Hunterdon CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 2, 2018 | 81 hrs | 31,409 (47%) | Flood |
| Aug 4, 2020 | 143 hrs | 27,819 (42%) | Tropical Storm Isaias |
| Aug 12, 2016 | 4 hrs | 21,048 (31%) | Flash Flood |
| Oct 14, 2017 | <1 hr | 18,782 (28%) | Unnamed event |
| Nov 14, 2016 | <1 hr | 18,732 (28%) | Drought |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Hunterdon County, New Jersey that day.
Over the 11 years from 2015 to 2025, Hunterdon County recorded 1,606 distinct power outage events, averaging 3.9 hours per event.
The single worst outage on record in Hunterdon County started March 2, 2018 (Flood), lasting 81 hours and leaving up to 31,409 customers without power (47% of the county) at its peak.
August has historically been the worst month for outages in Hunterdon County, with 199 events recorded during that month across the dataset.
Based on this history, Hunterdon County earns a Reliability Grade of F, placing it in the 8th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in New Jersey
Counties with the closest reliability grade and national percentile to Hunterdon County.
| County | Grade | National percentile |
|---|---|---|
| Sussex County | F | 6th |
| Morris County | F | 13th |
| Warren County | F | 13th |
| Monmouth County | D | 26th |
| Burlington County | D | 32nd |
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 Hunterdon County?
Between 2015 and 2025, Hunterdon County recorded 1,606 outage events, averaging 3.9 hours each.
What is Hunterdon County's reliability grade?
Hunterdon County has a Reliability Grade of F, in the 8th national percentile.
What was the worst power outage in Hunterdon County?
The worst outage on record started March 2, 2018 (Flood), lasting 81 hours and affecting up to 31,409 customers.