Monroe CountyPower Outage History
2015–2025 · Iowa
Worse than average — more frequent or longer outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 15, 2016 | 2 hrs | 2,829 (59%) | Unnamed event |
| Jun 6, 2017 | 26 hrs | 1,928 (40%) | Unnamed event |
| Jul 3, 2024 | <1 hr | 1,652 (34%) | Unnamed event |
| Mar 28, 2017 | <1 hr | 1,517 (31%) | Unnamed event |
| Mar 22, 2017 | 2 hrs | 1,384 (29%) | Unnamed event |
Over the 11 years from 2015 to 2025, Monroe County recorded 908 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Monroe County started March 15, 2016, lasting 2 hours and leaving up to 2,829 customers without power (59% of the county) at its peak.
July has historically been the worst month for outages in Monroe County, with 115 events recorded during that month across the dataset.
Based on this history, Monroe County earns a Reliability Grade of D, placing it in the 21st percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Monroe County.
| County | Grade | National percentile |
|---|---|---|
| Greene County | D | 20th |
| Cedar County | D | 22nd |
| Clinton County | D | 23rd |
| Benton County | F | 18th |
| Linn County | F | 16th |
Most reliable counties in Iowa
The top 3 counties in Iowa by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Clay County | A | 97th |
| Emmet County | A | 95th |
| Bremer County | A | 94th |
Least reliable counties in Iowa
The bottom 3 counties in Iowa by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Marshall County | F | 6th |
| Tama County | F | 12th |
| Jasper County | F | 14th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Monroe County?
Between 2015 and 2025, Monroe County recorded 908 outage events, averaging 3.0 hours each.
What is Monroe County's reliability grade?
Monroe County has a Reliability Grade of D, in the 21st national percentile.
What was the worst power outage in Monroe County?
The worst outage on record started March 15, 2016, lasting 2 hours and affecting up to 2,829 customers.