RANKING · 2000 CENSUS · 15 SHOWN OF 15

Most population lost, Arizona counties · 2000

Arizona counties that lost the most residents from the 1990 census to 2000, by raw count of people rather than percentage. This list covers the 15 counties in Arizona that qualify, ranked against each other statewide. The median across all 15 is +19,812.

Flip the list · Most population gained, US counties →

ArizonaAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most population gained Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS –

01Greenlee County, AZAZ9,312+539–

02La Paz County, AZAZ16,711+5,871–

03Graham County, AZAZ40,157+6,935–

04Apache County, AZAZ64,445+7,832–

05Santa Cruz County, AZAZ50,020+8,705–

06Gila County, AZAZ53,801+11,119–

07Coconino County, AZAZ144,368+19,729–

08Navajo County, AZAZ109,946+19,812–

09Cochise County, AZAZ126,332+20,131–

10Yuma County, AZAZ224,449+53,131–

11Yavapai County, AZAZ252,552+59,803–

12Mohave County, AZAZ228,102+61,535–

13Pinal County, AZAZ539,380+63,348–

14Pima County, AZAZ1,074,685+176,866–

15Maricopa County, AZAZ4,689,558+950,048–

SHOWING 1–15 OF 15

Download CSV (full list, 15 rows)

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