Santa Cruz County Power Outage History
2016–2025 · Arizona
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 1, 2023 | 12 hrs | 19,353 (94%) | Unnamed event |
| Feb 21, 2022 | 1 hrs | 18,825 (91%) | Unnamed event |
| Sep 5, 2020 | 0 hrs | 10,152 (49%) | Drought |
| Jun 9, 2016 | 1 hrs | 5,308 (26%) | Excessive Heat |
| Jul 22, 2019 | 2 hrs | 4,996 (24%) | Unnamed event |
Over the 10 years from 2016 to 2025, Santa Cruz County recorded 436 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Santa Cruz County started February 1, 2023, lasting 12 hours and leaving up to 19,353 customers without power (94% of the county) at its peak.
July has historically been the worst month for outages in Santa Cruz County, with 108 events recorded during that month across the dataset.
Based on this history, Santa Cruz County earns a Reliability Grade of B, placing it in the 75th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Santa Cruz County's outage profile
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Outage-prep kit
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Similar counties in Arizona
Counties with the closest reliability grade and national percentile to Santa Cruz County.
| County | Grade | National percentile |
|---|---|---|
| Pinal County | B | 74th |
| Navajo County | B | 72nd |
| Coconino County | A | 86th |
| Pima County | A | 86th |
| Maricopa County | A | 86th |
FAQ
How often does power go out in Santa Cruz County?
Between 2016 and 2025, Santa Cruz County recorded 436 outage events, averaging 1.9 hours each.
What is Santa Cruz County's reliability grade?
Santa Cruz County has a Reliability Grade of B, in the 75th national percentile.
What was the worst power outage in Santa Cruz County?
The worst outage on record started February 1, 2023, lasting 12 hours and affecting up to 19,353 customers.