Cultural diversity
Language used at home
About this topic
Language used at home shows which languages people speak in their home life and whether English or another language is used most often. It is a key indicator of cultural diversity and language retention within communities.
This topic is useful for planning communication, multicultural services, and local engagement. It should be analysed together with proficiency in English and birthplace, because language alone does not show migration history or support needs.
Interpretation notes
- The Census records the language used most often at home, so it does not capture every language a person can speak.
- Language used at home is not a measure of English proficiency, literacy, or migration history on its own.
Key insight
In 2021, English was the most common language used at home among residents in Port Noarlunga, accounting for 91.4% (2,959 people). This share was higher than Onkaparinga (C) (89%). Since 2016, the biggest change was in English, which decreased by 6,091 people, while its share rose by 23.1 percentage points.
Section overview
Language used at home - Ranked by size
Port Noarlunga - Total persons (Usual residence)
This table summarises language used at home for Port Noarlunga in 2021 for persons, with comparison against Onkaparinga (C) and change since 2016.
Language used at home - Ranked by size snapshot
2021 distribution by category for Port Noarlunga, with comparison markers for Onkaparinga (C).
English
2021 count
2,959
% of total
91.4%
Change from 2016
+23.1pp
2,959
91.4%
+23.1pp
Not stated
2021 count
93
% of total
2.9%
Change from 2016
-1.6pp
93
2.9%
-1.6pp
German
2021 count
14
% of total
0.4%
Change from 2016
0.0pp
14
0.4%
0.0pp
Gujarati
2021 count
12
% of total
0.4%
Change from 2016
-1.2pp
12
0.4%
-1.2pp
Dutch
2021 count
11
% of total
0.3%
Change from 2016
+0.2pp
11
0.3%
+0.2pp
Afrikaans
2021 count
11
% of total
0.3%
Change from 2016
+0.3pp
11
0.3%
+0.3pp
Greek
2021 count
10
% of total
0.3%
Change from 2016
-4.7pp
10
0.3%
-4.7pp
Italian
2021 count
10
% of total
0.3%
Change from 2016
-3.3pp
10
0.3%
-3.3pp
Polish
2021 count
10
% of total
0.3%
Change from 2016
-0.1pp
10
0.3%
-0.1pp
Vietnamese
2021 count
10
% of total
0.3%
Change from 2016
-2.0pp
10
0.3%
-2.0pp
Chart view
Language used at home - Ranked by size change
Absolute change in category counts between 2016 and 2021.
English
-6,091
+23.1pp
Not stated
-507
-1.6pp
German
-39
0.0pp
Gujarati
-201
-1.2pp
Dutch
-4
+0.2pp
Afrikaans
+5
+0.3pp
Greek
-651
-4.7pp
Italian
-464
-3.3pp
Polish
-40
-0.1pp
Vietnamese
-300
-2.0pp
Data table
Language used at home for Port Noarlunga. Language used at home - 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 | 2,959 | 91.4% | 89.0% | 9,050 | 68.3% | 88.3% | -6,091 | +23.1pp |
| Not stated | 93 | 2.9% | 3.9% | 600 | 4.5% | 5.0% | -507 | -1.6pp |
| German | 14 | 0.4% | 0.4% | 53 | 0.4% | 0.5% | -39 | 0.0pp |
| Gujarati | 12 | 0.4% | 0.0% | 213 | 1.6% | 0.0% | -201 | -1.2pp |
| Dutch | 11 | 0.3% | 0.1% | 15 | 0.1% | 0.3% | -4 | +0.2pp |
| Afrikaans | 11 | 0.3% | 0.2% | 6 | 0.0% | 0.2% | +5 | +0.3pp |
| Greek | 10 | 0.3% | 0.3% | 661 | 5.0% | 0.4% | -651 | -4.7pp |
| Italian | 10 | 0.3% | 0.3% | 474 | 3.6% | 0.4% | -464 | -3.3pp |
| Polish | 10 | 0.3% | 0.4% | 50 | 0.4% | 0.4% | -40 | -0.1pp |
| Vietnamese | 10 | 0.3% | 0.1% | 310 | 2.3% | 0.1% | -300 | -2.0pp |
| Total | 3,236 | 100.0% | 100.0% | 13,242 | 100.0% | 100.0% | -10,006 | 0.0pp |
Excludes languages spoken at home by fewer than 10 people.