RANKING · 2024 ACS · 19 SHOWN OF 19

Highest Iranian population share, Colorado counties

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

01Garfield County, COCO63,4740.4%–

02Pitkin County, COCO16,6250.3%–

03Gunnison County, COCO17,4390.3%–

04Douglas County, COCO399,3960.2%–

05Boulder County, COCO328,5600.2%–

06Denver County, COCO740,6130.2%–

07Broomfield County, COCO79,1740.2%–

08Arapahoe County, COCO673,8200.2%–

09Larimer County, COCO377,2920.1%–

10Jefferson County, COCO580,4510.1%–

11Eagle County, COCO54,2910.1%–

12El Paso County, COCO757,0400.1%–

13San Miguel County, COCO7,7530.1%–

14Adams County, COCO554,6680.1%–

15Montezuma County, COCO26,6780.1%–

16Weld County, COCO378,4260.0%–

17Routt County, COCO25,3290.0%–

18Summit County, COCO31,5170.0%–

19Mesa County, COCO162,8450.0%–

SHOWING 1–19 OF 19

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