Iredell 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 |
|---|---|---|---|
| Oct 29, 2020 | 81 hrs | 33,405 (27%) | Tropical Storm Zeta |
| Aug 7, 2023 | 13 hrs | 23,376 (19%) | Tornado |
| Sep 27, 2024 | 133 hrs | 16,509 (13%) | Unnamed event |
| Oct 11, 2018 | 52 hrs | 12,951 (10%) | Tropical Storm |
| Sep 17, 2024 | 9 hrs | 11,449 (9%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Iredell County, North Carolina that day.
Over the 12 years from 2014 to 2025, Iredell County recorded 1,049 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Iredell County started October 29, 2020 (Tropical Storm Zeta), lasting 81 hours and leaving up to 33,405 customers without power (27% of the county) at its peak.
July has historically been the worst month for outages in Iredell County, with 138 events recorded during that month across the dataset.
Based on this history, Iredell County earns a Reliability Grade of B, placing it in the 61st percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in North Carolina
Counties with the closest reliability grade and national percentile to Iredell County.
| County | Grade | National percentile |
|---|---|---|
| Cabarrus County | B | 62nd |
| Stanly County | C | 60th |
| Franklin County | B | 64th |
| Davidson County | C | 57th |
| Cumberland County | C | 57th |
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 Iredell County?
Between 2014 and 2025, Iredell County recorded 1,049 outage events, averaging 2.7 hours each.
What is Iredell County's reliability grade?
Iredell County has a Reliability Grade of B, in the 61st national percentile.
What was the worst power outage in Iredell County?
The worst outage on record started October 29, 2020 (Tropical Storm Zeta), lasting 81 hours and affecting up to 33,405 customers.