Flagstaff Hill · Suburb / Locality

Demographics & Identity in Flagstaff Hill

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

More than half of the 10,184 people in Flagstaff Hill are married, making it a stable residential hub. The area is noticeably older than the national average, with a typical resident aged 43. This mix of established adults and families creates a balanced community structure.

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📍 Flagstaff Hill, Suburb / Locality

Where Flagstaff Hill sits — Total population

10,184 ▲ +3.4%
  • 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 Flagstaff Hill — higher than 87% of areas.

Total population compared with the state and national average
Flagstaff Hill10,184
5159, SA 33,635
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

Flagstaff Hill is among the largest areas at its level with 10,184 residents. The typical person here is 43, which is a little older than the South Australian average and noticeably older than the national figure.

10,184 ▲ +3.4%

Higher than 87% of suburb / locality areas.

  • 2011: 9,850
  • 2016: 9,950
  • 2021: 10,184

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

43 yrs ▲ +4.9%

Younger than 57% of suburb / locality areas.

  • 2011: 41 yrs
  • 2016: 42 yrs
  • 2021: 43 yrs

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

Age profile

How the population splits across age groups.

The age profile is evenly spread, with older adults (45–64) making up the largest group at 28%. Children under 15 and seniors aged 65 and over both sit around 17% to 20%, which is about the same as the state and national figures.

19.9% ▲ +72.8%

Higher than 55% of suburb / locality areas.

  • 2011: 11.5%
  • 2016: 17.0%
  • 2021: 19.9%

Share of the population aged 65 years and over.

17.3% ▼ -6.4%

Higher than 51% of suburb / locality areas.

  • 2011: 18.5%
  • 2016: 17.5%
  • 2021: 17.3%

Share of the population aged under 15 years.

Age structure

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In Flagstaff Hill, the largest group is Older adults (45–64) at 28%, followed by Young adults (25–44) (23%) and Seniors (65+) (20%).

Identity & relationships

First Nations identity and marital status.

Married people make up 57.2% of the population, while those in de facto relationships are at 10.0%, which is a little below the national figure. Those identifying as Aboriginal and Torres Strait Islander make up 0.8%, which is lower than most areas.

0.8% ▲ +324.4%

Lower than 63% of suburb / locality areas.

  • 2011: 0.2%
  • 2016: 0.7%
  • 2021: 0.8%

Share of people who identify as Aboriginal and/or Torres Strait Islander.

10.0% ▲ +37.5%

Lower than 67% of suburb / locality areas.

  • 2011: 7.3%
  • 2016: 8.2%
  • 2021: 10.0%

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

Marital status

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In Flagstaff Hill, Married is the majority at 57%; Never married is next at 29%.

Age & sex structure

  • 85+: 85+: 73 males; 85+: 85 females
  • 80–84: 80–84: 99 males; 80–84: 89 females
  • 75–79: 75–79: 217 males; 75–79: 192 females
  • 70–74: 70–74: 331 males; 70–74: 342 females
  • 65–69: 65–69: 297 males; 65–69: 314 females
  • 60–64: 60–64: 342 males; 60–64: 358 females
  • 55–59: 55–59: 365 males; 55–59: 344 females
  • 50–54: 50–54: 369 males; 50–54: 368 females
  • 45–49: 45–49: 331 males; 45–49: 374 females
  • 40–44: 40–44: 333 males; 40–44: 345 females
  • 35–39: 35–39: 303 males; 35–39: 337 females
  • 30–34: 30–34: 270 males; 30–34: 267 females
  • 25–29: 25–29: 223 males; 25–29: 221 females
  • 20–24: 20–24: 288 males; 20–24: 300 females
  • 15–19: 15–19: 332 males; 15–19: 305 females
  • 10–14: 10–14: 340 males; 10–14: 319 females
  • 5–9: 5–9: 344 males; 5–9: 256 females
  • 0–4: 0–4: 253 males; 0–4: 251 females

Sources

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

More for Flagstaff Hill

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Flagstaff Hill [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sal/SAL40444/flagstaff-hill/topic/demographics-identity