Johnson County power outages

Indiana outage history from 2015 to 2023, with the largest outages and a backup battery estimate.

Johnson County, Indiana had 7 major outages from 2015 to 2023

Lower outage time among US counties

Residents here averaged 0.24 times the US outage time per person and 0.40 times the Indiana rate. It ranks 79 of 90 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

0.8major outages per year
4 of 9years with a major outage
64 hrslongest major outage
Apr, Junhardest months

April and June made up 58% of this county's outage time. The largest outage on record began Apr 1, 2023, reached 7,559 customers, and left at least 200 customers out for 64.0 hours.

Outage time per resident, rated Indiana counties
MostLeast

Outage impact by year

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

0
100K
200K
300K
400K
2015'152016'162017'172018'182019'192020'202021'212022'222023'23
Show yearly numbers
YearCustomer-hoursReported outagesMajor outages
201534,859360
201634,300270
201730,993240
201875,902361
201979,635430
2020136,985272
202193,566391
202290,238300
2023324,601303

When outages hit

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

0%
10%
20%
30%
40%
JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start dateHoursPeak customersCustomer-hours
Apr 1, 202364.07,559211,897
Apr 9, 202022.85,73174,456
Jun 29, 202347.85,94957,998
Oct 20, 201823.83,54530,882
Jun 28, 20226.27,52326,429

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.

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.

Look up another county

Counties ranked nearby

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.