RANKING · 2000 CENSUS · 15 SHOWN OF 15

Fastest growing, Arizona counties · 2000

Arizona counties ranked by population growth from the 1990 census to 2000. This list covers the 15 counties in Arizona that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS –

01Mohave County, AZAZ228,102+65.8%–

02Yavapai County, AZAZ252,552+55.5%–

03Pinal County, AZAZ539,380+54.4%–

04Yuma County, AZAZ224,449+49.7%–

05Maricopa County, AZAZ4,689,558+44.8%–

06La Paz County, AZAZ16,711+42.4%–

07Santa Cruz County, AZAZ50,020+29.3%–

08Gila County, AZAZ53,801+27.6%–

09Pima County, AZAZ1,074,685+26.5%–

10Graham County, AZAZ40,157+26.1%–

11Navajo County, AZAZ109,946+25.5%–

12Cochise County, AZAZ126,332+20.6%–

13Coconino County, AZAZ144,368+20.4%–

14Apache County, AZAZ64,445+12.7%–

15Greenlee County, AZAZ9,312+6.7%–

SHOWING 1–15 OF 15

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