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West county atlas

Arizona county map

Explore all 15 counties. Select a county to see its map, or download a copy for your next project.

2025 Census boundaries15 mapped unitsCapital: Phoenix
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Boundary map 100%
Labelled map of Arizona counties Apache CountyCochise CountyCoconino CountyGila CountyGraham CountyGreenlee CountyLa Paz CountyMaricopa CountyMohave CountyNavajo CountyPima CountyPinal CountySanta Cruz CountyYavapai CountyYuma County
Select a county to highlight its boundary.
2025 U.S. Census boundaries. Zoom to reveal more names. Drag to pan when zoomed; use arrow keys, + and − with the map focused.

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Choose a format for printing, editing, or sharing. All downloads are free.

SVG

SVG is editable vector artwork. PNG is a high-resolution image. PDF uses landscape Letter pages, with a separate key when needed.

Downloads contain the complete boundary map, independent of zoom. Crowded names use a numbered key. Numbered quiz maps use the county list / answer key (CSV). Boundary data (GeoJSON) · Reuse with source credit.

Roads, terrain & aerial imagery

Explore Arizona with a county boundary overlay. Choose a view to load the interactive map.

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Street names, terrain, or aerial photography with the county boundary in view.

Backgrounds load from OpenStreetMap or USGS only when selected. Imagery dates and detail vary by location.

Map scope: Use the boundary map for names and shapes, or the interactive background viewer for roads, terrain, and aerial imagery. County boundaries do not identify parcels or ZIP codes.

Arizona county geography overview

Arizona has 15 counties, which places it 43rd among the 50 state and District of Columbia maps in this atlas when ordered by number of county-level units. Their combined 113,655.5 square miles of land place the state 6th by mapped land area.

The average county-level area is 7,577 square miles, while the median is 6,209.9 square miles. The median is often the better description of a typical unit because one or two very large areas can pull the average upward. The five largest units together account for about 55% of the state’s mapped land area.

15county-level units
6,209.9 sq mimedian land area
18,616.4 sq milargest unit
0%share of mapped area that is water

Largest and smallest Arizona counties

Coconino County is the largest county-level unit by land area at 18,616.4 square miles. It represents about 16% of all mapped land in Arizona. At the other end of the range, Santa Cruz County has 1,236.3 square miles of land.

Largest by land area

  1. Coconino County18,616.4 sq mi
  2. Mohave County13,332.1 sq mi
  3. Apache County11,198.3 sq mi
  4. Navajo County9,949.5 sq mi
  5. Maricopa County9,202 sq mi

Smallest by land area

  1. Santa Cruz County1,236.3 sq mi
  2. Greenlee County1,842.8 sq mi
  3. La Paz County4,496.6 sq mi
  4. Graham County4,621.9 sq mi
  5. Gila County4,757.6 sq mi

Rankings use land area rather than total area. This avoids making coastal or lake counties appear larger solely because their boundaries include extensive water.

Alphabetical list of Arizona counties

The table is alphabetical, so it works as a name and FIPS-code reference rather than an area ranking. Every identifier begins with the Arizona state FIPS prefix 04. Land and water figures are rounded to one decimal place.

15 county-level areas

Download county data / numbered map key (CSV)
No.NameFIPS codeLand areaWater area
1Apache County0400111,198.3 sq mi20.9 sq mi
2Cochise County040036,209.9 sq mi6.8 sq mi
3Coconino County0400518,616.4 sq mi45 sq mi
4Gila County040074,757.6 sq mi37.2 sq mi
5Graham County040094,621.9 sq mi18.3 sq mi
6Greenlee County040111,842.8 sq mi4.6 sq mi
7La Paz County040124,496.6 sq mi14.1 sq mi
8Maricopa County040139,202 sq mi24 sq mi
9Mohave County0401513,332.1 sq mi128.7 sq mi
10Navajo County040179,949.5 sq mi9.3 sq mi
11Pima County040199,188.7 sq mi2 sq mi
12Pinal County040215,366.7 sq mi8 sq mi
13Santa Cruz County040231,236.3 sq mi1.2 sq mi
14Yavapai County040258,122.9 sq mi4.4 sq mi
15Yuma County040275,513.8 sq mi5.1 sq mi

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, download a PDF from the controls above. Labelled exports use numbered callouts for crowded areas; numbered quiz maps match the alphabetical county list. SVG files keep the boundary lines sharp at larger paper 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 Download / print and select PDF for a landscape Letter page, PNG for an image, or SVG for editable vector artwork. Because the map is SVG, its boundary lines stay sharp when scaled.

What is the largest county in Arizona?

Coconino County is the largest by land area in this dataset at 18,616.4 square miles. This is an area ranking, not a population ranking.

What is the smallest county in Arizona?

Santa Cruz County is the smallest by land area in this dataset at 1,236.3 square miles.

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, 1:5,000,000. Land and water area fields are supplied in the same file and converted from square meters to square miles. Accessed September 27, 2026.