PowerOutageHistory
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Mille Lacs County Power Outage History

20202025 · Minnesota

Top 20% most reliable nationally — infrequent, short outages. How grades are calculated

Total events
77
Avg duration
3.1 hrs
Longest outage
31 hrs
National percentile
94th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Sep 26, 20202 hrs4,552 (27%)Unnamed event
Apr 17, 20213 hrs4,548 (27%)Unnamed event
Aug 14, 202017 hrs1,910 (11%)Thunderstorm Wind
Jun 21, 20221 hrs1,878 (11%)Unnamed event
Mar 6, 20212 hrs1,596 (9%)Winter Storm

Over the 6 years from 2020 to 2025, Mille Lacs County recorded 77 distinct power outage events, averaging 3.1 hours per event.

The single worst outage on record in Mille Lacs County started September 26, 2020, lasting 2 hours and leaving up to 4,552 customers without power (27% of the county) at its peak.

June has historically been the worst month for outages in Mille Lacs County, with 11 events recorded during that month across the dataset.

Based on this history, Mille Lacs County earns a Reliability Grade of A, placing it in the 94th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Mille Lacs 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 Mille Lacs County.

CountyGradeNational percentile
Douglas CountyA94th
Nicollet CountyA95th
Clay CountyA95th
Olmsted CountyA93rd
McLeod CountyA93rd

FAQ

How often does power go out in Mille Lacs County?

Between 2020 and 2025, Mille Lacs County recorded 77 outage events, averaging 3.1 hours each.

What is Mille Lacs County's reliability grade?

Mille Lacs County has a Reliability Grade of A, in the 94th national percentile.

What was the worst power outage in Mille Lacs County?

The worst outage on record started September 26, 2020, lasting 2 hours and affecting up to 4,552 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.