Wicomico County Power Outage History
2015–2025 · Maryland
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 29, 2025 | 3 hrs | 25,129 (37%) | Unnamed event |
| Mar 2, 2018 | 12 hrs | 17,135 (25%) | High Wind |
| Aug 4, 2020 | 31 hrs | 14,712 (21%) | Tropical Storm Isaias |
| May 2, 2018 | 2 hrs | 8,449 (12%) | Unnamed event |
| Apr 21, 2017 | 1 hrs | 6,438 (9%) | Unnamed event |
Over the 11 years from 2015 to 2025, Wicomico County recorded 503 distinct power outage events, averaging 1.7 hours per event.
The single worst outage on record in Wicomico County started January 29, 2025, lasting 3 hours and leaving up to 25,129 customers without power (37% of the county) at its peak.
August has historically been the worst month for outages in Wicomico County, with 74 events recorded during that month across the dataset.
Based on this history, Wicomico County earns a Reliability Grade of A, placing it in the 88th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Wicomico County's outage profile
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Similar counties in Maryland
Counties with the closest reliability grade and national percentile to Wicomico County.
| County | Grade | National percentile |
|---|---|---|
| Kent County | A | 86th |
| Talbot County | A | 84th |
| Dorchester County | A | 83rd |
| St. Mary's County | A | 81st |
| Charles County | A | 80th |
FAQ
How often does power go out in Wicomico County?
Between 2015 and 2025, Wicomico County recorded 503 outage events, averaging 1.7 hours each.
What is Wicomico County's reliability grade?
Wicomico County has a Reliability Grade of A, in the 88th national percentile.
What was the worst power outage in Wicomico County?
The worst outage on record started January 29, 2025, lasting 3 hours and affecting up to 25,129 customers.