Posey CountyPower Outage History
What this grade means
Average — typical outage frequency and duration nationally. This county sits in the middle of the national distribution — its outage frequency and duration over the past 12 years are close to the nationwide median, neither notably better nor worse than most other US counties. A typical amount of backup-power preparedness is reasonable here.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 21, 2020 | <1 hr | 7,311 (60%) | Flood |
| May 31, 2018 | 9 hrs | 4,754 (39%) | Unnamed event |
| Jul 1, 2019 | 9 hrs | 3,317 (27%) | Flood |
| Jan 27, 2023 | 6 hrs | 3,073 (25%) | Winter Weather |
| Jan 6, 2025 | 1 hrs | 3,067 (25%) | Winter Storm |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Posey County, Indiana that day.
Over the 11 years from 2015 to 2025, Posey County recorded 530 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Posey County started January 21, 2020 (Flood), lasting less than 1 hour and leaving up to 7,311 customers without power (60% of the county) at its peak.
July has historically been the worst month for outages in Posey County, with 79 events recorded during that month across the dataset.
Based on this history, Posey County earns a Reliability Grade of C, placing it in the 44th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Indiana
Counties with the closest reliability grade and national percentile to Posey County.
| County | Grade | National percentile |
|---|---|---|
| Benton County | C | 44th |
| Morgan County | C | 43rd |
| Marshall County | C | 45th |
| LaGrange County | C | 42nd |
| Knox County | C | 46th |
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 Posey County?
Between 2015 and 2025, Posey County recorded 530 outage events, averaging 2.6 hours each.
What is Posey County's reliability grade?
Posey County has a Reliability Grade of C, in the 44th national percentile.
What was the worst power outage in Posey County?
The worst outage on record started January 21, 2020 (Flood), lasting less than 1 hour and affecting up to 7,311 customers.