Northgate · Suburb / Locality

Demographics & Identity in Northgate

Who lives here — how many people, how old they are, and how communities identify.

More than one in five residents are children under 15 in Northgate, making it a much younger area than most. The typical person here is 38, which is noticeably younger than the South Australian average. This youthful profile is reflected in the population of 3,184 people.

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📍 Northgate, Suburb / Locality

Where Northgate sits — Total population

3,184 ▼ -11.0%
  • 1–1: 689 areas
  • 1–2: 0 areas
  • 2–3: 119 areas
  • 3–5: 108 areas
  • 5–7: 243 areas
  • 7–11: 241 areas
  • 11–16: 514 areas
  • 16–24: 579 areas
  • 24–36: 898 areas
  • 36–53: 1059 areas
  • 53–79: 1168 areas
  • 79–117: 1203 areas
  • 117–174: 1171 areas
  • 174–258: 1010 areas
  • 258–384: 856 areas
  • 384–571: 670 areas
  • 571–850: 616 areas
  • 850–1,263: 567 areas
  • 1,263–1,879: 520 areas
  • 1,879–2,794: 590 areas
  • 2,794–4,154: 679 areas
  • 4,154–6,177: 585 areas
  • 6,177–9,186: 528 areas
  • 9,186–13,659: 405 areas
  • 13,659–20,311: 195 areas
  • 20,311–30,202: 96 areas
  • 30,202–44,910: 33 areas
  • 44,910–66,781: 10 areas

All suburb / locality areas, 2021. The marker is Northgate — higher than 85% of areas.

Total population compared with the state and national average
Northgate3,184
5085, SA 24,786
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The typical resident is 38 years old, which is about the same as the national figure but noticeably younger than the state average. With 3,184 people, the population is larger than about 85% of similar areas.

3,184 ▼ -11.0%

Higher than 85% of suburb / locality areas.

  • 2011: 3,578
  • 2016: 6,226
  • 2021: 3,184

The number of people who usually live in the area, counted on Census night.

38 yrs ▲ +15.2%

Younger than 77% of suburb / locality areas.

  • 2011: 33 yrs
  • 2016: 33 yrs
  • 2021: 38 yrs

Half the population is older than this age, and half younger.

Age profile

How the population splits across age groups.

Children under 15 make up 22.2% of the population, a figure well above both the state and national averages. Conversely, seniors aged 65 and over represent only 12.7%, which is much lower than in most other areas.

12.7% ▲ +119.3%

Lower than 76% of suburb / locality areas.

  • 2011: 5.8%
  • 2016: 9.6%
  • 2021: 12.7%

Share of the population aged 65 years and over.

22.2% ▼ -6.4%

Higher than 80% of suburb / locality areas.

  • 2011: 23.7%
  • 2016: 20.4%
  • 2021: 22.2%

Share of the population aged under 15 years.

Age structure

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Northgate splits fairly evenly between Young adults (25–44) (27%) and Older adults (45–64) (26%), with Children (0–14) at 22%.

Identity & relationships

First Nations identity and marital status.

The proportion of people in de facto relationships is 7.7%, which is well below the national figure. Residents identifying as Aboriginal or Torres Strait Islander make up 0.9%, a little below the state and national averages.

7.7% ▼ -16.2%

Lower than 80% of suburb / locality areas.

  • 2011: 9.2%
  • 2016: 10.1%
  • 2021: 7.7%

Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).

Marital status

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In Northgate, Married is the majority at 59%; Never married is next at 29%.

Age & sex structure

  • 85+: 85+: 8 males; 85+: 27 females
  • 80–84: 80–84: 24 males; 80–84: 19 females
  • 75–79: 75–79: 38 males; 75–79: 39 females
  • 70–74: 70–74: 57 males; 70–74: 72 females
  • 65–69: 65–69: 59 males; 65–69: 72 females
  • 60–64: 60–64: 90 males; 60–64: 91 females
  • 55–59: 55–59: 80 males; 55–59: 96 females
  • 50–54: 50–54: 103 males; 50–54: 105 females
  • 45–49: 45–49: 123 males; 45–49: 159 females
  • 40–44: 40–44: 131 males; 40–44: 121 females
  • 35–39: 35–39: 129 males; 35–39: 135 females
  • 30–34: 30–34: 86 males; 30–34: 112 females
  • 25–29: 25–29: 83 males; 25–29: 62 females
  • 20–24: 20–24: 103 males; 20–24: 85 females
  • 15–19: 15–19: 101 males; 15–19: 101 females
  • 10–14: 10–14: 164 males; 10–14: 121 females
  • 5–9: 5–9: 124 males; 5–9: 111 females
  • 0–4: 0–4: 98 males; 0–4: 93 females

Sources

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

More for Northgate

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Northgate [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL41051/northgate/topic/demographics-identity