Ottawa 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 |
|---|---|---|---|
| Jul 8, 2023 | 3 hrs | 23,967 (71%) | Unnamed event |
| Dec 14, 2021 | <1 hr | 23,351 (70%) | High Wind |
| Jun 10, 2020 | 51 hrs | 14,543 (43%) | Tropical Storm Cristobal |
| Oct 13, 2017 | 2 hrs | 10,668 (32%) | Unnamed event |
| Feb 6, 2021 | 4 hrs | 10,667 (32%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Ottawa County, Ohio that day.
Over the 12 years from 2014 to 2025, Ottawa County recorded 591 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Ottawa County started July 8, 2023, lasting 3 hours and leaving up to 23,967 customers without power (71% of the county) at its peak.
July has historically been the worst month for outages in Ottawa County, with 90 events recorded during that month across the dataset.
Based on this history, Ottawa County earns a Reliability Grade of C, placing it in the 52nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Ohio
Counties with the closest reliability grade and national percentile to Ottawa County.
| County | Grade | National percentile |
|---|---|---|
| Richland County | C | 53rd |
| Franklin County | C | 53rd |
| Fayette County | C | 50th |
| Ashland County | C | 49th |
| Muskingum County | C | 54th |
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 Ottawa County?
Between 2014 and 2025, Ottawa County recorded 591 outage events, averaging 2.7 hours each.
What is Ottawa County's reliability grade?
Ottawa County has a Reliability Grade of C, in the 52nd national percentile.
What was the worst power outage in Ottawa County?
The worst outage on record started July 8, 2023, lasting 3 hours and affecting up to 23,967 customers.