How many counties are in Arizona?

1. Apache County

2. Cochise County

3. Coconino County

4. Gila County

5. Graham County

6. Greenlee County

7. La Paz County

8. Maricopa County

9. Mohave County

10. Navajo County

11. Pima County

12. Pinal County

13. Santa Cruz County

14. Yavapai County

15. Yuma County