Ionia County Power Outage History
2014–2025 · Michigan
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 6, 2019 | 135 hrs | 14,143 (40%) | Ice Storm |
| Aug 25, 2023 | 102 hrs | 12,623 (36%) | Thunderstorm Wind |
| Mar 9, 2017 | 21 hrs | 10,361 (29%) | High Wind |
| May 10, 2018 | 8 hrs | 5,887 (17%) | Unnamed event |
| Aug 27, 2024 | 61 hrs | 5,849 (17%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Ionia County recorded 540 distinct power outage events, averaging 5.4 hours per event.
The single worst outage on record in Ionia County started February 6, 2019 (Ice Storm), lasting 135 hours and leaving up to 14,143 customers without power (40% of the county) at its peak.
July has historically been the worst month for outages in Ionia County, with 73 events recorded during that month across the dataset.
Based on this history, Ionia County earns a Reliability Grade of F, placing it in the 12th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Ionia County's outage profile
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Similar counties in Michigan
Counties with the closest reliability grade and national percentile to Ionia County.
| County | Grade | National percentile |
|---|---|---|
| Branch County | F | 13th |
| Oakland County | F | 11th |
| Leelanau County | F | 13th |
| Washtenaw County | F | 11th |
| Berrien County | F | 11th |
FAQ
How often does power go out in Ionia County?
Between 2014 and 2025, Ionia County recorded 540 outage events, averaging 5.4 hours each.
What is Ionia County's reliability grade?
Ionia County has a Reliability Grade of F, in the 12th national percentile.
What was the worst power outage in Ionia County?
The worst outage on record started February 6, 2019 (Ice Storm), lasting 135 hours and affecting up to 14,143 customers.