Cultural diversity
Ancestry
About this topic
Ancestry describes a person's cultural association and ethnic background, and Census respondents can report more than one ancestry. It is a broader cultural measure than country of birth because it can reflect family heritage across generations.
This topic helps show the size and diversity of cultural groups in an area, including groups whose members were born in Australia. Because multiple ancestries can be reported, ancestry totals can exceed the total population, so it is best read with birthplace, language used at home, and religion.
Interpretation notes
- People can report up to two ancestries, so category counts represent responses rather than a single unduplicated person count, while percentages are shown against the total population.
- ABS advises that ancestry is best used with birthplace and language, because ancestry alone is a broad measure of ethnicity and cultural background.
- The 2021 form added separate Aboriginal and Torres Strait Islander mark boxes, so those categories need caution in over-time comparison.
Key insight
In 2021, the largest ancestry groups among residents in Noarlunga Downs were English, Australian and Scottish.
Section overview
Ancestry - Ranked by size
Noarlunga Downs - Total persons (Usual residence)
This table summarises ancestry for Noarlunga Downs in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Ancestry - Ranked by size snapshot
2021 distribution by category for Noarlunga Downs, with comparison markers for Onkaparinga (C).
English
Australian
Scottish
Irish
German
Australian Aboriginal
Dutch
Italian
Greek
Polish
Chart view
Ancestry - Ranked by size change
Absolute change in category counts between 2016 and 2021.
English
+25
-1.6pp
Australian
+156
+2.2pp
Scottish
-40
-1.5pp
Irish
-20
-0.9pp
German
+28
+0.4pp
Australian Aboriginal
+115
+2.9pp
Dutch
+15
+0.3pp
Italian
+8
+0.1pp
Greek
+21
+0.4pp
Polish
-1
-0.1pp
Data table
Ancestry for Noarlunga Downs. Ancestry - Ranked by size. 2021 and 2016 counts, percentages, and change compared with Onkaparinga (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Onkaparinga (C)% | Count | % | Onkaparinga (C)% | Count | pp | |
| English | 1,901 | 47.2% | 48.5% | 1,876 | 48.8% | 47.8% | +25 | -1.6pp |
| Australian | 1,531 | 38.0% | 37.7% | 1,375 | 35.8% | 37.5% | +156 | +2.2pp |
| Scottish | 348 | 8.6% | 10.0% | 388 | 10.1% | 9.6% | -40 | -1.5pp |
| Irish | 305 | 7.6% | 8.5% | 325 | 8.5% | 8.7% | -20 | -0.9pp |
| German | 255 | 6.3% | 7.4% | 227 | 5.9% | 7.2% | +28 | +0.4pp |
| Australian Aboriginal | 132 | 3.3% | 1.9% | 17 | 0.4% | 0.2% | +115 | +2.9pp |
| Dutch | 108 | 2.7% | 2.4% | 93 | 2.4% | 2.2% | +15 | +0.3pp |
| Italian | 105 | 2.6% | 2.9% | 97 | 2.5% | 2.7% | +8 | +0.1pp |
| Greek | 50 | 1.2% | 1.0% | 29 | 0.8% | 1.0% | +21 | +0.4pp |
| Polish | 50 | 1.2% | 1.2% | 51 | 1.3% | 1.1% | -1 | -0.1pp |
Excludes ancestries with fewer than 10 responses (multi-response).