Yazoo 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 |
|---|---|---|---|
| Feb 18, 2021 | 57 hrs | 1,148 (10%) | Winter Storm Uri |
| Feb 17, 2021 | 16 hrs | 1,148 (10%) | Winter Storm Uri |
| Apr 12, 2020 | 53 hrs | 1,015 (9%) | Tornado |
| May 4, 2021 | 26 hrs | 958 (8%) | Tornado |
| Mar 22, 2022 | 29 hrs | 940 (8%) | Tornado |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Yazoo County, Mississippi that day.
Over the 12 years from 2014 to 2025, Yazoo County recorded 343 distinct power outage events, averaging 4.7 hours per event.
The single worst outage on record in Yazoo County started February 18, 2021 (Winter Storm Uri), lasting 57 hours and leaving up to 1,148 customers without power (10% of the county) at its peak.
June has historically been the worst month for outages in Yazoo County, with 55 events recorded during that month across the dataset.
Based on this history, Yazoo County earns a Reliability Grade of B, placing it in the 62nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Yazoo County.
| County | Grade | National percentile |
|---|---|---|
| Jones County | B | 63rd |
| Lafayette County | B | 68th |
| Noxubee County | C | 56th |
| DeSoto County | B | 72nd |
| Benton County | C | 51st |
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 Yazoo County?
Between 2014 and 2025, Yazoo County recorded 343 outage events, averaging 4.7 hours each.
What is Yazoo County's reliability grade?
Yazoo County has a Reliability Grade of B, in the 62nd national percentile.
What was the worst power outage in Yazoo County?
The worst outage on record started February 18, 2021 (Winter Storm Uri), lasting 57 hours and affecting up to 1,148 customers.