RANKING · 2024 ACS · 15 SHOWN OF 15

Oldest by median age, Arizona counties

Arizona counties ranked by median age of residents (2024 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 2000

01La Paz County, AZAZ16,71160.2+29%

02Yavapai County, AZAZ252,55255.1+24%

03Mohave County, AZAZ228,10253.6+25%

04Gila County, AZAZ53,80151.1+21%

05Cochise County, AZAZ126,33243.0+17%

06Pinal County, AZAZ539,38040.4+9%

07Pima County, AZAZ1,074,68539.8+11%

08Navajo County, AZAZ109,94639.5+31%

09Santa Cruz County, AZAZ50,02037.9+19%

10Maricopa County, AZAZ4,689,55837.6+14%

11Apache County, AZAZ64,44536.6+36%

12Greenlee County, AZAZ9,31236.3+8%

13Yuma County, AZAZ224,44936.1+6%

14Graham County, AZAZ40,15734.9+13%

15Coconino County, AZAZ144,36832.8+11%

SHOWING 1–15 OF 15

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES