Ranking of Montana Counties By Population with Australian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 399 people in Montana with Australian ancestry. Among all Montana counties, Gallatin County had the highest population with Australian ancestry (185), followed by Flathead County (62), and Lake County (48).

The chart and table below shows the top 10 counties with high number of people with Australian ancestry.

You can see similar information for other states and for other ancestry groups in Montana.

Data Source: US Census Bureau.
Ranking of Montana Counties By Population with Australian Ancestry in 2021
Gallatin County
Flathead County
Lake County
Mineral County
Missoula County
Cascade County
Park County
Richland County
Yellowstone County
Teton County
Ranking of Montana Counties By Population with Australian Ancestry in 2021
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Rank County Population
1 Gallatin County 185
2 Flathead County 62
3 Lake County 48
4 Mineral County 20
4 Missoula County 20
5 Cascade County 17
6 Park County 10
7 Richland County 8
7 Yellowstone County 8
8 Teton County 6
9 Beaverhead County 5
10 Lewis and Clark County 3
11 Daniels County 2
11 Golden Valley County 2
11 Roosevelt County 2
12 Sanders County 1