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Redland City CouncilCommunity profile

Thornlands

Five year age groups

In 2021, the largest age group in Thornlands was 10 to 14 year olds. The group that changed the most since 2001 was 10 to 14 year olds, increasing by 885 people.

The Age Structure of Thornlands provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Thornlands'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 Thornlands'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
Thornlands - Total persons (Enumerated)20212001Change
Five year age groups (years)Number%Cleveland %Number%Cleveland %2001 to 2021
0 to 41,2426.53.14345.94.4+808
5 to 91,3637.14.46038.25.9+760
10 to 141,5328.05.96478.87.2+885
15 to 191,4417.56.16468.87.8+795
20 to 241,2106.34.54285.85.6+782
25 to 291,0585.53.63254.44.4+733
30 to 341,2666.63.83905.34.6+876
35 to 391,3597.14.45277.26.0+832
40 to 441,2426.55.26749.27.2+568
45 to 491,3707.26.66168.48.5+754
50 to 541,2746.76.85207.18.1+754
55 to 591,1386.07.43995.46.3+739
60 to 649645.08.02883.95.4+676
65 to 698144.37.72413.34.4+573
70 to 747133.77.72283.15.0+485
75 to 794932.66.11502.04.2+343
80 to 843111.64.31241.73.0+187
85 and over3281.74.61001.41.9+228
Total population19,118100.0100.07,340100.0100.0+11,778
Source: Australian Bureau of Statistics, Census of Population and Housing 2001 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 Thornlands in 2021 compared to Cleveland 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, 21.6% of the population was aged between 0 and 15, and 13.9% were aged 65 years and over, compared with 13.4% and 30.3% respectively for Cleveland.

The major differences between the age structure of Thornlands and Cleveland were:

  • A larger percentage of persons aged 0 to 4 (6.5% compared to 3.1%)
  • A smaller percentage of persons aged 70 to 74 (3.7% compared to 7.7%)
  • A smaller percentage of persons aged 75 to 79 (2.6% compared to 6.1%)
  • A smaller percentage of persons aged 65 to 69 (4.3% compared to 7.7%)

Emerging groups

From 2001 to 2021, Thornlands's population increased by 11,778 people (160.5%). This represents an average annual population change of 4.9% per year over the period.

The largest changes in age structure in this area between 2001 and 2021 were in the age groups:

  • 10 to 14 (+885 persons)
  • 30 to 34 (+876 persons)
  • 35 to 39 (+832 persons)
  • 0 to 4 (+808 persons)

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