PowerOutageHistory
Reliability Grade
A
Top tier
2020-2025
Minnesota

Mille Lacs CountyPower Outage History

20202025 · Minnesota
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What this grade means

Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.

Takeaway
Low outage risk
Reliability Rank
Fuller bar = more reliable
Nationwide94th pct
In Minnesota#18 of 85
See full Minnesota rankings →
Total events
77
Recorded 2020–2025
Avg duration
3.1 hrs
Per outage event
Longest outage
31 hrs
Single worst event on record
Customers served
17,069
Utility customers in county

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, 2022<1 hr1,878 (11%)Unnamed event
Mar 6, 20212 hrs1,596 (9%)Winter Storm

Was There an Outage on a Specific Date?

Pick a date to see whether a power outage was recorded for Mille Lacs County, Minnesota that day.

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).

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

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.

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.

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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.