Australian Population in Lewis County, ID by City : 2025 Ranking & Insights

The Australian population in Lewis County, ID totals 3 residents, according to the most recent census estimates. However, Kamiah - the only incorporated city in Lewis County included in this analysis* - reports zero residents of Australian ancestry. This suggests that the population may be spread across unincorporated communities or smaller incorporated cities not captured in this ranking. The analysis below explores how this distribution compares to similar counties across Idaho and the U.S.

Top 5 cities with the largest Australian population in Lewis County

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  • 1
    Kamiah
    Australian population in Kamiah is 0
    - of Kamiah population is Australian

Overview of Australian population in Lewis County

  • Population Count and Percentage: American Community Survey data document Lewis County with 3 Australian residents (0.082% of 3,649 total county population), positioning the jurisdiction at the 67th percentile nationally among counties and 74th percentile within Idaho for Australian population concentrations, despite absolute population figures.
  • Comparison to State and National Averages: Census Bureau's ACS show Lewis County's Australian population of 0.082% surpassing both Idaho's state average of 0.035% and the national average of 0.029%, positioning the county as a high-concentration jurisdiction exceeding demographic benchmarks across all geographic scales.
  • Share of Total State Population: Official American Community Survey data indicates Lewis County contains 3 Australian residents, representing less than 1% of Idaho's total Australian population of 659.
  • Population Density per Square Mile: U.S. Census Bureau's American Community Survey show Lewis County maintains less than 0.01 Australian Americans per square mile, marginally below Idaho's state average of less than 0.01 per square mile, placing the county near state demographic representation levels.
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Australian Population in Lewis County — Kamiah

View Methodology
Census data [1] documents 0% of the residents in Kamiah — the only incorporated city in Lewis County included in this analysis* are Americans who have Australian ancestry. The table below provides broader statistics, including total population figures, density measures, and demographic distributions for Kamiah, based on current American Community Survey data.
cities in Lewis County, ID ranked by Australian population count
Rank by Australian Population
City
Australian Population
% of Total City Population
% of Total Lewis County Australian Population
5 Year Rank Trend
1 Kamiah 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 Lewis County, ID 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 Lewis 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.