Ranking of Colorado 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 2.81K people in Colorado with Australian ancestry. Among all Colorado counties, Douglas County had the highest population with Australian ancestry (457), followed by Arapahoe County (393), and Boulder County (317).
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 Colorado.
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Related Topics: Colorado ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Colorado Counties By Population with Australian Ancestry in 2021
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| Rank | County | Population |
|---|---|---|
| 1 | Douglas County | 457 |
| 2 | Arapahoe County | 393 |
| 3 | Boulder County | 317 |
| 4 | Jefferson County | 294 |
| 5 | El Paso County | 284 |
| 6 | Denver County | 281 |
| 7 | Adams County | 206 |
| 8 | Larimer County | 197 |
| 9 | Mesa County | 65 |
| 10 | Eagle County | 57 |
| 11 | Lake County | 37 |
| 12 | Logan County | 31 |
| 13 | Pitkin County | 28 |
| 13 | San Miguel County | 28 |
| 14 | Weld County | 27 |
| 15 | Baca County | 18 |
| 15 | Park County | 18 |
| 16 | La Plata County | 14 |
| 17 | Delta County | 13 |
| 18 | Archuleta County | 11 |
| 19 | Broomfield County | 9 |
| 20 | Garfield County | 8 |
| 20 | Montezuma County | 8 |
| 21 | Kit Carson County | 6 |
| 22 | Custer County | 2 |
| 22 | Huerfano County | 2 |
| 23 | Ouray County | 1 |