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 (2024 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 2010

01Baca County, COCO3,3470.4%–

02Park County, COCO18,3140.3%–

03Grand County, COCO16,4960.3%−0.1 pts

04San Miguel County, COCO7,7530.3%−0.6 pts

05Archuleta County, COCO14,3060.2%–

06Custer County, COCO5,5900.2%–

07Pitkin County, COCO16,6250.2%−0.1 pts

08Eagle County, COCO54,2910.2%−0.3 pts

09La Plata County, COCO56,8980.2%+0.1 pts

10Routt County, COCO25,3290.1%−0.1 pts

11Kit Carson County, COCO7,0690.1%–

12Boulder County, COCO328,5600.1%+0.0 pts

13Douglas County, COCO399,3960.1%−0.0 pts

14Gunnison County, COCO17,4390.1%−0.2 pts

15Denver County, COCO740,6130.1%+0.0 pts

16Delta County, COCO32,1780.1%–

17Garfield County, COCO63,4740.1%–

18Jefferson County, COCO580,4510.1%+0.0 pts

19Larimer County, COCO377,2920.1%+0.0 pts

20Broomfield County, COCO79,1740.0%−0.0 pts

21Mesa County, COCO162,8450.0%−0.0 pts

22El Paso County, COCO757,0400.0%+0.0 pts

23Adams County, COCO554,6680.0%+0.0 pts

24Arapahoe County, COCO673,8200.0%−0.0 pts

25Montrose County, COCO44,5910.0%–

26Yuma County, COCO9,8960.0%−0.0 pts

27Fremont County, COCO50,0390.0%−0.0 pts

28Weld County, COCO378,4260.0%−0.0 pts

SHOWING 1–28 OF 28

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES