Thornleigh · Suburb / Locality

Family & Households in Thornleigh

How families and households are made up across the area.

Couples with children make up 69.2% of families in Thornleigh, making it a strong hub for family life. This is reflected in the homes, where the typical household size of 2.9 people is much higher than in most other areas.

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📍 Thornleigh, Suburb / Locality

Where Thornleigh sits — Average household size

2.9 → 0.0%
  • 1.5–1.6: 490 areas
  • 1.6–1.8: 168 areas
  • 1.8–1.9: 642 areas
  • 1.9–2.1: 816 areas
  • 2.1–2.2: 1854 areas
  • 2.2–2.4: 1319 areas
  • 2.4–2.5: 2753 areas
  • 2.5–2.7: 1349 areas
  • 2.7–2.8: 2332 areas
  • 2.8–3.0: 805 areas
  • 3.0–3.1: 1044 areas
  • 3.1–3.3: 289 areas
  • 3.3–3.4: 386 areas
  • 3.4–3.6: 110 areas
  • 3.6–3.7: 85 areas
  • 3.7–3.9: 40 areas
  • 3.9–4.0: 258 areas

All suburb / locality areas, 2021. The marker is Thornleigh — higher than 81% of areas.

Average household size compared with the state and national average
Thornleigh2.9
2120, NSW 2.9
New South Wales 2.6
Australia 2.5

Households

Average household size.

Thornleigh has far fewer people living alone than the national figure, with only 16.2% of households being single-person. This helps explain why the number of people per home is a little above both the state and national figures.

2.9 → 0.0%

Higher than 81% of suburb / locality areas.

  • 2011: 2.9
  • 2016: 3.0
  • 2021: 2.9

Average number of people usually resident per household.

16.2% ▲ +4.0%

Lower than 77% of suburb / locality areas.

  • 2011: 15.6%
  • 2016: 14.9%
  • 2021: 16.2%

Share of households that are a single person living alone.

Household size

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Thornleigh splits fairly evenly between 2 people (28%) and 4 people (24%), with 3 people at 20%.

Families

Family types and one-parent families.

One-parent families account for 11.2% of the total, which is a little below the figures for New South Wales and Australia. Most families here are couples, with 18.8% having no children.

11.2% ▲ +7.0%

Higher than 52% of suburb / locality areas.

  • 2011: 10.5%
  • 2016: 10.3%
  • 2021: 11.2%

Share of people who live in one-parent families.

Family composition

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In Thornleigh, Couples with children is the majority at 69%; Couples without children is next at 19%.

Sources

  • Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).

More for Thornleigh

Cite this page

Australian Bureau of Statistics. (2021). Family & Households in Thornleigh [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL13866/thornleigh/topic/family-households