RANKING · 2024 ACS · 28 SHOWN OF 28

Highest Australian population share, Colorado counties

Colorado counties ranked by the share of all residents who are Australian ancestry (2023 American Community Survey). A concentration measure: Australian residents as a percentage of total population. This list covers the 28 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 Australian population share by state

RANKPLACESTATEPOPAUSTRALIAN SHAREVS 2000

01Baca County, COCO3,3470.4%–

02Park County, COCO18,3140.3%–

03Grand County, COCO16,4960.3%–

04San Miguel County, COCO7,7530.3%–

05Archuleta County, COCO14,3060.2%–

06Custer County, COCO5,5900.2%–

07Pitkin County, COCO16,6250.2%–

08Eagle County, COCO54,2910.2%–

09La Plata County, COCO56,8980.2%–

10Routt County, COCO25,3290.1%–

11Kit Carson County, COCO7,0690.1%–

12Boulder County, COCO328,5600.1%–

13Douglas County, COCO399,3960.1%–

14Gunnison County, COCO17,4390.1%–

15Denver County, COCO740,6130.1%–

16Delta County, COCO32,1780.1%–

17Garfield County, COCO63,4740.1%–

18Jefferson County, COCO580,4510.1%–

19Larimer County, COCO377,2920.1%–

20Broomfield County, COCO79,1740.0%–

21Mesa County, COCO162,8450.0%–

22El Paso County, COCO757,0400.0%–

23Adams County, COCO554,6680.0%–

24Arapahoe County, COCO673,8200.0%–

25Montrose County, COCO44,5910.0%–

26Yuma County, COCO9,8960.0%–

27Fremont County, COCO50,0390.0%–

28Weld County, COCO378,4260.0%–

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