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 25, 2021 | 14 hrs | 4,201 (25%) | Tornado |
| Jan 5, 2025 | 41 hrs | 3,651 (21%) | Ice Storm |
| Jan 25, 2023 | 19 hrs | 3,498 (20%) | Heavy Snow |
| Aug 4, 2022 | 14 hrs | 2,820 (16%) | Flash Flood |
| Jan 25, 2023 | 49 hrs | 2,057 (12%) | Heavy Snow |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Madison County, Missouri that day.
Over the 10 years from 2016 to 2025, Madison County recorded 594 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Madison County started October 25, 2021 (Tornado), lasting 14 hours and leaving up to 4,201 customers without power (25% of the county) at its peak.
August has historically been the worst month for outages in Madison County, with 71 events recorded during that month across the dataset.
Based on this history, Madison County earns a Reliability Grade of B, placing it in the 60th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Missouri
Counties with the closest reliability grade and national percentile to Madison County.
| County | Grade | National percentile |
|---|---|---|
| New Madrid County | B | 61st |
| Stone County | B | 62nd |
| Henry County | B | 62nd |
| Hickory County | C | 58th |
| Ripley County | B | 63rd |
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 2016 and 2025, Madison County recorded 594 outage events, averaging 2.5 hours each.
What is Madison County's reliability grade?
Madison County has a Reliability Grade of B, in the 60th national percentile.
What was the worst power outage in Madison County?
The worst outage on record started October 25, 2021 (Tornado), lasting 14 hours and affecting up to 4,201 customers.