Porirua CityPopulation forecast
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Porirua City

Population and age structure

Between 2013 and 2028, the age structure forecasts for Porirua City indicate a 2.6% increase in population under working age, a 59.9% increase in population of retirement age, and a 8.9% increase in population of working age.

Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.

The forecast age groups of Porirua City is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.

Forecast age structure - 5 year age groups
Porirua City - Total persons201320282043Change between 2013 and 2043
Age group (years)Number%Number%Number%Number
0 to 4 4,6308.64,4707.44,5877.0-42
5 to 9 4,3218.04,5197.54,7047.2+383
10 to 14 4,1507.74,4527.44,6567.1+506
15 to 19 4,0207.54,3707.24,3856.7+365
20 to 24 3,5106.53,6056.03,7505.7+240
25 to 29 2,9325.53,2175.33,3535.1+422
30 to 34 3,1895.93,4985.83,6185.5+429
35 to 39 3,7206.93,9226.54,1106.3+391
40 to 44 4,1707.84,1466.94,5066.9+336
45 to 49 3,8497.24,1316.84,5446.9+695
50 to 54 3,7006.93,9666.64,3236.6+623
55 to 59 3,1715.93,8416.34,0356.1+864
60 to 64 2,7205.13,3815.63,6885.6+968
65 to 69 2,1704.03,0025.03,3135.0+1,144
70 to 74 1,5102.82,4214.02,9644.5+1,454
75 to 79 8501.61,8683.12,4463.7+1,596
80 to 84 5901.11,0741.81,6102.5+1,020
85 and over4990.96201.01,0711.6+571
Total persons53,700100.060,504100.065,664100.0+11,964

Population and household forecasts, 2013 to 2043, prepared by .id , the population experts, April 2016.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2043: 1,071 Forecast persons aged 80-84,  2043: 1,610 Forecast persons aged 75-79,  2043: 2,446 Forecast persons aged 70-74,  2043: 2,964 Forecast persons aged 65-69,  2043: 3,313 Forecast persons aged 60-64,  2043: 3,688 Forecast persons aged 55-59,  2043: 4,035 Forecast persons aged 50-54,  2043: 4,323 Forecast persons aged 45-49,  2043: 4,544 Forecast persons aged 40-44,  2043: 4,506 Forecast persons aged 35-39,  2043: 4,110 Forecast persons aged 30-34,  2043: 3,618 Forecast persons aged 25-29,  2043: 3,353 Forecast persons aged 20-24,  2043: 3,750 Forecast persons aged 15-19,  2043: 4,385 Forecast persons aged 10-14,  2043: 4,656 Forecast persons aged 5-9,  2043: 4,704 Forecast persons aged 0-4,  2043: 4,587 Forecast persons aged 85+,  2028: 620 Forecast persons aged 80-84,  2028: 1,074 Forecast persons aged 75-79,  2028: 1,868 Forecast persons aged 70-74,  2028: 2,421 Forecast persons aged 65-69,  2028: 3,002 Forecast persons aged 60-64,  2028: 3,381 Forecast persons aged 55-59,  2028: 3,841 Forecast persons aged 50-54,  2028: 3,966 Forecast persons aged 45-49,  2028: 4,131 Forecast persons aged 40-44,  2028: 4,146 Forecast persons aged 35-39,  2028: 3,922 Forecast persons aged 30-34,  2028: 3,498 Forecast persons aged 25-29,  2028: 3,217 Forecast persons aged 20-24,  2028: 3,605 Forecast persons aged 15-19,  2028: 4,370 Forecast persons aged 10-14,  2028: 4,452 Forecast persons aged 5-9,  2028: 4,519 Forecast persons aged 0-4,  2028: 4,470 Forecast persons aged 85+,  2013: 499 Forecast persons aged 80-84,  2013: 590 Forecast persons aged 75-79,  2013: 850 Forecast persons aged 70-74,  2013: 1,510 Forecast persons aged 65-69,  2013: 2,170 Forecast persons aged 60-64,  2013: 2,720 Forecast persons aged 55-59,  2013: 3,171 Forecast persons aged 50-54,  2013: 3,700 Forecast persons aged 45-49,  2013: 3,849 Forecast persons aged 40-44,  2013: 4,170 Forecast persons aged 35-39,  2013: 3,720 Forecast persons aged 30-34,  2013: 3,189 Forecast persons aged 25-29,  2013: 2,932 Forecast persons aged 20-24,  2013: 3,510 Forecast persons aged 15-19,  2013: 4,020 Forecast persons aged 10-14,  2013: 4,150 Forecast persons aged 5-9,  2013: 4,321 Forecast persons aged 0-4,  2013: 4,630
Population and household forecasts, 2013 to 2043, prepared by .id the population experts, April 2016.
Forecast change in age structure - 5 year age groups
Forecast change in age structure - 5 year age groups Forecast persons aged 85+,  2028 to 2043: 451 Forecast persons aged 80-84,  2028 to 2043: 536 Forecast persons aged 75-79,  2028 to 2043: 577 Forecast persons aged 70-74,  2028 to 2043: 543 Forecast persons aged 65-69,  2028 to 2043: 312 Forecast persons aged 60-64,  2028 to 2043: 307 Forecast persons aged 55-59,  2028 to 2043: 194 Forecast persons aged 50-54,  2028 to 2043: 357 Forecast persons aged 45-49,  2028 to 2043: 413 Forecast persons aged 40-44,  2028 to 2043: 360 Forecast persons aged 35-39,  2028 to 2043: 188 Forecast persons aged 30-34,  2028 to 2043: 120 Forecast persons aged 25-29,  2028 to 2043: 137 Forecast persons aged 20-24,  2028 to 2043: 145 Forecast persons aged 15-19,  2028 to 2043: 15 Forecast persons aged 10-14,  2028 to 2043: 204 Forecast persons aged 5-9,  2028 to 2043: 185 Forecast persons aged 0-4,  2028 to 2043: 117 Forecast persons aged 85+,  2013 to 2028: 121 Forecast persons aged 80-84,  2013 to 2028: 484 Forecast persons aged 75-79,  2013 to 2028: 1,018 Forecast persons aged 70-74,  2013 to 2028: 911 Forecast persons aged 65-69,  2013 to 2028: 832 Forecast persons aged 60-64,  2013 to 2028: 661 Forecast persons aged 55-59,  2013 to 2028: 670 Forecast persons aged 50-54,  2013 to 2028: 266 Forecast persons aged 45-49,  2013 to 2028: 282 Forecast persons aged 40-44,  2013 to 2028: -24 Forecast persons aged 35-39,  2013 to 2028: 202 Forecast persons aged 30-34,  2013 to 2028: 309 Forecast persons aged 25-29,  2013 to 2028: 285 Forecast persons aged 20-24,  2013 to 2028: 95 Forecast persons aged 15-19,  2013 to 2028: 350 Forecast persons aged 10-14,  2013 to 2028: 302 Forecast persons aged 5-9,  2013 to 2028: 199 Forecast persons aged 0-4,  2013 to 2028: -160
Population and household forecasts, 2013 to 2043, prepared by .id the population experts, April 2016.

Key findings

In 2013, the dominant age structure for persons in Porirua City was ages 0 to 4 , which accounted for 8.6% of the total persons.

The largest increase in persons between 2013 and 2028 is forecast to be in ages 75 to 79 , which is expected to increase by 1,018 and account for 3.1% of the total persons.

The largest 5 year age group in 2028 is 5 to 9 years, with a total of 4,519 persons.

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