Ranking of Louisiana Counties By Percentage of Population with Australian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 590 people in Louisiana with Australian ancestry (0.01% of Louisiana population). Among all Louisiana counties, St. Charles Parish had the highest percentage of its population with Australian ancestry (0.16%), followed by Terrebonne Parish (0.06%), and Lincoln Parish (0.05%).

The chart and table below shows the top 10 counties with high percentage of its population having Australian ancestry.

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

Data Source: US Census Bureau.
Ranking of Louisiana Counties By Percentage of Population with Australian Ancestry in 2021
St. Charles Parish
Terrebonne Parish
Lincoln Parish
Ouachita Parish
St. Tammany Parish
East Baton Rouge Parish
Lafourche Parish
Orleans Parish
Jefferson Parish
Lafayette Parish
Ranking of Louisiana Counties By Percentage of Population with Australian Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 St. Charles Parish 0.16
2 Terrebonne Parish 0.06
3 Lincoln Parish 0.05
3 Ouachita Parish 0.05
4 St. Tammany Parish 0.04
5 East Baton Rouge Parish 0.02
5 Lafourche Parish 0.02
5 Orleans Parish 0.02
6 Jefferson Parish 0.01
6 Lafayette Parish 0.01
6 Livingston Parish 0.01
7 Calcasieu Parish 0.004