RANKING · 1990 CENSUS · 15 SHOWN OF 15

Youngest by median age, Arizona counties · 1990

Arizona counties with the youngest median age (1990 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

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 –

01Apache County, AZAZ64,44523.6–

02Coconino County, AZAZ144,36826.3–

03Navajo County, AZAZ109,94626.7–

04Santa Cruz County, AZAZ50,02029.1–

05Graham County, AZAZ40,15730.0–

06Yuma County, AZAZ224,44930.4–

07Greenlee County, AZAZ9,31231.8–

08Maricopa County, AZAZ4,689,55832.1–

09Pinal County, AZAZ539,38032.8–

10Cochise County, AZAZ126,33232.9–

11Pima County, AZAZ1,074,68532.9–

12La Paz County, AZAZ16,71136.2–

13Gila County, AZAZ53,80138.8–

14Mohave County, AZAZ228,10240.2–

15Yavapai County, AZAZ252,55242.5–

SHOWING 1–15 OF 15

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS