi's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,331 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. Humphreys County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Humphreys 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/humphreys-county