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There were 555 people over the age of 85 living in Porirua City in 2018, with largest age group being 5 to 9 year olds.
The Age Structure of Porirua City provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Porirua City'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.
'When were you born?'
|Age structure - Five year age groups|
|Five year age groups (years)||Number||%||Wellington Region %||Number||%||Wellington Region %||2013 to 2018|
|0 to 4||4,404||7.8||5.9||4,431||8.6||6.7||-27|
|5 to 9||4,740||8.4||6.5||4,209||8.1||6.5||+531|
|10 to 14||4,299||7.6||6.2||4,035||7.8||6.4||+264|
|15 to 19||3,876||6.9||6.6||3,831||7.4||7.0||+45|
|20 to 24||3,486||6.2||7.4||3,309||6.4||7.5||+177|
|25 to 29||3,762||6.7||7.6||2,757||5.3||6.5||+1,005|
|30 to 34||3,609||6.4||6.9||3,144||6.1||6.6||+465|
|35 to 39||3,786||6.7||6.7||3,663||7.1||6.8||+123|
|40 to 44||3,879||6.9||6.6||4,011||7.8||7.6||-132|
|45 to 49||4,089||7.2||7.1||3,774||7.3||7.3||+315|
|50 to 54||3,732||6.6||6.7||3,534||6.8||7.0||+198|
|55 to 59||3,450||6.1||6.4||3,045||5.9||5.8||+405|
|60 to 64||2,874||5.1||5.2||2,649||5.1||5.2||+225|
|65 to 69||2,391||4.2||4.5||2,052||4.0||4.3||+339|
|70 to 74||1,803||3.2||3.7||1,449||2.8||3.2||+354|
|75 to 79||1,197||2.1||2.7||828||1.6||2.3||+369|
|80 to 84||627||1.1||1.7||570||1.1||1.8||+57|
|85 and over||555||1.0||1.7||432||0.8||1.6||+123|
Analysis of the five year age groups of Porirua City in 2018 compared to Wellington Region 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, 23.8% of the population was aged between 0 and 14, and 11.6% were aged 65 years and over, compared with 18.5% and 14.3% respectively for Wellington Region.
The major differences between the age structure of Porirua City and Wellington Region were:
From 2013 to 2018, Porirua City's population increased by 4,836 people (9.3%). This represents an average annual population change of 1.8% per year over the period.
The largest changes in age structure in this area between 2013 and 2018 were in the age groups:
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