Jefferson County, Mississippi Power Outages, 2015 to 2023

Jefferson County, Mississippi had 26 major outages from 2015 to 2023

Higher outage time among US counties

Residents here averaged 7.38 times the US outage time per person and 4.88 times the Mississippi rate. It ranks 2 of 72 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.9major outages per year

7 of 9years with a major outage

135 hrslongest major outage

Feb, Octhardest months

February and October made up 60% of this county's outage time. The largest outage on record began Feb 18, 2021, reached 3,763 customers, and left at least 200 customers out for 88.8 hours.

Outage time per resident, rated Mississippi counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

200K

400K

600K

800K

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	52,702	11	3
2016	1,972	4	0
2017	38,561	9	1
2018	3,057	8	0
2019	71,792	15	3
2020	255,391	48	3
2021	507,565	36	7
2022	92,176	39	5
2023	97,031	36	4

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Feb 18, 2021	88.8	3,763	268,768
Oct 10, 2020	134.8	4,396	188,856
Feb 17, 2021	19.2	4,393	69,568
Feb 22, 2021	34.0	2,057	50,423
Feb 23, 2021	77.5	1,178	49,943

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.