Multnomah 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 |
|---|---|---|---|
| Feb 13, 2021 | 134 hrs | 125,115 (30%) | Blizzard |
| Jan 13, 2024 | 173 hrs | 123,419 (30%) | Blizzard |
| Apr 11, 2022 | 64 hrs | 67,481 (16%) | Unnamed event |
| Sep 8, 2020 | 46 hrs | 53,768 (13%) | Unnamed event |
| Jan 13, 2021 | 71 hrs | 40,015 (10%) | Debris Flow |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Multnomah County, Oregon that day.
Over the 12 years from 2014 to 2025, Multnomah County recorded 2,664 distinct power outage events, averaging 4.4 hours per event.
The single worst outage on record in Multnomah County started February 13, 2021 (Blizzard), lasting 134 hours and leaving up to 125,115 customers without power (30% of the county) at its peak.
July has historically been the worst month for outages in Multnomah County, with 287 events recorded during that month across the dataset.
Based on this history, Multnomah County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Oregon
Counties with the closest reliability grade and national percentile to Multnomah County.
| County | Grade | National percentile |
|---|---|---|
| Yamhill County | D | 32nd |
| Wallowa County | D | 26th |
| Clatsop County | D | 25th |
| Douglas County | D | 35th |
| Polk County | D | 37th |
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 Multnomah County?
Between 2014 and 2025, Multnomah County recorded 2,664 outage events, averaging 4.4 hours each.
What is Multnomah County's reliability grade?
Multnomah County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Multnomah County?
The worst outage on record started February 13, 2021 (Blizzard), lasting 134 hours and affecting up to 125,115 customers.