Union 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 |
|---|---|---|---|
| Mar 10, 2022 | <1 hr | 16,904 (65%) | Unnamed event |
| Mar 11, 2022 | <1 hr | 13,594 (52%) | Unnamed event |
| Oct 29, 2020 | 61 hrs | 9,435 (36%) | Tropical Storm Zeta |
| Sep 26, 2025 | <1 hr | 7,583 (29%) | Unnamed event |
| Nov 28, 2024 | <1 hr | 6,047 (23%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Union County, Georgia that day.
Over the 7 years from 2019 to 2025, Union County recorded 380 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Union County started March 10, 2022, lasting less than 1 hour and leaving up to 16,904 customers without power (65% of the county) at its peak.
July has historically been the worst month for outages in Union County, with 45 events recorded during that month across the dataset.
Based on this history, Union County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Georgia
Counties with the closest reliability grade and national percentile to Union County.
| County | Grade | National percentile |
|---|---|---|
| Fannin County | B | 67th |
| Hart County | B | 68th |
| Muscogee County | B | 68th |
| Rockdale County | B | 69th |
| Elbert County | B | 63rd |
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 Union County?
Between 2019 and 2025, Union County recorded 380 outage events, averaging 2.2 hours each.
What is Union County's reliability grade?
Union County has a Reliability Grade of B, in the 66th national percentile.
What was the worst power outage in Union County?
The worst outage on record started March 10, 2022, lasting less than 1 hour and affecting up to 16,904 customers.