RANKING · 2024 ACS · 15 SHOWN OF 15

Highest Australian population share, Montana counties

Montana 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 15 counties in Montana that qualify, ranked against each other statewide.

Australian Americans: full group profile →

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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

01Lake County, MTMT33,3920.2%+0.2 pts

02Teton County, MTMT6,4960.2%–

03Gallatin County, MTMT128,7400.2%+0.2 pts

04Mineral County, MTMT5,1850.2%–

05Golden Valley County, MTMT8440.1%–

06Flathead County, MTMT115,4290.1%+0.1 pts

07Beaverhead County, MTMT10,0430.1%–

08Roosevelt County, MTMT10,2420.1%–

09Richland County, MTMT11,3770.0%–

10Yellowstone County, MTMT172,6920.0%−0.0 pts

11Silver Bow County, MTMT36,1180.0%−0.1 pts

12Missoula County, MTMT123,5130.0%–

13Lewis and Clark County, MTMT75,3310.0%−0.1 pts

14Cascade County, MTMT85,0290.0%–

15Sanders County, MTMT14,0620.0%–

SHOWING 1–15 OF 15

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