Chickasaw CountyPower Outage History
What this grade means
Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 22, 2022 | <1 hr | 1,854 (21%) | Hail |
| Jun 21, 2022 | 2 hrs | 1,735 (20%) | Hail |
| Jul 9, 2020 | 2 hrs | 1,439 (16%) | Thunderstorm Wind |
| Jul 19, 2017 | 26 hrs | 1,401 (16%) | Thunderstorm Wind |
| May 21, 2024 | 18 hrs | 1,286 (15%) | Drought |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Chickasaw County, Iowa that day.
Over the 11 years from 2015 to 2025, Chickasaw County recorded 203 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in Chickasaw County started June 22, 2022 (Hail), lasting less than 1 hour and leaving up to 1,854 customers without power (21% of the county) at its peak.
June has historically been the worst month for outages in Chickasaw County, with 35 events recorded during that month across the dataset.
Based on this history, Chickasaw County earns a Reliability Grade of A, placing it in the 85th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Chickasaw County.
| County | Grade | National percentile |
|---|---|---|
| Dickinson County | A | 85th |
| Buchanan County | A | 84th |
| Kossuth County | A | 86th |
| Sioux County | A | 86th |
| Palo Alto County | A | 86th |
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 Chickasaw County?
Between 2015 and 2025, Chickasaw County recorded 203 outage events, averaging 3.2 hours each.
What is Chickasaw County's reliability grade?
Chickasaw County has a Reliability Grade of A, in the 85th national percentile.
What was the worst power outage in Chickasaw County?
The worst outage on record started June 22, 2022 (Hail), lasting less than 1 hour and affecting up to 1,854 customers.