Arizona Power Outage History
15 counties tracked, 2014–2025. County-level reliability grades and outage frequency below.
Counties tracked
15
Avg national percentile
80th
Higher = more reliable
Grade F counties
0
County rankings (worst to best)
| County | Grade | National percentile |
|---|---|---|
| La Paz County | D | 36th |
| Gila County | C | 51st |
| Navajo County | B | 72nd |
| Pinal County | B | 74th |
| Santa Cruz County | B | 75th |
| Coconino County | A | 86th |
| Pima County | A | 86th |
| Maricopa County | A | 86th |
| Apache County | A | 87th |
| Yavapai County | A | 88th |
| Greenlee County | A | 89th |
| Yuma County | A | 89th |
| Mohave County | A | 93rd |
| Cochise County | A | 96th |
| Graham County | A | 100th |