RANKING · 2010 CENSUS · 11 SHOWN OF 11

Highest Australian population share, Montana counties · 2010

Montana 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 11 counties in Montana 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

01Lewis and Clark County, MTMT75,3310.1%–

02Silver Bow County, MTMT36,1180.1%–

03Lincoln County, MTMT22,3280.1%–

04Jefferson County, MTMT13,3290.1%–

05Madison County, MTMT10,0260.1%–

06Chouteau County, MTMT5,8650.1%–

07Flathead County, MTMT115,4290.1%–

08Lake County, MTMT33,3920.0%–

09Park County, MTMT18,2140.0%–

10Yellowstone County, MTMT172,6920.0%–

11Gallatin County, MTMT128,7400.0%–

SHOWING 1–11 OF 11

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