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 Castlecrag were English, Australian and Irish.
Section overview
Ancestry - Ranked by size
Castlecrag - Total persons (Usual residence)
This table summarises ancestry for Castlecrag in 2021 for persons, with comparison against Willoughby (C) and change since 2016.
Ancestry - Ranked by size snapshot
2021 distribution by category for Castlecrag, with comparison markers for Willoughby (C).
English
2021 count
1,081
% of total
18.2%
Change from 2016
-5.7pp
1,081
18.2%
-5.7pp
Australian
2021 count
813
% of total
13.7%
Change from 2016
-7.3pp
813
13.7%
-7.3pp
Irish
2021 count
406
% of total
6.8%
Change from 2016
+4.0pp
406
6.8%
+4.0pp
Chinese
2021 count
377
% of total
6.3%
Change from 2016
+4.9pp
377
6.3%
+4.9pp
Scottish
2021 count
357
% of total
6.0%
Change from 2016
+0.3pp
357
6.0%
+0.3pp
German
2021 count
140
% of total
2.4%
Change from 2016
-0.4pp
140
2.4%
-0.4pp
Italian
2021 count
106
% of total
1.8%
Change from 2016
+0.9pp
106
1.8%
+0.9pp
Greek
2021 count
64
% of total
1.1%
Change from 2016
-
64
1.1%
-
Hungarian
2021 count
45
% of total
0.8%
Change from 2016
-
45
0.8%
-
Polish
2021 count
45
% of total
0.8%
Change from 2016
-
45
0.8%
-
Chart view
Ancestry - Ranked by size change
Absolute change in category counts between 2016 and 2021.
English
+997
-5.7pp
Australian
+739
-7.3pp
Irish
+396
+4.0pp
Chinese
+372
+4.9pp
Scottish
+337
+0.3pp
German
+130
-0.4pp
Italian
+103
+0.9pp
Dutch
+38
-0.2pp
Data table
Ancestry for Castlecrag. Ancestry - Ranked by size. 2021 and 2016 counts, percentages, and change compared with Willoughby (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Willoughby (C)% | Count | % | Willoughby (C)% | Count | pp | |
| English | 1,081 | 18.2% | 11.7% | 84 | 23.9% | 12.2% | +997 | -5.7pp |
| Australian | 813 | 13.7% | 10.0% | 74 | 21.0% | 10.1% | +739 | -7.3pp |
| Irish | 406 | 6.8% | 4.3% | 10 | 2.8% | 4.8% | +396 | +4.0pp |
| Chinese | 377 | 6.3% | 13.2% | 5 | 1.4% | 12.1% | +372 | +4.9pp |
| Scottish | 357 | 6.0% | 3.5% | 20 | 5.7% | 3.4% | +337 | +0.3pp |
| German | 140 | 2.4% | 1.2% | 10 | 2.8% | 1.2% | +130 | -0.4pp |
| Italian | 106 | 1.8% | 1.6% | 3 | 0.9% | 1.6% | +103 | +0.9pp |
| Greek | 64 | 1.1% | 0.6% | - | - | 0.6% | - | - |
| Hungarian | 45 | 0.8% | 0.3% | - | - | 0.3% | - | - |
| Polish | 45 | 0.8% | 0.4% | - | - | 0.4% | - | - |
| Total | 5,938 | 100.0% | 100.0% | 352 | 100.0% | 100.0% | +5,586 | 0.0pp |
Excludes ancestries with fewer than 10 responses (multi-response).