3235.0 - Regional Population by Age and Sex, Australia, 2018 Quality Declaration 
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 29/08/2019   
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South Australia

Median age

At June 2018, South Australia (SA) had a median age (the age at which half the population is older and half is younger) of 40.0 years. This was the second highest of all states and territories, behind Tasmania at 42.3 years.

The median age in Greater Adelaide (38.8 years) was six years lower than in the rest of the state (45.0).

The Statistical Areas Level 2 (SA2s) with the highest median ages were popular retirement destinations on the coast, including:

  • Goolwa - Port Elliot (59.0 years) and Victor Harbor (58.1) on the Fleurieu Peninsula
  • Yorke Peninsula - South (56.8), Yorke Peninsula - North (55.4) and Moonta (54.8) on the Yorke Peninsula

The areas with the lowest median ages were:
  • APY Lands in the state's north (28.2 years), which had a high proportion of Aboriginal and Torres Strait Islander population
  • Munno Para West - Angle Vale (29.0) and Davoren Park (29.3) on the northern fringe of Greater Adelaide
  • Inner-city Adelaide (29.5)

SA2s WITH OLDEST AND YOUNGEST MEDIAN AGES(a), South Australia, 2018

Median Age
SA2SA4
years

OLDEST MEDIAN AGES

Goolwa - Port ElliotSouth Australia - South East
59.0
Victor HarborSouth Australia - South East
58.1
Yorke Peninsula - SouthBarossa - Yorke - Mid North
56.8
Yorke Peninsula - NorthBarossa - Yorke - Mid North
55.4
MoontaBarossa - Yorke - Mid North
54.8

YOUNGEST MEDIAN AGES

APY LandsSouth Australia - Outback
28.2
Munno Para West - Angle ValeAdelaide - North
29.0
Davoren ParkAdelaide - North
29.3
AdelaideAdelaide - Central and Hills
29.5
Mawson Lakes - Globe Derby ParkAdelaide - North
31.7

(a) Excludes SA2s with less than 1,000 people.


Sex ratio

At June 2018 the sex ratio (the number of males per 100 females) in SA was 97.6, the lowest of all states and territories in Australia.

Greater Adelaide had more females than males (with a sex ratio of 96.7), while in the rest of SA there were more males than females (101.1).

The SA2s with the highest sex ratios in SA were:
  • Outback (162.9 males per 100 females), which covers much of the state's north-east
  • Grant (131.5) in the state's south-east
  • The mining town of Roxby Downs (130.1)

The areas with the lowest sex ratios were:
  • Warradale (86.6 males per 100 females), a southern suburb of Adelaide
  • Victor Harbor (88.1) on the Fleurieu Peninsula

SA2s WITH HIGHEST AND LOWEST SEX RATIOS(a), South Australia, 2018

Sex Ratio
SA2SA4
males per 100 females

HIGHEST SEX RATIOS

OutbackSouth Australia - Outback
162.9
GrantSouth Australia - South East
131.5
Roxby DownsSouth Australia - Outback
130.1
Murray Bridge RegionSouth Australia - South East
116.5
WaikerieSouth Australia - South East
113.9

LOWEST SEX RATIOS

WarradaleAdelaide - South
86.6
Victor HarborSouth Australia - South East
88.1
Payneham - FelixstowAdelaide - Central and Hills
88.3
Toorak GardensAdelaide - Central and Hills
89.1
Unley - ParksideAdelaide - Central and Hills
90.0

(a) Excludes SA2s with less than 1,000 people.


Age and sex distribution

Greater Adelaide had a younger age distribution than the rest of SA at June 2018.

People aged 20 to 39 years made up 28% of the population in Greater Adelaide, compared with 21% in the rest of the state. This is indicative of young adults moving to the capital city for employment or education purposes.

AGE AND SEX DISTRIBUTION (%), South Australia - 30 June 2018

Population pyramid showing proportion of population by age and sex in Greater Adelaide and rest of South Australia, 30 June 2018