PowerOutageHistory
AReliability Grade

Swift CountyPower Outage History

20202025 · Minnesota

Top 20% most reliable nationally — infrequent, short outages.

How grades are calculated

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Reliability Rank
Higher percentile = more reliable
Nationwide87th pct
In Minnesota54th pct
Total events
79
Avg duration
4.6 hrs
Longest outage
28 hrs
Customers served
6,168
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Jan 15, 20214 hrs1,985 (32%)Unnamed event
Jun 9, 2020<1 hr1,810 (29%)Unnamed event
Aug 21, 20224 hrs1,373 (22%)Unnamed event
Mar 15, 2025<1 hr1,224 (20%)Blizzard
May 15, 20252 hrs832 (13%)Tornado

Over the 6 years from 2020 to 2025, Swift County recorded 79 distinct power outage events, averaging 4.6 hours per event.

The single worst outage on record in Swift County started January 15, 2021, lasting 4 hours and leaving up to 1,985 customers without power (32% of the county) at its peak.

December has historically been the worst month for outages in Swift County, with 18 events recorded during that month across the dataset.

Based on this history, Swift County earns a Reliability Grade of A, placing it in the 87th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Swift 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 Minnesota

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

CountyGradeNational percentile
Blue Earth CountyA87th
Dakota CountyA87th
Stearns CountyA87th
Wadena CountyA88th
Lyon CountyA88th

Most reliable counties in Minnesota

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

CountyGradeNational percentile
Clearwater CountyA99th
Brown CountyA99th
Jackson CountyA98th

Least reliable counties in Minnesota

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

CountyGradeNational percentile
Cass CountyF16th
Aitkin CountyF18th
Itasca CountyD25th

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 Swift County?

Between 2020 and 2025, Swift County recorded 79 outage events, averaging 4.6 hours each.

What is Swift County's reliability grade?

Swift County has a Reliability Grade of A, in the 87th national percentile.

What was the worst power outage in Swift County?

The worst outage on record started January 15, 2021, lasting 4 hours and affecting up to 1,985 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.