RANKING · 1990 CENSUS · 15 SHOWN OF 15

Youngest by median age, Arizona counties · 1990

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

01Apache County, AZAZ64,44523.6−13%

02Coconino County, AZAZ144,36826.3−11%

03Navajo County, AZAZ109,94626.7−12%

04Santa Cruz County, AZAZ50,02029.1−8%

05Graham County, AZAZ40,15730.0−3%

06Yuma County, AZAZ224,44930.4−10%

07Greenlee County, AZAZ9,31231.8−5%

08Maricopa County, AZAZ4,689,55832.1−3%

09Pinal County, AZAZ539,38032.8−12%

10Cochise County, AZAZ126,33232.9−11%

11Pima County, AZAZ1,074,68532.9−8%

12La Paz County, AZAZ16,71136.2−23%

13Gila County, AZAZ53,80138.8−8%

14Mohave County, AZAZ228,10240.2−6%

15Yavapai County, AZAZ252,55242.5−4%

SHOWING 1–15 OF 15

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