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Porirua CityCommunity profile

Porirua East

Service age groups

Porirua East had a higher proportion of pre-schoolers and a lower proportion of people at post retirement age than Porirua City in 2018.

The Age Structure of the population is the most widely used component of the Census. It is an indicator of an area’s residential role and function and how it is likely to change in the future. Porirua East's age demographics are indicative of the area’s era of settlement and provide key insights into the level of demand for services and facilities (as most services and facilities are age-specific).

Service age groups divide the population into age categories that reflect typical life-stages. They indicate the level of demand for services that target people at different stages in life and how that demand is changing.

To get a more complete picture of Porirua East's demographic characteristics, Porirua East's Age Structure should be viewed in conjunction with Family and Household type data.


Derived from the Census question:

'When were you born?'

Age structure - Service age groups
Porirua East - Total persons20182013Change
Service age group (years)Number%Porirua City %Number%Porirua City %2013 to 2018
Babies and Pre-schoolers (0 to 4)2019.07.81627.88.6+39
Primary Schoolers (5 to 11)23710.611.62079.911.2+30
Secondary Schoolers (12 to 17)1868.48.622510.89.3-39
Tertiary education and independence (18 to 24)28212.78.825212.19.2+30
Young workforce (25 to 34)39017.513.025812.411.4+132
Parents and homebuilders (35 to 49)39917.920.845321.722.1-54
Older workers and pre-retirees (50 to 59)24010.812.725212.112.7-12
Empty nesters and retirees (60 to 69)1958.89.31748.39.1+21
Seniors (70 to 84)964.36.4904.35.5+6
Elderly aged (85 and over)00.01.0120.60.8-12
Total population2,226100.0100.02,085100.0100.0+141
Source: Statistics New Zealand, Census of Population and Dwellings 2013 and 2018. Compiled and presented in by .id , the population experts.
Stats NZ data quality rating: Very high
Please refer to specific data notes for more information

Dominant groups

Analysis of the service age groups of Porirua East in 2018 compared to Porirua City shows that there was a similar proportion of people in the younger age groups (0 to 17 years) and a lower proportion of people in the older age groups (60+ years).

Overall, 28.0% of the population was aged between 0 and 17, and 13.1% were aged 60 years and over, compared with 28.0% and 16.7% respectively for Porirua City.

The major differences between the age structure of Porirua East and Porirua City were:

  • A larger percentage of 'Young workforce (25 to 34)' (17.5% compared to 13.0%)
  • A larger percentage of 'Tertiary education and independence (18 to 24)' (12.7% compared to 8.8%)
  • A smaller percentage of 'Parents and homebuilders (35 to 49)' (17.9% compared to 20.8%)
  • A smaller percentage of 'Seniors (70 to 84)' (4.3% compared to 6.4%)

Emerging groups

From 2013 to 2018, Porirua East's population increased by 141 people (6.8%). This represents an average annual population change of 1.32% per year over the period.

The largest changes in the age structure in this area between 2013 and 2018 were in the age groups:

  • Young workforce (25 to 34) (+132 persons)
  • Parents and homebuilders (35 to 49) (-54 persons)

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