RANKING · 2024 ACS · 15 SHOWN OF 15

Youngest by median age, Arizona counties

Arizona counties with the youngest median age (2023 ACS). This list covers the 15 counties in Arizona that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Coconino County, AZAZ144,36832.8+11%

02Graham County, AZAZ40,15734.9+13%

03Yuma County, AZAZ224,44936.1+6%

04Greenlee County, AZAZ9,31236.3+8%

05Apache County, AZAZ64,44536.6+36%

06Maricopa County, AZAZ4,689,55837.6+14%

07Santa Cruz County, AZAZ50,02037.9+19%

08Navajo County, AZAZ109,94639.5+31%

09Pima County, AZAZ1,074,68539.8+11%

10Pinal County, AZAZ539,38040.4+9%

11Cochise County, AZAZ126,33243.0+17%

12Gila County, AZAZ53,80151.1+21%

13Mohave County, AZAZ228,10253.6+25%

14Yavapai County, AZAZ252,55255.1+24%

15La Paz County, AZAZ16,71160.2+29%

SHOWING 1–15 OF 15

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES