Worcester CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 29, 2025 | 3 hrs | 20,909 (54%) | Unnamed event |
| Jan 3, 2017 | 2 hrs | 18,536 (48%) | Unnamed event |
| Feb 8, 2017 | 5 hrs | 18,210 (47%) | Unnamed event |
| Aug 4, 2020 | 28 hrs | 11,360 (29%) | Tropical Storm Isaias |
| May 23, 2016 | <1 hr | 10,904 (28%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Worcester County, Maryland that day.
Over the 11 years from 2015 to 2025, Worcester County recorded 573 distinct power outage events, averaging 2.0 hours per event.
The single worst outage on record in Worcester County started January 29, 2025, lasting 3 hours and leaving up to 20,909 customers without power (54% of the county) at its peak.
July has historically been the worst month for outages in Worcester County, with 81 events recorded during that month across the dataset.
Based on this history, Worcester County earns a Reliability Grade of B, placing it in the 67th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Maryland
Counties with the closest reliability grade and national percentile to Worcester County.
| County | Grade | National percentile |
|---|---|---|
| Prince George's County | B | 67th |
| Anne Arundel County | B | 69th |
| Baltimore County | B | 65th |
| Montgomery County | B | 71st |
| Washington County | B | 72nd |
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 Worcester County?
Between 2015 and 2025, Worcester County recorded 573 outage events, averaging 2.0 hours each.
What is Worcester County's reliability grade?
Worcester County has a Reliability Grade of B, in the 67th national percentile.
What was the worst power outage in Worcester County?
The worst outage on record started January 29, 2025, lasting 3 hours and affecting up to 20,909 customers.