RANKING · 2010 CENSUS · 15 SHOWN OF 15

Most population lost, Arizona counties · 2010

Arizona counties that lost the most residents from the 2000 census to 2010, by raw count of people rather than percentage. This list covers the 15 counties in Arizona that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Greenlee County, AZAZ9,312-110−120%

02La Paz County, AZAZ16,711+774−87%

03Apache County, AZAZ64,445+2,095−73%

04Gila County, AZAZ53,801+2,262−80%

05Graham County, AZAZ40,157+3,731−46%

06Santa Cruz County, AZAZ50,020+9,039+4%

07Navajo County, AZAZ109,946+9,979−50%

08Cochise County, AZAZ126,332+13,591−32%

09Coconino County, AZAZ144,368+18,101−8%

10Yuma County, AZAZ224,449+35,725−33%

11Yavapai County, AZAZ252,552+43,516−27%

12Mohave County, AZAZ228,102+45,154−27%

13Pima County, AZAZ1,074,685+136,517−23%

14Pinal County, AZAZ539,380+196,043+209%

15Maricopa County, AZAZ4,689,558+744,968−22%

SHOWING 1–15 OF 15

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