Tulsa CountyPower Outage History
What this grade means
Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 18, 2023 | 110 hrs | 171,636 (44%) | Thunderstorm Wind |
| Jul 14, 2016 | 45 hrs | 74,402 (19%) | Hail |
| Dec 20, 2017 | 3 hrs | 56,560 (15%) | Unnamed event |
| Jun 22, 2023 | 100 hrs | 56,350 (14%) | Thunderstorm Wind |
| Nov 3, 2024 | 18 hrs | 37,199 (10%) | Drought |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Tulsa County, Oklahoma that day.
Over the 12 years from 2014 to 2025, Tulsa County recorded 2,569 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Tulsa County started June 18, 2023 (Thunderstorm Wind), lasting 110 hours and leaving up to 171,636 customers without power (44% of the county) at its peak.
May has historically been the worst month for outages in Tulsa County, with 287 events recorded during that month across the dataset.
Based on this history, Tulsa County earns a Reliability Grade of D, placing it in the 35th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Oklahoma
Counties with the closest reliability grade and national percentile to Tulsa County.
| County | Grade | National percentile |
|---|---|---|
| Pittsburg County | D | 35th |
| Creek County | D | 35th |
| Pottawatomie County | D | 37th |
| Le Flore County | D | 37th |
| Delaware County | D | 33rd |
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 Tulsa County?
Between 2014 and 2025, Tulsa County recorded 2,569 outage events, averaging 2.3 hours each.
What is Tulsa County's reliability grade?
Tulsa County has a Reliability Grade of D, in the 35th national percentile.
What was the worst power outage in Tulsa County?
The worst outage on record started June 18, 2023 (Thunderstorm Wind), lasting 110 hours and affecting up to 171,636 customers.