Australian Population in Nassau County, FL by City : 2025 Ranking & Insights

While the Australian population in Nassau County, FL totals 29 residents, none of the three incorporated cities in Nassau County included in this analysis*- Callahan, Fernandina Beach, or Hilliard - report any. This indicates that the entire Australian population lives outside city boundaries, likely spread across unincorporated communities and rural areas within Nassau County. Below, we explore what this rural concentration tells us about demographic patterns across Florida.

Top 5 cities with the largest Australian population in Nassau County

View All
  • 1
    Callahan
    Australian population in Callahan is 0
    - of Callahan population is Australian
  • 2
    Fernandina Beach
    Australian population in Fernandina Beach is 0
    - of Fernandina Beach population is Australian
  • 3
    Hilliard
    Australian population in Hilliard is 0
    - of Hilliard population is Australian

Overview of Australian population in Nassau County

  • Population Count and Percentage: American Community Survey data document Nassau County with 29 Australian residents (0.031% of 94,653 total county population), positioning the jurisdiction at the 83rd percentile nationally among counties and 51st percentile within Florida for Australian population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS data documents Nassau County's Australian demographic representation of 0.031%, exceeding the national average of 0.029% while remaining below Florida's elevated state average of 0.032%, placing the county above national concentration levels while below state demographic averages.
  • Share of Total State Population: Official American Community Survey data indicates Nassau County contains 29 Australian residents, representing less than 1% of Florida's total Australian population of 6,911.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey indicate Nassau County's density of 0.045 Australian Americans per square mile remains below Florida's average of 0.13 per square mile, with relatively sparse community distribution compared to state demographic concentrations.
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Nassau County Cities Ranked by Australian Population

View Methodology
American Community Survey [1] findings document zero Australian population in Callahan, Fernandina Beach, or Hilliard — the three incorporated cities in Nassau County included in this analysis*. The table below provides broader statistics, including total population figures, density measures, and demographic distributions based on the current ACS data.
cities in Nassau County, FL ranked by Australian population count
Rank by Australian Population
City
Australian Population
% of Total City Population
% of Total Nassau County Australian Population
5 Year Rank Trend
1 Callahan 0 - -
1 Fernandina Beach 0 - -
1 Hilliard 0 - -
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Methodology

This ranking list is based on data from the American Community Survey (ACS) 5-Year Estimates, conducted by the U.S. Census Bureau. The ACS is one of the most reliable sources for understanding population trends across different locations, and it provides estimates for various racial and ethnic groups at city, county, state and all geography levels down to the Census block group.
This list ranks city in Nassau County, FL by their Australian population, using the most recent ACS data available.

How the Census defines Australian population

The U.S. Census Bureau allows people to self-identify their ancestry, meaning individuals can write upto ancestries when responding to the survey. In this ranking, we include everyone who identifies as having Australian ancestry, whether alone or in combination with another ancestry.
Here are a few important things to know about how ancestry is reported:
  • Some people identify as Australian alone, while others identify as Australian along with another race (such as Australian and German).
  • We’ve used the “Australian alone or in any combination” category unless noted otherwise, which gives a broader picture of the Australian population in each area.

How We Ranked the Data

This ranking is based on the total number of people who identified as Australian alone or in combination in city. To provide additional context, we’ve also included two key percentages:
  1. % of Total City Population – This shows what percentage of the total state population identifies as Australian .
  2. % of Total Nassau County Australian Population – This tells us how much of the entire U.S. Australian population lives in that state.
To keep things simple, all population numbers have been rounded to the nearest whole number, and percentages are rounded to one decimal place. Because of rounding, some percentages may not add up to exactly 100%.

Things to Keep in Mind

Like all survey-based data, ACS estimates come with some limitations. Here are a few things to be aware of:
  • In places with very small Australian populations, the numbers may not be reported at all due to privacy protections or sampling variability in the survey.
  • Since the ACS is based on a sample, the numbers are estimates, not exact counts. That means they may slightly differ from other sources like the decennial U.S. Census.
  • City that don’t have any reported Australian population are not included in the ranking but are listed separately below for reference.
This ranking is meant to provide a clear, data-driven look at where Australian populations are most concentrated while keeping the numbers easy to understand.

Sources

  1. 2019-2023 5-Year Estimates.
  2. 2023.