PowerOutageHistory
B

Carroll County Power Outage History

20142025 · Indiana

Better than average — fewer or shorter outages than most counties. How grades are calculated

Total events
262
Avg duration
3.6 hrs
Longest outage
34 hrs
National percentile
68th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Aug 10, 202034 hrs2,767 (26%)Thunderstorm Wind
Nov 15, 20208 hrs1,948 (19%)Unnamed event
Jun 18, 20202 hrs1,932 (18%)Unnamed event
Jun 23, 20165 hrs1,913 (18%)Thunderstorm Wind
Oct 22, 20201 hrs1,856 (18%)Unnamed event

Over the 12 years from 2014 to 2025, Carroll County recorded 262 distinct power outage events, averaging 3.6 hours per event.

The single worst outage on record in Carroll County started August 10, 2020 (Thunderstorm Wind), lasting 34 hours and leaving up to 2,767 customers without power (26% of the county) at its peak.

June has historically been the worst month for outages in Carroll County, with 37 events recorded during that month across the dataset.

Based on this history, Carroll County earns a Reliability Grade of B, placing it in the 68th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Carroll County's outage profile

See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.

Outage-prep kit

See our outage-prep guides.

Similar counties in Indiana

Counties with the closest reliability grade and national percentile to Carroll County.

CountyGradeNational percentile
Clark CountyB69th
Fayette CountyB68th
Grant CountyB70th
Ripley CountyB66th
Delaware CountyB66th

FAQ

How often does power go out in Carroll County?

Between 2014 and 2025, Carroll County recorded 262 outage events, averaging 3.6 hours each.

What is Carroll County's reliability grade?

Carroll County has a Reliability Grade of B, in the 68th national percentile.

What was the worst power outage in Carroll County?

The worst outage on record started August 10, 2020 (Thunderstorm Wind), lasting 34 hours and affecting up to 2,767 customers.

Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.