DeKalb CountyPower Outage History
What this grade means
(How grades are calculated)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 |
|---|---|---|---|
| Mar 7, 2017 | 4 hrs | 1,509 (24%) | Unnamed event |
| Jul 10, 2021 | 13 hrs | 1,318 (21%) | Thunderstorm Wind |
| Jan 9, 2024 | 5 hrs | 1,209 (20%) | Unnamed event |
| Oct 24, 2017 | <1 hr | 1,195 (19%) | Unnamed event |
| Jun 11, 2021 | 6 hrs | 1,151 (19%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for DeKalb County, Missouri that day.
Over the 12 years from 2014 to 2025, DeKalb County recorded 284 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in DeKalb County started March 7, 2017, lasting 4 hours and leaving up to 1,509 customers without power (24% of the county) at its peak.
June has historically been the worst month for outages in DeKalb County, with 43 events recorded during that month across the dataset.
Based on this history, DeKalb County earns a Reliability Grade of C, placing it in the 56th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Missouri
Counties with the closest reliability grade and national percentile to DeKalb County.
| County | Grade | National percentile |
|---|---|---|
| Barton County | C | 56th |
| Gentry County | C | 55th |
| Pemiscot County | C | 55th |
| Stoddard County | C | 55th |
| Carter County | C | 57th |
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 DeKalb County?
Between 2014 and 2025, DeKalb County recorded 284 outage events, averaging 2.9 hours each.
What is DeKalb County's reliability grade?
DeKalb County has a Reliability Grade of C, in the 56th national percentile.
What was the worst power outage in DeKalb County?
The worst outage on record started March 7, 2017, lasting 4 hours and affecting up to 1,509 customers.