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 totals represent responses rather than a single unduplicated person count.
- 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 Onkaparinga (C) were English, Australian and Scottish.
Section overview
Ancestry - Ranked by size
Onkaparinga (C) - Total persons (Usual residence)
This table summarises ancestry for Onkaparinga (C) in 2021 for persons, with comparison against Greater Adelaide and change since 2016.
Ancestry - Ranked by size snapshot
2021 distribution by category for Onkaparinga (C), with comparison markers for Greater Adelaide.
English
2021 count
84,887
% of total
24.2%
Change from 2016
+0.3pp
84,887
24.2%
+0.3pp
Australian
2021 count
66,033
% of total
18.8%
Change from 2016
0.0pp
66,033
18.8%
0.0pp
Scottish
2021 count
17,504
% of total
5.0%
Change from 2016
+0.2pp
17,504
5.0%
+0.2pp
Irish
2021 count
14,853
% of total
4.2%
Change from 2016
-0.1pp
14,853
4.2%
-0.1pp
German
2021 count
12,924
% of total
3.7%
Change from 2016
+0.1pp
12,924
3.7%
+0.1pp
Italian
2021 count
5,038
% of total
1.4%
Change from 2016
+0.1pp
5,038
1.4%
+0.1pp
Dutch
2021 count
4,129
% of total
1.2%
Change from 2016
+0.1pp
4,129
1.2%
+0.1pp
Australian Aboriginal
2021 count
3,252
% of total
0.9%
Change from 2016
+0.8pp
3,252
0.9%
+0.8pp
Polish
2021 count
2,049
% of total
0.6%
Change from 2016
0.0pp
2,049
0.6%
0.0pp
Welsh
2021 count
1,885
% of total
0.5%
Change from 2016
0.0pp
1,885
0.5%
0.0pp
Chart view
Ancestry - Ranked by size change
Absolute change in category counts between 2016 and 2021.
English
+5,157
+0.3pp
Australian
+3,454
0.0pp
Scottish
+1,423
+0.2pp
Irish
+359
-0.1pp
German
+881
+0.1pp
Italian
+555
+0.1pp
Dutch
+439
+0.1pp
Australian Aboriginal
+2,866
+0.8pp
Polish
+164
0.0pp
Welsh
+156
0.0pp
Data table
Ancestry for Onkaparinga (C). Ancestry - Ranked by size. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Greater Adelaide% | Count | % | Greater Adelaide% | Count | pp | |
| English | 84,887 | 24.2% | 18.4% | 79,730 | 23.9% | 18.6% | +5,157 | +0.3pp |
| Australian | 66,033 | 18.8% | 15.1% | 62,579 | 18.8% | 15.5% | +3,454 | 0.0pp |
| Scottish | 17,504 | 5.0% | 4.1% | 16,081 | 4.8% | 4.1% | +1,423 | +0.2pp |
| Irish | 14,853 | 4.2% | 3.8% | 14,494 | 4.3% | 4.0% | +359 | -0.1pp |
| German | 12,924 | 3.7% | 3.4% | 12,043 | 3.6% | 3.4% | +881 | +0.1pp |
| Italian | 5,038 | 1.4% | 3.4% | 4,483 | 1.3% | 3.4% | +555 | +0.1pp |
| Dutch | 4,129 | 1.2% | 0.8% | 3,690 | 1.1% | 0.8% | +439 | +0.1pp |
| Australian Aboriginal | 3,252 | 0.9% | 0.8% | 386 | 0.1% | 0.1% | +2,866 | +0.8pp |
| Polish | 2,049 | 0.6% | 0.7% | 1,885 | 0.6% | 0.6% | +164 | 0.0pp |
| Welsh | 1,885 | 0.5% | 0.4% | 1,729 | 0.5% | 0.4% | +156 | 0.0pp |
| Total | 350,395 | 100.0% | 100.0% | 333,513 | 100.0% | 100.0% | +16,882 | 0.0pp |
Excludes ancestries with fewer than 10 responses (multi-response).