RANKING · 2020 CENSUS · 19 SHOWN OF 19

Highest Iranian population share, Colorado counties · 2020

Colorado counties ranked by the share of all residents who are Iranian ancestry (2023 American Community Survey). A concentration measure: Iranian residents as a percentage of total population. This list covers the 19 counties in Colorado that qualify, ranked against each other statewide.

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RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

Highest Iranian population share by state

RANKPLACESTATEPOPIRANIAN SHAREVS 2000

01Mineral County, COCO9101.5%–

02Garfield County, COCO63,4740.3%–

03Douglas County, COCO399,3960.3%–

04Boulder County, COCO328,5600.2%–

05Gunnison County, COCO17,4390.2%–

06Denver County, COCO740,6130.2%–

07Arapahoe County, COCO673,8200.2%–

08Broomfield County, COCO79,1740.2%–

09Larimer County, COCO377,2920.1%–

10Jefferson County, COCO580,4510.1%–

11Mesa County, COCO162,8450.1%–

12Adams County, COCO554,6680.1%–

13Weld County, COCO378,4260.1%–

14El Paso County, COCO757,0400.1%–

15Eagle County, COCO54,2910.0%–

16Fremont County, COCO50,0390.0%–

17Morgan County, COCO30,3060.0%–

18Routt County, COCO25,3290.0%–

19Pueblo County, COCO169,2770.0%–

SHOWING 1–19 OF 19

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES