Power outages in Pima County, AZ
We don't have a live outage feed for the utilities serving Pima County yet. Arizona Public Service Co, Tucson Electric Power Co and Trico Electric Cooperative Inc serve this county.
Right now
No live outage data for Pima County yet.
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This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
Outage history in Pima County
2014–2025 recordPima County averaged 15.7 significant outages a year in 2023–2025, about typical for Arizona counties.
In the 12 months to December 2025, there were 9. Half were over within 30 minutes; the longest lasted 6 hours, starting February 8, 2025.
The largest on record began February 1, 2016, with 55,764 customers out at once.
Outages are most common in July.
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At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.i
Half of significant outages here ended sooner than this, and half lasted longer.| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| February 1, 2016 | 55,764 | 5.5 hours | 186,136 |
| July 29, 2023 | 54,076 | 28 hours | 574,533 |
| December 20, 2017 | 43,225 | 30 minutes | 14,841 |
| July 15, 2024 | 38,456 | 16 hours | 248,902 |
| February 17, 2016 | 32,778 | 45 minutes | 22,695 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
Cities in Pima County
Utilities
- Arizona Public Service Co no live feed
- Tucson Electric Power Co no live feed
- Trico Electric Cooperative Inc no live feed
- Sulphur Springs Valley E C Inc no live feed
- USBIA-San Carlos Project no live feed
- All Arizona outages