RANKING · 1990 CENSUS · 15 SHOWN OF 15

Oldest housing stock, Arizona counties · 1990

Arizona counties ranked by oldest median year of construction (1990 ACS). This list covers the 15 counties in Arizona that qualify, ranked against each other statewide. The median across all 15 is 1975.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2010 2020 2024

RANKPLACESTATEPOPMEDIAN YEAR BUILTVS –

01Greenlee County, AZAZ9,3121971–

02Graham County, AZAZ40,1571972–

03Cochise County, AZAZ126,3321973–

04Gila County, AZAZ53,8011974–

05Pima County, AZAZ1,074,6851974–

06Santa Cruz County, AZAZ50,0201974–

07Apache County, AZAZ64,4451975–

08Yuma County, AZAZ224,4491975–

09Coconino County, AZAZ144,3681976–

10La Paz County, AZAZ16,7111976–

11Navajo County, AZAZ109,9461976–

12Pinal County, AZAZ539,3801976–

13Maricopa County, AZAZ4,689,5581977–

14Yavapai County, AZAZ252,5521978–

15Mohave County, AZAZ228,1021979–

SHOWING 1–15 OF 15

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS