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Counties in Arizona

Arizona has 15 counties. Find yours from your location, or explore the map and the full list with seats, population, time zones and FIPS codes.

Updated · Data: U.S. Census Bureau

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Arizona has 15 counties, home to about 7,268,175 people. Sort the table by any column, or search by name or seat.

Counties15time zones: Mountain, Mountain (no DST)
Most peopleMaricopa County4,491,987 residents, 62% of the state
Fewest peopleGreenlee County9,452 residents
Most crowdedMaricopa County488 people per sq mi
Largest by landCoconino County18,616.4 sq mi
Priciest homesMaricopa Countymedian value $414,700

Arizona county map

Apache County: 65,680 peopleCochise County: 125,458 peopleCoconino County: 144,643 peopleGila County: 53,610 peopleGraham County: 38,860 peopleGreenlee County: 9,452 peopleLa Paz County: 16,605 peopleMaricopa County: 4,491,987 peopleMohave County: 217,420 peopleNavajo County: 107,744 peoplePima County: 1,049,947 peoplePinal County: 449,219 peopleSanta Cruz County: 48,209 peopleYavapai County: 241,656 peopleYuma County: 207,685 people
Population9.5k17k48k66k125k208k242kno data
Map of all 15 counties in Arizona. Hover or tap a county for its facts; select it to find it in the table. Sources: Census TIGER/Line 2024, ACS 2019-2023 5-year, timezone-boundary-builder.

County explorer: all 15 counties in Arizona

15 shown
CountySeatPopulationLand sq miPeople / sq miMedian homeTime zoneFIPS
MaricopaPhoenix4,491,9879,202.0488$414,700Mountain (no DST)04013
PimaTucson1,049,9479,188.7114$286,900Mountain (no DST)04019
PinalFlorence449,2195,366.784$312,100Mountain (no DST)04021
YavapaiPrescott241,6568,122.930$392,900Mountain (no DST)04025
MohaveKingman217,42013,332.116$253,200Mountain (no DST)04015
YumaYuma207,6855,513.838$195,700Mountain (no DST)04027
CoconinoFlagstaff144,64318,616.48$413,200Mountain (no DST) (split)04005
CochiseBisbee125,4586,209.920$207,400Mountain (no DST)04003
NavajoHolbrook107,7449,949.511$186,100Mountain (no DST) (split)04017
ApacheSt. Johns65,68011,198.36$68,500Mountain (split)04001
GilaGlobe53,6104,757.611$247,000Mountain (no DST)04007
Santa CruzNogales48,2091,236.339$216,100Mountain (no DST)04023
GrahamSafford38,8604,621.98$202,700Mountain (no DST)04009
La PazParker16,6054,496.64$117,600Mountain (no DST)04012
GreenleeClifton9,4521,842.85$136,300Mountain (no DST)04011

Which Arizona cities are in more than one county?

  • Queen Creek: Maricopa County 84.5%, Pinal County 15.5% of residents
  • Apache Junction: Pinal County 98.5%, Maricopa County 1.5% of residents
  • Sedona: Yavapai County 73.8%, Coconino County 26.2% of residents
  • Wickenburg: Maricopa County 89.1%, Yavapai County 10.9% of residents
  • Peridot: Graham County 79.8%, Gila County 20.2% of residents

Sources: Census TIGER/Line 2024; ACS 2019-2023 5-year; Wikidata, CC0 (seats); timezone-boundary-builder (time zones). Data as of November 1, 2026. Not affiliated with any government agency.

FAQ

Frequently asked questions

How many counties are in Arizona?
15.
What is the most populated county in Arizona?
Maricopa County, with about 4,491,987 people (62% of the state).
What is the least populated county in Arizona?
Greenlee County, with about 9,452 people.
What is the largest county in Arizona by land?
Coconino County, 18,616.4 sq mi of land.
What county am I in, in Arizona?
Use the tool at the top of this page: press Use my current location, or type your city or ZIP code.