Blank map of Arizona by county
All 15 counties of Arizona, ready to print on Letter, Tabloid, A4 or A3, or to download as PNG and SVG. Free, no sign-up.
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Mapsfera · data US Census Bureau
Arizona on the map
Arizona has 15 counties; only 7 states have fewer. The largest is Coconino, with 18,616 sq mi of land, and the smallest is Santa Cruz, with 1,236 sq mi: Coconino is about 15 times bigger.
The state capital, Phoenix, is in Maricopa County. The capital version marks it on the map.
Maricopa County is the most populous, with 4,689,558 people in 2025, or 62% of the state. The least populous is Greenlee, with 9,312. Since 2020, Pinal has grown the fastest (+26.6%) and Greenlee has lost the most (−2.6%).
What each county borders
Graham borders the most counties in the state: 7 (Apache, Cochise, Gila, Greenlee, Navajo, Pima, and Pinal).
8 counties touch another state. 4 border Utah: Apache, Coconino, Mohave, and Navajo. 3 border New Mexico: Apache, Cochise, and Greenlee. 3 border California: La Paz, Mohave, and Yuma. Only Mohave borders Nevada.
4 counties border Mexico: Cochise, Pima, Santa Cruz, and Yuma.
None has a coastline: Arizona is landlocked.
Number key
Numbers follow alphabetical order, from 1 (Apache) to 15 (Yuma). Area is land area, without lakes or sea, and population is the Census estimate for July 1, 2025; “Borders” counts neighboring counties in the same state.
| No. | County | Land area | Population (2025) | Borders |
|---|---|---|---|---|
| 1 | Apache | 11,198 sq mi | 64,445 | 3 |
| 2 | Cochise | 6,210 sq mi | 126,332 | 4 |
| 3 | Coconino | 18,616 sq mi | 144,368 | 4 |
| 4 | Gila | 4,758 sq mi | 53,801 | 6 |
| 5 | Graham | 4,622 sq mi | 40,157 | 7 |
| 6 | Greenlee | 1,843 sq mi | 9,312 | 3 |
| 7 | La Paz | 4,497 sq mi | 16,711 | 4 |
| 8 | Maricopa | 9,202 sq mi | 4,689,558 | 6 |
| 9 | Mohave | 13,332 sq mi | 228,102 | 3 |
| 10 | Navajo | 9,950 sq mi | 109,946 | 4 |
| 11 | Pima | 9,189 sq mi | 1,074,685 | 6 |
| 12 | Pinal | 5,367 sq mi | 539,380 | 4 |
| 13 | Santa Cruz | 1,236 sq mi | 50,020 | 2 |
| 14 | Yavapai | 8,123 sq mi | 252,552 | 5 |
| 15 | Yuma | 5,514 sq mi | 224,449 | 3 |
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Frequently asked questions
How many counties does Arizona have?
15 counties. Only 7 states have fewer.
What is the largest county in Arizona?
Coconino, with 18,616 sq mi of land. The smallest is Santa Cruz, with 1,236 sq mi.
What is the most populous county in Arizona?
Maricopa County, with an estimated 4,689,558 people in 2025, or 62% of the state.
What county is Phoenix in?
The state capital, Phoenix, is in Maricopa County.
Which Arizona counties border Mexico?
4 counties: Cochise, Pima, Santa Cruz, and Yuma.
Can I use it in class?
Yes, it’s free. Print it, copy it and hand it out as many times as you like. If you post it on a blog or a class website, credit “Mapsfera · data US Census Bureau”.
How do I print it on US Letter paper?
Choose Letter in “Paper size” and click “Download PDF”. In the print window, pick Letter paper and 100% scale (“Actual size”). For a bigger map, choose Tabloid (11 × 17 in) or A3.
What order are the numbers in?
Alphabetical, from 1 to the last one. That makes the key easy to follow when you grade, and it’s the same key the worksheet’s answer page uses.
Sources
- Boundaries: U.S. Census Bureau, Cartographic Boundary Files 2025, counties at 1:500,000 (public domain)
- Land and water area: U.S. Census Bureau (TIGER/Line and 2025 Gazetteer); population: Vintage 2025 estimates (July 1, 2025)
- State capital: Natural Earth, Populated Places (public domain); which counties it spans, Census places
- Neighbors, coastline and borders: calculated from those boundaries (and checked against the Census county adjacency file)