Counties in Arizona
Each county page says how cases move there under Arizona's rules, and lists the police agencies that serve it.
15 counties, largest first
- Maricopa County4,689,558 people · 26 agencies
- Pima County1,074,685 people · 9 agencies
- Pinal County539,380 people · 13 agencies
- Yavapai County252,552 people · 11 agencies
- Mohave County228,102 people · 6 agencies
- Yuma County224,449 people · 6 agencies
- Coconino County144,368 people · 7 agencies
- Cochise County126,332 people · 8 agencies
- Navajo County109,946 people · 7 agencies
- Apache County64,445 people · 3 agencies
- Gila County53,801 people · 6 agencies
- Santa Cruz County50,020 people · 3 agencies
- Graham County40,157 people · 5 agencies
- La Paz County16,711 people · 3 agencies
- Greenlee County9,312 people · 2 agencies
Population: Census Bureau county population estimates, Vintage 2025 (cc-est2025-alldata), July 1, 2025.