Largest Australian population, US counties
US counties ranked by the number of residents who are Australian ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. Los Angeles County, California leads at 4,710. 1,083 counties qualify in total. California carries 9 of the top 25 entries. The median across all 1,083 is 25. Biggest climber in the top 100 since 2020: Dorchester County, SC, up 382 places to #62.
Australian Americans: full group profile →UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES
Frequently asked
Which county has the highest australian population?
Los Angeles County, California ranks #1 with 4,710 (2024 American Community Survey).
What are the top 5 counties by australian population?
Los Angeles County, California, New York County, New York, Cook County, Illinois, Kings County, New York, King County, Washington.
How many counties are in this ranking?
1,083 counties qualify after filtering for population minimums and data availability. The ranking covers 2024 ACS 5-year data.
How is australian population measured?
Number of residents who are Australian ancestry (Ancestry, ACS detailed tables). Source: US Census Bureau, American Community Survey 5-year estimates (2024).