Arizona County Map With Cities
By Marko Visic · Updated Oct 5, 2026
Arizona has 15 counties, covering 113,656 square miles of land. The Census Bureau estimates its population at 7,623,818 as of July 1, 2025. The largest county by land area is Coconino County; the most populous is Maricopa County; the least populous is Greenlee County.
Tap or click any county for details. Need a printable version? Blank Arizona map (PDF/PNG/SVG).
All 15 Arizona counties
| County | FIPS code | Population (July 1, 2025) ▼ | Change since April 2020 | Land area (sq mi) | People per sq mi | Median household income (2020–2024) |
|---|---|---|---|---|---|---|
| Maricopa County | 04013 | 4,689,558 | +6.0% | 9,202 | 510 | $89,300 |
| Pima County | 04019 | 1,074,685 | +3.0% | 9,189 | 117 | $70,315 |
| Pinal County | 04021 | 539,380 | +26.6% | 5,367 | 101 | $80,266 |
| Yavapai County | 04025 | 252,552 | +6.9% | 8,123 | 31 | $69,613 |
| Mohave County | 04015 | 228,102 | +7.0% | 13,332 | 17 | $57,684 |
| Yuma County | 04027 | 224,449 | +9.5% | 5,514 | 41 | $62,876 |
| Coconino County | 04005 | 144,368 | -0.5% | 18,616 | 8 | $72,966 |
| Cochise County | 04003 | 126,332 | +0.7% | 6,210 | 20 | $59,742 |
| Navajo County | 04017 | 109,946 | +3.0% | 9,949 | 11 | $54,606 |
| Apache County | 04001 | 64,445 | -2.4% | 11,198 | 6 | $41,438 |
| Gila County | 04007 | 53,801 | +1.0% | 4,758 | 11 | $61,986 |
| Santa Cruz County | 04023 | 50,020 | +4.9% | 1,236 | 40 | $55,217 |
| Graham County | 04009 | 40,157 | +4.2% | 4,622 | 9 | $67,325 |
| La Paz County | 04012 | 16,711 | +0.9% | 4,497 | 4 | $49,478 |
| Greenlee County | 04011 | 9,312 | -2.6% | 1,843 | 5 | $71,164 |
FIPS code: the Census Bureau’s five-digit county ID, a two-digit state code plus a three-digit county code. It is not a ZIP code.
How many counties does Arizona have?
Arizona has 15 counties covering 113,656 square miles. The state was admitted to the Union in 1912 as the 48th state.
The largest county by land area is Coconino County at 18,616 square miles, home to 144,368 residents. The most populous is Maricopa County with 4,689,558 residents — a density of 510 people per square mile. At the other end of the scale, Greenlee County has 9,312 residents.
Phoenix is both the state capital and the largest city in Arizona.
Related resources
Download a printable outline of Arizona’s county boundaries from our blank map of Arizona page — available in SVG, PNG, and PDF.
Use the What County Am I In? tool to detect which Arizona county a GPS location or address falls in, or the Address to County Lookup for batch input.
For demographic radius analysis, the Find ZIP Codes in Radius and Population Within Radius tools let you draw a circle around any Arizona address and see every ZIP code and the total population inside.
Two SimpleMapLab studies cover Arizona specifically: the 100-mile radius around Phoenix measures how much of the state lives within 100 miles of its capitol, and the loneliest town in Arizona ranks the state’s most isolated inhabited place. The county-counts blog post puts Arizona’s 15 counties in national context.
Frequently asked questions
- County Population Totals, Vintage 2025: estimates for July 1, 2025, released March 2026
- Gazetteer Files, 2026: county land and water area
- American Community Survey 5-Year Estimates, 2020–2024: median household income (table B19013)
- County boundaries on the map: US Atlas TopoJSON build of the US Census Bureau’s TIGER/Line shapefiles. All figures are US Census Bureau data in the public domain.