St Marys · Urban Centre

Demographics & Identity in St Marys

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

A typical resident in St Marys (L) is now 55, making the area far older than the state and national figures. This shift is clear in the local population, which grew by 60% since 2011 to reach 494 people, while the age of the community climbed by 11 years over the last decade.

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📍 St Marys, Urban Centre

Where St Marys sits — Total population

494 ▲ +60.4%
  • 1–2: 3 areas
  • 2–3: 0 areas
  • 3–5: 0 areas
  • 5–9: 0 areas
  • 9–16: 2 areas
  • 16–27: 1 area
  • 27–47: 2 areas
  • 47–81: 2 areas
  • 81–139: 14 areas
  • 139–241: 145 areas
  • 241–418: 340 areas
  • 418–723: 351 areas
  • 723–1,252: 304 areas
  • 1,252–2,168: 191 areas
  • 2,168–3,752: 181 areas
  • 3,752–6,495: 107 areas
  • 6,495–11,242: 69 areas
  • 11,242–19,459: 44 areas
  • 19,459–33,683: 31 areas
  • 33,683–58,304: 17 areas
  • 58,304–100,921: 8 areas
  • 100,921–174,689: 8 areas
  • 174,689–302,378: 4 areas
  • 302,378–523,401: 5 areas
  • 523,401–905,982: 2 areas
  • 905,982–1,568,210: 1 area
  • 1,568,210–2,714,494: 2 areas
  • 2,714,494–4,698,656: 2 areas

All urban centre areas, 2021. The marker is St Marys — lower than 67% of areas.

Total population compared with the state and national average
St Marys494
7215, TAS 4,066
Tasmania 557,571
Australia 25,422,788

Population

How many people, and the typical age.

The population has grown significantly, adding about 186 people since 2011. However, the typical resident is now 55, which is far older than the Tasmanian figure of 42 and the national figure of 38.

494 ▲ +60.4%

Lower than 67% of urban centre areas.

  • 2011: 308
  • 2016: 472
  • 2021: 494

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

55 yrs ▲ +25.0%

Older than 83% of urban centre areas.

  • 2011: 44 yrs
  • 2016: 61 yrs
  • 2021: 55 yrs

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

Age profile

How the population splits across age groups.

Seniors aged 65 and over make up 30.4% of the area, a figure far above the Australian average. This is consistent with a sharp decline in children under 15, who now make up only 13.2% of the population.

30.4% ▲ +58.5%

Higher than 76% of urban centre areas.

  • 2011: 19.2%
  • 2016: 43.6%
  • 2021: 30.4%

Share of the population aged 65 years and over.

13.2% ▼ -41.3%

Lower than 81% of urban centre areas.

  • 2011: 22.4%
  • 2016: 6.8%
  • 2021: 13.2%

Share of the population aged under 15 years.

Age structure

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In St Marys, the largest group is Older adults (45–64) at 37%, followed by Seniors (65+) (30%) and Children (0–14) (13%).

Identity & relationships

First Nations identity and marital status.

About 2.4% of residents identify as Aboriginal or Torres Strait Islander, which is a little below the Tasmanian figure. In terms of relationships, 46% of people are married and 12.8% are in a de facto partnership.

2.4% ▼ -62.8%

Lower than 71% of urban centre areas.

  • 2011: 6.5%
  • 2016: 0.6%
  • 2021: 2.4%

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

12.8% ▲ +54.8%

Lower than 53% of urban centre areas.

  • 2011: 8.3%
  • 2016: 5.2%
  • 2021: 12.8%

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

Marital status

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In St Marys, the largest group is Married at 45%, followed by Never married (32%) and Divorced (13%).

Age & sex structure

  • 85+: 85+: 7 males; 85+: 9 females
  • 80–84: 80–84: 12 males; 80–84: 10 females
  • 75–79: 75–79: 17 males; 75–79: 22 females
  • 70–74: 70–74: 20 males; 70–74: 22 females
  • 65–69: 65–69: 31 males; 65–69: 17 females
  • 60–64: 60–64: 29 males; 60–64: 24 females
  • 55–59: 55–59: 17 males; 55–59: 22 females
  • 50–54: 50–54: 22 males; 50–54: 24 females
  • 45–49: 45–49: 11 males; 45–49: 15 females
  • 40–44: 40–44: 7 males; 40–44: 9 females
  • 35–39: 35–39: 9 males; 35–39: 7 females
  • 30–34: 30–34: 0 males; 30–34: 10 females
  • 25–29: 25–29: 8 males; 25–29: 4 females
  • 20–24: 20–24: 14 males; 20–24: 14 females
  • 15–19: 15–19: 11 males; 15–19: 3 females
  • 10–14: 10–14: 18 males; 10–14: 11 females
  • 5–9: 5–9: 13 males; 5–9: 13 females
  • 0–4: 0–4: 9 males; 0–4: 5 females

Sources

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

More for St Marys

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in St Marys [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/ucl/UCL622023/st-marys/topic/demographics-identity