PowerOutageHistory
CReliability Grade

Cumberland CountyPower Outage History

20142025 · Kentucky

Average — typical outage frequency and duration nationally.

How grades are calculated

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Reliability Rank
Higher percentile = more reliable
Nationwide47th pct
In Kentucky62nd pct
Total events
608
Avg duration
1.5 hrs
Longest outage
45 hrs
Customers served
4,961
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Jan 22, 20251 hrs4,668 (94%)Unnamed event
Jun 12, 2021<1 hr4,528 (91%)Unnamed event
Oct 25, 20203 hrs4,461 (90%)Unnamed event
Oct 18, 20204 hrs4,457 (90%)Unnamed event
Nov 1, 20203 hrs4,457 (90%)Unnamed event

Over the 12 years from 2014 to 2025, Cumberland County recorded 608 distinct power outage events, averaging 1.5 hours per event.

The single worst outage on record in Cumberland County started January 22, 2025, lasting 1 hours and leaving up to 4,668 customers without power (94% of the county) at its peak.

June has historically been the worst month for outages in Cumberland County, with 82 events recorded during that month across the dataset.

Based on this history, Cumberland County earns a Reliability Grade of C, placing it in the 47th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Cumberland County's outage profile

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Outage-prep kit

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Similar counties in Kentucky

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

CountyGradeNational percentile
Christian CountyC47th
Laurel CountyC47th
Jefferson CountyC48th
Knox CountyC48th
Caldwell CountyC48th

Most reliable counties in Kentucky

The top 3 counties in Kentucky by reliability grade and percentile.

CountyGradeNational percentile
Taylor CountyA96th
Webster CountyA92nd
Green CountyA91st

Least reliable counties in Kentucky

The bottom 3 counties in Kentucky by reliability grade and percentile.

CountyGradeNational percentile
Leslie CountyF0th
Lawrence CountyF1st
Knott CountyF2nd

Most reliable counties nationally

The top 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountySouth DakotaA100th
Clearwater CountyMinnesotaA99th
Limestone CountyAlabamaA99th

Least reliable counties nationally

The bottom 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountyWest VirginiaF0th
Lincoln CountyWest VirginiaF0th
Cameron ParishLouisianaF0th

FAQ

How often does power go out in Cumberland County?

Between 2014 and 2025, Cumberland County recorded 608 outage events, averaging 1.5 hours each.

What is Cumberland County's reliability grade?

Cumberland County has a Reliability Grade of C, in the 47th national percentile.

What was the worst power outage in Cumberland County?

The worst outage on record started January 22, 2025, lasting 1 hours and affecting up to 4,668 customers.

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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.