DeKalb CountyPower Outage History
2014–2025 · Missouri
Average — typical outage frequency and duration nationally.
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 |
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).
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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 in Missouri
The top 3 counties in Missouri by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Mercer County | A | 98th |
| McDonald County | A | 97th |
| Boone County | A | 97th |
Least reliable counties in Missouri
The bottom 3 counties in Missouri by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| St. Louis County | F | 10th |
| Reynolds County | F | 20th |
| Iron County | D | 22nd |
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.