Johnson County, Kansas Power Outages, 2015 to 2023

Johnson County, Kansas had 20 major outages from 2015 to 2023

Below middle outage time among US counties

Residents here averaged 0.57 times the US outage time per person and 1.19 times the Kansas rate. It ranks 18 of 59 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.2major outages per year

8 of 9years with a major outage

104 hrslongest major outage

Jul, Junhardest months

July and June made up 61% of this county's outage time. The largest outage on record began Jul 14, 2023, reached 64,696 customers, and left at least 200 customers out for 100.2 hours.

Outage time per resident, rated Kansas counties

MostLeast

Outage impact by year

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

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	448,669	173	2
2016	376,951	190	2
2017	1,843,608	164	4
2018	390,858	170	1
2019	1,377,349	159	4
2020	202,374	158	0
2021	638,178	217	3
2022	399,227	170	2
2023	2,198,925	175	2

When outages hit

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

20%

40%

60%

80%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Jul 14, 2023	100.2	64,696	1,796,161
Jul 23, 2017	74.5	48,945	1,167,203
Jan 12, 2019	104.2	26,850	1,074,530
Jun 17, 2017	79.0	17,011	399,136
Jun 2, 2018	39.5	23,749	185,168

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.