Madison CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 28, 2025 | <1 hr | 5,191 (19%) | Unnamed event |
| Oct 4, 2024 | 1 hrs | 5,152 (19%) | Hurricane Helene |
| May 2, 2023 | 2 hrs | 5,151 (19%) | Unnamed event |
| Jan 23, 2024 | 2 hrs | 4,880 (18%) | Unnamed event |
| Mar 10, 2021 | 1 hrs | 4,825 (18%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Madison County, Ohio that day.
Over the 12 years from 2014 to 2025, Madison County recorded 486 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Madison County started October 28, 2025, lasting less than 1 hour and leaving up to 5,191 customers without power (19% of the county) at its peak.
June has historically been the worst month for outages in Madison County, with 58 events recorded during that month across the dataset.
Based on this history, Madison County earns a Reliability Grade of B, placing it in the 74th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Ohio
Counties with the closest reliability grade and national percentile to Madison County.
| County | Grade | National percentile |
|---|---|---|
| Henry County | B | 73rd |
| Miami County | B | 74th |
| Lucas County | B | 74th |
| Medina County | B | 72nd |
| Wyandot County | B | 76th |
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 Madison County?
Between 2014 and 2025, Madison County recorded 486 outage events, averaging 2.2 hours each.
What is Madison County's reliability grade?
Madison County has a Reliability Grade of B, in the 74th national percentile.
What was the worst power outage in Madison County?
The worst outage on record started October 28, 2025, lasting less than 1 hour and affecting up to 5,191 customers.