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LEARN MORE ABOUT .idIn 2021, the largest age group in National Growth Areas Alliance (NGAA) was 35 to 39 year olds. The group that changed the most since 2011 was 30 to 34 year olds, increasing by 70,902 people.
The Age Structure of National Growth Areas Alliance (NGAA) provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of National Growth Areas Alliance (NGAA)'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 National Growth Areas Alliance (NGAA)'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 | |||||||
|---|---|---|---|---|---|---|---|
| National Growth Areas Alliance (NGAA) - Total females (Enumerated) | 2021 | 2011 | Change | ||||
| Five year age groups (years) | Number | % | Growth LGAs in SA % | Number | % | Growth LGAs in SA % | 2011 to 2021 |
| 0 to 4 | 182,827 | 7.0 | 7.1 | 145,044 | 7.6 | 7.8 | +37,783 |
| 5 to 9 | 193,581 | 7.4 | 7.2 | 136,754 | 7.2 | 6.8 | +56,827 |
| 10 to 14 | 181,722 | 6.9 | 6.9 | 136,015 | 7.1 | 7.2 | +45,706 |
| 15 to 19 | 158,376 | 6.0 | 5.9 | 135,928 | 7.1 | 7.3 | +22,447 |
| 20 to 24 | 158,606 | 6.1 | 6.6 | 127,567 | 6.7 | 7.3 | +31,039 |
| 25 to 29 | 178,851 | 6.8 | 7.6 | 136,534 | 7.1 | 7.0 | +42,317 |
| 30 to 34 | 209,389 | 8.0 | 7.6 | 138,487 | 7.3 | 6.1 | +70,902 |
| 35 to 39 | 215,699 | 8.2 | 7.0 | 145,883 | 7.6 | 6.7 | +69,816 |
| 40 to 44 | 181,456 | 6.9 | 5.8 | 144,651 | 7.6 | 7.2 | +36,804 |
| 45 to 49 | 169,427 | 6.5 | 6.0 | 134,700 | 7.1 | 7.2 | +34,727 |
| 50 to 54 | 159,175 | 6.1 | 6.1 | 122,691 | 6.4 | 6.5 | +36,483 |
| 55 to 59 | 144,501 | 5.5 | 5.9 | 105,855 | 5.5 | 5.3 | +38,645 |
| 60 to 64 | 130,903 | 5.0 | 5.4 | 94,127 | 4.9 | 4.7 | +36,775 |
| 65 to 69 | 111,653 | 4.3 | 4.4 | 65,444 | 3.4 | 3.7 | +46,209 |
| 70 to 74 | 96,208 | 3.7 | 3.8 | 48,548 | 2.5 | 3.0 | +47,660 |
| 75 to 79 | 64,148 | 2.4 | 2.7 | 36,548 | 1.9 | 2.5 | +27,600 |
| 80 to 84 | 42,446 | 1.6 | 2.0 | 28,343 | 1.5 | 2.0 | +14,103 |
| 85 and over | 41,610 | 1.6 | 2.0 | 26,698 | 1.4 | 1.6 | +14,912 |
| Total population | 2,620,578 | 100.0 | 100.0 | 1,909,823 | 100.0 | 100.0 | +710,755 |
Dominant groups
Analysis of the female five year age groups of National Growth Areas Alliance (NGAA) in 2021 compared to Growth LGAs in SA shows that there was a similar proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 21.3% of the female population was aged between 0 and 15, and 13.6% were aged 65 years and over, compared with 21.2% and 14.9% respectively for Growth LGAs in SA.
The major differences between the female age structure of National Growth Areas Alliance (NGAA) and Growth LGAs in SA were:
- A larger percentage of females aged 35 to 39 (8.2% compared to 7.0%)
- A larger percentage of females aged 40 to 44 (6.9% compared to 5.8%)
- A smaller percentage of females aged 25 to 29 (6.8% compared to 7.6%)
- A smaller percentage of females aged 20 to 24 (6.1% compared to 6.6%)
Emerging groups
From 2011 to 2021, National Growth Areas Alliance (NGAA)'s female population increased by 710,755 people (37.2%). This represents an average annual population change of 3.21% per year over the period.
The largest changes in female age structure in this area between 2011 and 2021 were in the age groups:
- 30 to 34 (+70,902 females)
- 35 to 39 (+69,816 females)
- 5 to 9 (+56,827 females)
- 70 to 74 (+47,660 females)
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