LaSalle ParishPower 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 |
|---|---|---|---|
| Jun 27, 2016 | 3 hrs | 5,692 (65%) | Unnamed event |
| May 9, 2018 | 6 hrs | 5,567 (64%) | Unnamed event |
| Aug 29, 2020 | 166 hrs | 5,298 (61%) | Hurricane Laura |
| Aug 28, 2020 | 4 hrs | 5,284 (61%) | Hurricane Laura |
| Aug 27, 2020 | 35 hrs | 5,264 (60%) | Hurricane Laura |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for LaSalle Parish, Louisiana that day.
Over the 12 years from 2014 to 2025, LaSalle Parish recorded 564 distinct power outage events, averaging 12.6 hours per event.
The single worst outage on record in LaSalle Parish started June 27, 2016, lasting 3 hours and leaving up to 5,692 customers without power (65% of the county) at its peak.
April has historically been the worst month for outages in LaSalle Parish, with 77 events recorded during that month across the dataset.
Based on this history, LaSalle Parish earns a Reliability Grade of F, placing it in the 7th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Louisiana
Counties with the closest reliability grade and national percentile to LaSalle Parish.
| County | Grade | National percentile |
|---|---|---|
| Caldwell Parish | F | 7th |
| Acadia Parish | F | 7th |
| East Baton Rouge Parish | F | 7th |
| Iberville Parish | F | 8th |
| East Carroll Parish | F | 8th |
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 LaSalle Parish?
Between 2014 and 2025, LaSalle Parish recorded 564 outage events, averaging 12.6 hours each.
What is LaSalle Parish's reliability grade?
LaSalle Parish has a Reliability Grade of F, in the 7th national percentile.
What was the worst power outage in LaSalle Parish?
The worst outage on record started June 27, 2016, lasting 3 hours and affecting up to 5,692 customers.