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 Ilbilbie were Australian, English and Irish.
Section overview
Ancestry - Ranked by size
Ilbilbie - Total persons (Usual residence)
This table summarises ancestry for Ilbilbie in 2021 for persons, with comparison against Isaac (R) and change since 2016.
Ancestry - Ranked by size snapshot
2021 distribution by category for Ilbilbie, with comparison markers for Isaac (R).
Australian
2021 count
174
% of total
45.2%
Change from 2016
+4.5pp
174
45.2%
+4.5pp
English
2021 count
167
% of total
43.4%
Change from 2016
+3.9pp
167
43.4%
+3.9pp
Irish
2021 count
44
% of total
11.4%
Change from 2016
-0.1pp
44
11.4%
-0.1pp
Scottish
2021 count
35
% of total
9.1%
Change from 2016
-3.8pp
35
9.1%
-3.8pp
German
2021 count
23
% of total
6.0%
Change from 2016
-1.4pp
23
6.0%
-1.4pp
Australian Aboriginal
2021 count
18
% of total
4.7%
Change from 2016
-
18
4.7%
-
Italian
2021 count
17
% of total
4.4%
Change from 2016
+2.4pp
17
4.4%
+2.4pp
Maltese
2021 count
11
% of total
2.9%
Change from 2016
0.0pp
11
2.9%
0.0pp
Chart view
Ancestry - Ranked by size change
Absolute change in category counts between 2016 and 2021.
Australian
+32
+4.5pp
English
+29
+3.9pp
Irish
+4
-0.1pp
Scottish
-10
-3.8pp
German
-3
-1.4pp
Italian
+10
+2.4pp
Maltese
+1
0.0pp
Data table
Ancestry for Ilbilbie. Ancestry - Ranked by size. 2021 and 2016 counts, percentages, and change compared with Isaac (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Isaac (R)% | Count | % | Isaac (R)% | Count | pp | |
| Australian | 174 | 45.2% | 36.4% | 142 | 40.7% | 43.2% | +32 | +4.5pp |
| English | 167 | 43.4% | 33.4% | 138 | 39.5% | 34.7% | +29 | +3.9pp |
| Irish | 44 | 11.4% | 8.8% | 40 | 11.5% | 10.6% | +4 | -0.1pp |
| Scottish | 35 | 9.1% | 8.1% | 45 | 12.9% | 9.3% | -10 | -3.8pp |
| German | 23 | 6.0% | 5.0% | 26 | 7.4% | 5.3% | -3 | -1.4pp |
| Australian Aboriginal | 18 | 4.7% | 4.5% | - | - | 0.3% | - | - |
| Italian | 17 | 4.4% | 1.9% | 7 | 2.0% | 1.9% | +10 | +2.4pp |
| Maltese | 11 | 2.9% | 0.6% | 10 | 2.9% | 0.7% | +1 | 0.0pp |
Excludes ancestries with fewer than 10 responses (multi-response).