Alphabetical list of Arizona counties
The land-area figures are rounded to the nearest square mile. Water area is shown separately so large lakes or coastal waters do not obscure the comparison.
| Name | FIPS code | Land area | Water area |
|---|---|---|---|
| Apache County | 04001 | 11,198 sq mi | 21 sq mi |
| Cochise County | 04003 | 6,210 sq mi | 7 sq mi |
| Coconino County | 04005 | 18,616 sq mi | 45 sq mi |
| Gila County | 04007 | 4,758 sq mi | 37 sq mi |
| Graham County | 04009 | 4,622 sq mi | 18 sq mi |
| Greenlee County | 04011 | 1,843 sq mi | 5 sq mi |
| La Paz County | 04012 | 4,497 sq mi | 14 sq mi |
| Maricopa County | 04013 | 9,202 sq mi | 24 sq mi |
| Mohave County | 04015 | 13,332 sq mi | 129 sq mi |
| Navajo County | 04017 | 9,949 sq mi | 9 sq mi |
| Pima County | 04019 | 9,189 sq mi | 2 sq mi |
| Pinal County | 04021 | 5,367 sq mi | 8 sq mi |
| Santa Cruz County | 04023 | 1,236 sq mi | 1 sq mi |
| Yavapai County | 04025 | 8,123 sq mi | 4 sq mi |
| Yuma County | 04027 | 5,514 sq mi | 5 sq mi |
Largest Arizona counties by land area
These are the five largest mapped units in Arizona by Census-reported land area:
- Coconino County — 18,616 square miles
- Mohave County — 13,332 square miles
- Apache County — 11,198 square miles
- Navajo County — 9,949 square miles
- Maricopa County — 9,202 square miles
How to read and use this map
County lines are administrative boundaries, not postal routes. A mailing address can use a city name associated with a neighboring area, and ZIP codes can cross county lines. When you need to identify a county for an address, confirm it with an official geocoder or local government source.
For classroom or planning use, print directly from this page. If labels become crowded, choose landscape orientation and reduce page margins. The underlying vector lines remain crisp at different sizes.
Frequently asked questions
How many counties are in Arizona?
Arizona has 15 counties in the U.S. Census Bureau’s 2025 cartographic boundary file.
Can I print this Arizona county map?
Yes. Choose Print map and use landscape orientation for the widest map. Because the map is SVG, its boundary lines stay sharp when scaled.
Are these legal survey boundaries?
No. This is a generalized reference map. Property, parcel, election, and legal boundary questions should be checked with the relevant state or local agency.
Map source
U.S. Census Bureau, 2025 Cartographic Boundary File, Counties, 1:20,000,000. Land and water area fields are supplied in the same file and converted from square meters to square miles. Accessed September 15, 2026.