Poquoson CountyPower Outage History
2015–2025 · Virginia
Worse than average — more frequent or longer outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 30, 2019 | <1 hr | 5,447 (95%) | Unnamed event |
| Oct 12, 2018 | 42 hrs | 4,270 (74%) | High Wind |
| Sep 19, 2025 | <1 hr | 3,782 (66%) | Unnamed event |
| Nov 23, 2025 | <1 hr | 3,779 (66%) | Unnamed event |
| Sep 23, 2023 | 3 hrs | 3,759 (65%) | Tropical Storm Ophelia |
Over the 11 years from 2015 to 2025, Poquoson County recorded 254 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Poquoson County started July 30, 2019, lasting less than 1 hour and leaving up to 5,447 customers without power (95% of the county) at its peak.
June has historically been the worst month for outages in Poquoson County, with 42 events recorded during that month across the dataset.
Based on this history, Poquoson County earns a Reliability Grade of D, placing it in the 38th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Poquoson County.
| County | Grade | National percentile |
|---|---|---|
| Roanoke County | D | 37th |
| Essex County | D | 39th |
| Virginia Beach County | D | 39th |
| King George County | D | 36th |
| Chesterfield County | D | 36th |
Most reliable counties in Virginia
The top 3 counties in Virginia by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Manassas Park County | A | 96th |
| Radford County | A | 95th |
| Winchester County | A | 93rd |
Least reliable counties in Virginia
The bottom 3 counties in Virginia by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Bland County | F | 1st |
| Floyd County | F | 1st |
| Grayson County | F | 2nd |
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 Poquoson County?
Between 2015 and 2025, Poquoson County recorded 254 outage events, averaging 3.4 hours each.
What is Poquoson County's reliability grade?
Poquoson County has a Reliability Grade of D, in the 38th national percentile.
What was the worst power outage in Poquoson County?
The worst outage on record started July 30, 2019, lasting less than 1 hour and affecting up to 5,447 customers.