Cultural diversity
Language spoken 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 Blue Mountains (C), accounting for 90.1% (70,398 people). This share was higher than Greater Sydney (57.3%). Since 2016, the biggest change was in English, which increased by 1,705 people and 0.7 percentage points.
Section overview
Language used at home - Ranked by size
Blue Mountains (C) - Total persons (Usual residence)
This table summarises language spoken at home for Blue Mountains (C) in 2021 for persons, with comparison against Greater Sydney and change since 2016.
Language used at home - Ranked by size snapshot
2021 distribution by category for Blue Mountains (C), with comparison markers for Greater Sydney.
English
Not stated
Spanish
German
Mandarin
French
Italian
Polish
Greek
Russian
Chart view
Language used at home - Ranked by size change
Absolute change in category counts between 2016 and 2021.
English
+1,705
+0.7pp
Not stated
-839
-1.2pp
Spanish
+91
+0.1pp
German
-32
0.0pp
Mandarin
-18
-0.1pp
French
+6
0.0pp
Italian
-73
-0.1pp
Polish
+16
+0.1pp
Greek
-49
-0.1pp
Russian
+22
0.0pp
Data table
Language spoken at home for Blue Mountains (C). Language used at home - Ranked by size. 2021 and 2016 counts, percentages, and change compared with Greater Sydney.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Greater Sydney% | Count | % | Greater Sydney% | Count | pp | |
| English | 70,398 | 90.1% | 57.3% | 68,693 | 89.4% | 58.4% | +1,705 | +0.7pp |
| Not stated | 2,662 | 3.4% | 5.3% | 3,501 | 4.6% | 5.8% | -839 | -1.2pp |
| Spanish | 489 | 0.6% | 1.2% | 398 | 0.5% | 1.2% | +91 | +0.1pp |
| German | 383 | 0.5% | 0.3% | 415 | 0.5% | 0.3% | -32 | 0.0pp |
| Mandarin | 256 | 0.3% | 5.0% | 274 | 0.4% | 4.7% | -18 | -0.1pp |
| French | 242 | 0.3% | 0.4% | 236 | 0.3% | 0.4% | +6 | 0.0pp |
| Italian | 202 | 0.3% | 1.0% | 275 | 0.4% | 1.3% | -73 | -0.1pp |
| Polish | 196 | 0.3% | 0.2% | 180 | 0.2% | 0.3% | +16 | +0.1pp |
| Greek | 175 | 0.2% | 1.4% | 224 | 0.3% | 1.6% | -49 | -0.1pp |
| Russian | 172 | 0.2% | 0.4% | 150 | 0.2% | 0.4% | +22 | 0.0pp |
| Total | 78,105 | 100.0% | 100.0% | 76,878 | 100.0% | 100.0% | +1,227 | 0.0pp |
Excludes languages spoken at home by fewer than 10 people.