Arizona counties quiz

The 15 counties in the quiz

They’re the 15 counties of Arizona, as counted by the US Census Bureau. The state capital, Phoenix, is in Maricopa County.

How to play

In Point mode we name a county and you tap it on the map; in Type mode one lights up and you type its name (accents don’t matter); and in Time trial you get 6 seconds per question. If you miss, we show you where it was, which way it lies and a hint drawn from the data: its size rank and its neighbors.

Each game has 10, 20 or all the questions, and at the end you can practice just the ones you missed. Your best score for each mode is saved in this browser only: neither we nor anyone else can see it, and there’s no sign-up.

The hardest ones

The smallest counties are the hardest, since they barely show on the map: Santa Cruz (1,236 sq mi), Greenlee (1,843 sq mi), and La Paz (4,497 sq mi). Zoom in with the buttons or two fingers to tap them.

Tips to learn them

• Start with the three largest: Coconino, Mohave, and Apache cover 38% of the area of Arizona.
• The 4 counties bordering Utah trace that border on the map: Apache, Coconino, Mohave, and Navajo.
• Graham has the most neighbors: it borders 7 counties. Once you place it, you have a landmark for many more.
• Maricopa is the most populous (4,689,558 people in 2025) and, together with Pima and Pinal, is home to 83% of Arizona’s people.

Playing in class

If you teach in Arizona, start with your school’s county and its neighbors and add a few each day. Otherwise, it’s a good way to get to know the state before studying it.

With the Challenge your class link, everyone gets the same questions in the same order, with no accounts or passwords, and each student sees their own score, time and streak. To practice on paper, there’s a printable worksheet of the same map with an answer key.

List of all 15 counties

1. Apache pop. 64,445
2. Cochise pop. 126,332
3. Coconino pop. 144,368
4. Gila pop. 53,801
5. Graham pop. 40,157
6. Greenlee pop. 9,312
7. La Paz pop. 16,711
8. Maricopa pop. 4,689,558
9. Mohave pop. 228,102
10. Navajo pop. 109,946
11. Pima pop. 1,074,685
12. Pinal pop. 539,380
13. Santa Cruz pop. 50,020
14. Yavapai pop. 252,552
15. Yuma pop. 224,449