Birnam · Suburb / Locality

Family & Households in Birnam

How families and households are made up across the area.

A far smaller share of people live alone in Birnam than in the rest of Australia. This sparsely populated area is shaped by large households and a strong presence of families with children, which stands in sharp contrast to state and national patterns.

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📍 Birnam, Suburb / Locality

Where Birnam sits — Average household size

2.9
  • 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 Birnam — higher than 81% of areas.

Average household size compared with the state and national average
Birnam2.9
4285, QLD 2.7
Queensland 2.5
Australia 2.5

Households

Average household size.

Homes in Birnam are larger than usual, with typically 2.9 people per dwelling compared to 2.5 nationally. Only 8.8% of people live alone, which is far below the national figure of 25.6%.

2.9

Higher than 81% of suburb / locality areas.

  • 2016: 2.4
  • 2021: 2.9

Average number of people usually resident per household.

8.8%

Lower than 95% of suburb / locality areas.

  • 2016: 25.0%
  • 2021: 8.8%

Share of households that are a single person living alone.

Household size

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In Birnam, the largest group is 2 people at 46%, followed by 4 people (23%) and 6 or more (14%).

Families

Family types and one-parent families.

Most households are families, with couples with children making up 58.7% of the total. One-parent families are much less common here at 5.4%, a figure well below the Queensland average of 15.4%.

5.4%

Lower than 76% of suburb / locality areas.

  • 2016: 7.1%
  • 2021: 5.4%

Share of people who live in one-parent families.

Family composition

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In Birnam, Couples with children is the majority at 59%; Couples without children is next at 35%.

Sources

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

More for Birnam

Cite this page

Australian Bureau of Statistics. (2021). Family & Households in Birnam [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL30262/birnam/topic/family-households