Smith 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 |
|---|---|---|---|
| Oct 26, 2019 | 58 hrs | 6,211 (69%) | Tropical Storm Olga |
| Dec 8, 2017 | 37 hrs | 5,976 (67%) | Heavy Snow |
| Feb 15, 2021 | 75 hrs | 5,329 (60%) | Winter Storm Uri |
| Dec 29, 2024 | 70 hrs | 5,164 (58%) | Tornado |
| Jun 16, 2023 | 126 hrs | 4,934 (55%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Smith County, Mississippi that day.
Over the 12 years from 2014 to 2025, Smith County recorded 1,368 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Smith County started October 26, 2019 (Tropical Storm Olga), lasting 58 hours and leaving up to 6,211 customers without power (69% of the county) at its peak.
June has historically been the worst month for outages in Smith County, with 154 events recorded during that month across the dataset.
Based on this history, Smith County earns a Reliability Grade of F, placing it in the 8th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Smith County.
| County | Grade | National percentile |
|---|---|---|
| Pike County | F | 8th |
| Holmes County | F | 7th |
| Walthall County | F | 9th |
| Jefferson Davis County | F | 9th |
| Simpson County | F | 9th |
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 Smith County?
Between 2014 and 2025, Smith County recorded 1,368 outage events, averaging 2.4 hours each.
What is Smith County's reliability grade?
Smith County has a Reliability Grade of F, in the 8th national percentile.
What was the worst power outage in Smith County?
The worst outage on record started October 26, 2019 (Tropical Storm Olga), lasting 58 hours and affecting up to 6,211 customers.