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Northern District

Five year age groups

There were 691 people over the age of 85 living in Northern District in 2011, with largest age group being 50 to 54 year olds.

The Age Structure of Northern District 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 District'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 District's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Derived from the Census question:

'What is the person's date of birth (or age last birthday)?'

Total population

Age structure - Five year age groups
Northern District - Total persons (Usual residence)20112006Change
Five year age groups (years)Number%City of Onkaparinga %Number%City of Onkaparinga %2006 to 2011
0 to 42,4346.06.62,3945.96.1+40
5 to 92,4216.06.32,7186.76.8-297
10 to 142,7476.86.72,9397.37.3-192
15 to 192,9517.36.83,2218.07.3-270
20 to 242,5256.36.22,6776.66.5-152
25 to 292,2585.66.42,2695.65.8-11
30 to 342,4766.16.22,5616.36.5-85
35 to 392,7106.76.62,7386.87.0-28
40 to 442,8587.17.13,0597.67.4-201
45 to 492,9967.47.13,4798.67.7-483
50 to 543,2348.07.03,3048.27.3-70
55 to 592,9187.26.63,0807.67.1-162
60 to 642,7876.96.51,9114.75.0+876
65 to 691,6594.14.61,2253.03.6+434
70 to 741,0932.73.29662.42.8+127
75 to 798062.02.48502.12.5-44
80 to 847051.82.06051.51.8+100
85 and over6911.71.84731.21.4+218

Source: Australian Bureau of Statistics, Census of Population and Housing 2006 and 2011. Compiled and presented by .id , the population experts.

Age structure - five year age groups, 2011
Age structure - five year age groups, 2011 85 and over, City of Onkaparinga: 1.8% 80 to 84, City of Onkaparinga: 2.0% 75 to 79, City of Onkaparinga: 2.4% 70 to 74, City of Onkaparinga: 3.2% 65 to 69, City of Onkaparinga: 4.6% 60 to 64, City of Onkaparinga: 6.5% 55 to 59, City of Onkaparinga: 6.6% 50 to 54, City of Onkaparinga: 7.0% 45 to 49, City of Onkaparinga: 7.1% 40 to 44, City of Onkaparinga: 7.1% 35 to 39, City of Onkaparinga: 6.6% 30 to 34, City of Onkaparinga: 6.2% 25 to 29, City of Onkaparinga: 6.4% 20 to 24, City of Onkaparinga: 6.2% 15 to 19, City of Onkaparinga: 6.8% 10 to 14, City of Onkaparinga: 6.7% 5 to 9, City of Onkaparinga: 6.3% 0 to 4, City of Onkaparinga: 6.6% 85 and over, Northern District: 1.7% 80 to 84, Northern District: 1.8% 75 to 79, Northern District: 2.0% 70 to 74, Northern District: 2.7% 65 to 69, Northern District: 4.1% 60 to 64, Northern District: 6.9% 55 to 59, Northern District: 7.2% 50 to 54, Northern District: 8.0% 45 to 49, Northern District: 7.4% 40 to 44, Northern District: 7.1% 35 to 39, Northern District: 6.7% 30 to 34, Northern District: 6.1% 25 to 29, Northern District: 5.6% 20 to 24, Northern District: 6.3% 15 to 19, Northern District: 7.3% 10 to 14, Northern District: 6.8% 5 to 9, Northern District: 6.0% 0 to 4, Northern District: 6.0%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.
Change in age structure - five year age groups, 2006 to 2011
Change in age structure - five year age groups, 2006 to 2011 85 and over, Northern District: +218 80 to 84, Northern District: +100 75 to 79, Northern District: -44 70 to 74, Northern District: +127 65 to 69, Northern District: +434 60 to 64, Northern District: +876 55 to 59, Northern District: -162 50 to 54, Northern District: -70 45 to 49, Northern District: -483 40 to 44, Northern District: -201 35 to 39, Northern District: -28 30 to 34, Northern District: -85 25 to 29, Northern District: -11 20 to 24, Northern District: -152 15 to 19, Northern District: -270 10 to 14, Northern District: -192 5 to 9, Northern District: -297 0 to 4, Northern District: +40
Source: Australian Bureau of Statistics, Census of Population and Housing, 2006 and 2011 (Usual residence data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Analysis of the five year age groups of Northern District in 2011 compared to the City of Onkaparinga shows that there was a lower proportion of people in the younger age groups (under 15) as well as a lower proportion of people in the older age groups (65+).

Overall, 18.9% of the population was aged between 0 and 15, and 12.3% were aged 65 years and over, compared with 19.5% and 13.8% respectively for the City of Onkaparinga.

The major differences between the age structure of Northern District and the City of Onkaparinga were:

  • A larger percentage of persons aged 50 to 54 (8.0% compared to 7.0%)
  • A larger percentage of persons aged 55 to 59 (7.2% compared to 6.6%)
  • A smaller percentage of persons aged 25 to 29 (5.6% compared to 6.4%)
  • A smaller percentage of persons aged 0 to 4 (6.0% compared to 6.6%)

Emerging groups

From 2006 to 2011, Northern District's population decreased by 198 people (0.5%). This represents an average annual population change of -0.1% per year over the period.

The largest changes in age structure in this area between 2006 and 2011 were in the age groups:

  • 60 to 64 (+876 persons)
  • 45 to 49 (-483 persons)
  • 65 to 69 (+434 persons)
  • 5 to 9 (-297 persons)

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