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Adelaide Primary Health NetworkCommunity profile

Northern Adelaide Local Health Network (NALHN)

Five year age groups

In 2021, the largest age group in Northern Adelaide Local Health Network (NALHN) was 35 to 39 year olds. The group that changed the most since 1991 was 55 to 59 year olds, increasing by 11,844 people.

The Age Structure of Northern Adelaide Local Health Network (NALHN) provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Northern Adelaide Local Health Network (NALHN)'s residential role and function and how it is likely to change in the future.

Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.

To get a more complete picture Northern Adelaide Local Health Network (NALHN)'s Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Q:

Derived from the Census question:

'What is the person's date of birth or age?'

Age structure - Five year age groups
Northern Adelaide Local Health Network (NALHN) - Total persons (Enumerated)20211991Change
Five year age groups (years)Number%Adelaide Primary Health Network %Number%Adelaide Primary Health Network %1991 to 2021
0 to 426,4216.45.423,4277.96.7+2,994
5 to 927,8236.85.924,3678.26.8+3,456
10 to 1426,4686.45.822,7617.76.6+3,707
15 to 1924,0365.95.624,3788.27.7-342
20 to 2427,4696.76.725,1108.58.4+2,359
25 to 2930,7437.57.125,8528.78.1+4,891
30 to 3430,7187.57.125,4128.68.2+5,306
35 to 3931,0567.67.122,7267.77.6+8,330
40 to 4426,0766.36.322,5107.67.6+3,566
45 to 4924,6556.06.217,6676.05.9+6,988
50 to 5424,7106.06.314,3584.94.8+10,352
55 to 5923,9165.86.112,0724.14.2+11,844
60 to 6421,9125.35.811,2573.84.5+10,655
65 to 6918,8594.65.29,4843.24.3+9,375
70 to 7417,0154.14.86,5962.23.4+10,419
75 to 7912,2513.03.44,5501.52.7+7,701
80 to 848,5392.12.42,3410.81.6+6,198
85 and over8,1052.02.71,0010.30.9+7,104
Total population410,772100.0100.0295,869100.0100.0+114,903
Source: Australian Bureau of Statistics, Census of Population and Housing 1991 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the five year age groups of Northern Adelaide Local Health Network (NALHN) in 2021 compared to Adelaide Primary Health Network shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).

Overall, 19.6% of the population was aged between 0 and 15, and 15.8% were aged 65 years and over, compared with 17.1% and 18.5% respectively for Adelaide Primary Health Network.

The major differences between the age structure of Northern Adelaide Local Health Network (NALHN) and Adelaide Primary Health Network were:

  • A larger percentage of persons aged 0 to 4 (6.4% compared to 5.4%)
  • A larger percentage of persons aged 5 to 9 (6.8% compared to 5.9%)
  • A smaller percentage of persons aged 85 and over (2.0% compared to 2.7%)
  • A smaller percentage of persons aged 70 to 74 (4.1% compared to 4.8%)

Emerging groups

From 1991 to 2021, Northern Adelaide Local Health Network (NALHN)'s population increased by 114,903 people (38.8%). This represents an average annual population change of 1.1% per year over the period.

The largest changes in age structure in this area between 1991 and 2021 were in the age groups:

  • 55 to 59 (+11,844 persons)
  • 60 to 64 (+10,655 persons)
  • 70 to 74 (+10,419 persons)
  • 50 to 54 (+10,352 persons)

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