RANKING · 2010 CENSUS · 15 SHOWN OF 15

Oldest by median age, Arizona counties · 2010

Arizona counties ranked by median age of residents (2010 ACS). This list covers the 15 counties in Arizona that qualify, ranked against each other statewide.

Flip the list · Youngest by median age, US counties →

ArizonaAll states All rankings

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, AZAZ16,71153.9+15%

02Yavapai County, AZAZ252,55249.2+11%

03Gila County, AZAZ53,80147.9+13%

04Mohave County, AZAZ228,10247.6+11%

05Cochise County, AZAZ126,33239.7+8%

06Pima County, AZAZ1,074,68537.7+6%

07Santa Cruz County, AZAZ50,02035.6+12%

08Pinal County, AZAZ539,38035.3−5%

09Greenlee County, AZAZ9,31234.8+4%

10Navajo County, AZAZ109,94634.7+15%

11Maricopa County, AZAZ4,689,55834.6+5%

12Yuma County, AZAZ224,44933.8−0%

13Apache County, AZAZ64,44532.4+20%

14Graham County, AZAZ40,15731.6+2%

15Coconino County, AZAZ144,36831.0+5%

SHOWING 1–15 OF 15

Download CSV (full list, 15 rows)

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