Blyth · Urban Centre

Demographics & Identity in Blyth

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

A smaller population than most similar areas defines Blyth (L), though it has grown rapidly. The town has seen a dramatic shift in its age profile, with the typical resident now 15 years younger than they were in 2011.

Open map →
📍 Blyth, Urban Centre

Where Blyth sits — Total population

442 ▲ +110.5%
  • 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 Blyth — lower than 70% of areas.

Total population compared with the state and national average
Blyth442
5462, SA 518
South Australia 1,781,516
Australia 25,422,788

Population

How many people, and the typical age.

The population more than doubled since 2011, adding about 232 people to reach a total of 442. The typical resident is now 41, which is noticeably older than the Australian figure of 38.

442 ▲ +110.5%

Lower than 70% of urban centre areas.

  • 2011: 210
  • 2016: 245
  • 2021: 442

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

41 yrs ▼ -26.8%

Younger than 64% of urban centre areas.

  • 2011: 56 yrs
  • 2016: 55 yrs
  • 2021: 41 yrs

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

Age profile

How the population splits across age groups.

Children under 15 now make up 18.3% of the area, a rise of 8.1 points since 2011. This increase in young people is mirrored by a drop in seniors, who fell 10 points to 19.7% over the same period.

19.7% ▼ -33.9%

Lower than 59% of urban centre areas.

  • 2011: 29.8%
  • 2016: 32.2%
  • 2021: 19.7%

Share of the population aged 65 years and over.

18.3% ▲ +79.1%

Higher than 56% of urban centre areas.

  • 2011: 10.2%
  • 2016: 13.9%
  • 2021: 18.3%

Share of the population aged under 15 years.

Age structure

View on map →

Blyth splits fairly evenly between Older adults (45–64) (26%) and Young adults (25–44) (24%), with Seniors (65+) at 20%.

Identity & relationships

First Nations identity and marital status.

About 3.2% of the population are Aboriginal and Torres Strait Islander people, which is about the same as the national figure. Most residents are married (49.0%), while those in de facto relationships rose to 12.9% since 2011.

12.9% ▲ +39.4%

Lower than 51% of urban centre areas.

  • 2011: 9.3%
  • 2016: 9.2%
  • 2021: 12.9%

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

Marital status

View on map →

In Blyth, the largest group is Married at 50%, followed by Never married (35%) and Divorced (8%).

Age & sex structure

  • 85+: 85+: 0 males; 85+: 4 females
  • 80–84: 80–84: 3 males; 80–84: 5 females
  • 75–79: 75–79: 12 males; 75–79: 15 females
  • 70–74: 70–74: 8 males; 70–74: 12 females
  • 65–69: 65–69: 21 males; 65–69: 14 females
  • 60–64: 60–64: 9 males; 60–64: 12 females
  • 55–59: 55–59: 29 males; 55–59: 25 females
  • 50–54: 50–54: 13 males; 50–54: 5 females
  • 45–49: 45–49: 9 males; 45–49: 14 females
  • 40–44: 40–44: 15 males; 40–44: 11 females
  • 35–39: 35–39: 14 males; 35–39: 10 females
  • 30–34: 30–34: 9 males; 30–34: 10 females
  • 25–29: 25–29: 11 males; 25–29: 21 females
  • 20–24: 20–24: 16 males; 20–24: 13 females
  • 15–19: 15–19: 20 males; 15–19: 10 females
  • 10–14: 10–14: 15 males; 10–14: 16 females
  • 5–9: 5–9: 16 males; 5–9: 7 females
  • 0–4: 0–4: 19 males; 0–4: 10 females

Sources

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

More for Blyth

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Blyth [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/ucl/UCL422008/blyth/topic/demographics-identity