RANKING · 2000 CENSUS · 15 SHOWN OF 15

Youngest by median age, Arizona counties · 2000

Arizona counties with the youngest median age (2000 ACS). This list covers the 15 counties in Arizona that qualify, ranked against each other statewide. The median across all 15 is 33.9.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 1990

01Apache County, AZAZ64,44527.0+14%

02Coconino County, AZAZ144,36829.6+12%

03Navajo County, AZAZ109,94630.2+13%

04Graham County, AZAZ40,15730.9+3%

05Santa Cruz County, AZAZ50,02031.8+9%

06Maricopa County, AZAZ4,689,55833.0+3%

07Greenlee County, AZAZ9,31233.6+6%

08Yuma County, AZAZ224,44933.9+12%

09Pima County, AZAZ1,074,68535.7+9%

10Cochise County, AZAZ126,33236.9+12%

11Pinal County, AZAZ539,38037.1+13%

12Gila County, AZAZ53,80142.3+9%

13Mohave County, AZAZ228,10242.9+7%

14Yavapai County, AZAZ252,55244.5+5%

15La Paz County, AZAZ16,71146.8+29%

SHOWING 1–15 OF 15

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS