Chilton CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 29, 2020 | 115 hrs | 23,217 (87%) | Tropical Storm |
| Aug 18, 2018 | 1 hrs | 13,052 (49%) | Unnamed event |
| Mar 16, 2025 | 25 hrs | 12,281 (46%) | Tornado |
| Feb 16, 2025 | 38 hrs | 7,535 (28%) | Drought |
| Nov 2, 2020 | 67 hrs | 6,930 (26%) | Tropical Storm |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Chilton County, Alabama that day.
Over the 12 years from 2014 to 2025, Chilton County recorded 1,062 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Chilton County started October 29, 2020 (Tropical Storm), lasting 115 hours and leaving up to 23,217 customers without power (87% of the county) at its peak.
July has historically been the worst month for outages in Chilton County, with 135 events recorded during that month across the dataset.
Based on this history, Chilton County earns a Reliability Grade of F, placing it in the 14th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Alabama
Counties with the closest reliability grade and national percentile to Chilton County.
| County | Grade | National percentile |
|---|---|---|
| Perry County | F | 14th |
| Bibb County | F | 14th |
| Lowndes County | F | 15th |
| Butler County | F | 16th |
| Dallas County | F | 11th |
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 Chilton County?
Between 2014 and 2025, Chilton County recorded 1,062 outage events, averaging 2.4 hours each.
What is Chilton County's reliability grade?
Chilton County has a Reliability Grade of F, in the 14th national percentile.
What was the worst power outage in Chilton County?
The worst outage on record started October 29, 2020 (Tropical Storm), lasting 115 hours and affecting up to 23,217 customers.