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 0.9% increase in population under working age, a 58.8% increase in population of retirement age, and a 7.2% 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 4,6308.64,3977.44,5427.0-88
5 to 9 4,3218.04,4407.44,6387.2+317
10 to 14 4,1507.74,3807.34,5777.1+427
15 to 19 4,0207.54,2877.24,3176.7+296
20 to 24 3,5106.53,5445.93,6955.7+185
25 to 29 2,9325.53,1685.33,3115.1+379
30 to 34 3,1895.93,4335.83,5785.5+389
35 to 39 3,7206.93,8586.54,0656.3+346
40 to 44 4,1707.84,0796.84,4436.9+273
45 to 49 3,8497.24,0486.84,4766.9+627
50 to 54 3,7006.93,9196.64,2696.6+569
55 to 59 3,1715.93,8026.43,9876.1+816
60 to 64 2,7205.13,3495.63,6385.6+918
65 to 69 2,1704.02,9785.03,2825.1+1,113
70 to 74 1,5102.82,4024.02,9394.5+1,429
75 to 79 8501.61,8583.12,4263.7+1,576
80 to 84 5901.11,0711.81,5972.5+1,007
85 and over4990.96161.01,0631.6+564
Total persons53,700100.059,627100.064,843100.0+11,143

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: 1,063 Forecast persons aged 80-84,  2043: 1,597 Forecast persons aged 75-79,  2043: 2,426 Forecast persons aged 70-74,  2043: 2,939 Forecast persons aged 65-69,  2043: 3,282 Forecast persons aged 60-64,  2043: 3,638 Forecast persons aged 55-59,  2043: 3,987 Forecast persons aged 50-54,  2043: 4,269 Forecast persons aged 45-49,  2043: 4,476 Forecast persons aged 40-44,  2043: 4,443 Forecast persons aged 35-39,  2043: 4,065 Forecast persons aged 30-34,  2043: 3,578 Forecast persons aged 25-29,  2043: 3,311 Forecast persons aged 20-24,  2043: 3,695 Forecast persons aged 15-19,  2043: 4,317 Forecast persons aged 10-14,  2043: 4,577 Forecast persons aged 5-9,  2043: 4,638 Forecast persons aged 0-4,  2043: 4,542 Forecast persons aged 85+,  2028: 616 Forecast persons aged 80-84,  2028: 1,071 Forecast persons aged 75-79,  2028: 1,858 Forecast persons aged 70-74,  2028: 2,402 Forecast persons aged 65-69,  2028: 2,978 Forecast persons aged 60-64,  2028: 3,349 Forecast persons aged 55-59,  2028: 3,802 Forecast persons aged 50-54,  2028: 3,919 Forecast persons aged 45-49,  2028: 4,048 Forecast persons aged 40-44,  2028: 4,079 Forecast persons aged 35-39,  2028: 3,858 Forecast persons aged 30-34,  2028: 3,433 Forecast persons aged 25-29,  2028: 3,168 Forecast persons aged 20-24,  2028: 3,544 Forecast persons aged 15-19,  2028: 4,287 Forecast persons aged 10-14,  2028: 4,380 Forecast persons aged 5-9,  2028: 4,440 Forecast persons aged 0-4,  2028: 4,397 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: 447 Forecast persons aged 80-84,  2028 to 2043: 527 Forecast persons aged 75-79,  2028 to 2043: 568 Forecast persons aged 70-74,  2028 to 2043: 537 Forecast persons aged 65-69,  2028 to 2043: 305 Forecast persons aged 60-64,  2028 to 2043: 290 Forecast persons aged 55-59,  2028 to 2043: 185 Forecast persons aged 50-54,  2028 to 2043: 350 Forecast persons aged 45-49,  2028 to 2043: 428 Forecast persons aged 40-44,  2028 to 2043: 364 Forecast persons aged 35-39,  2028 to 2043: 207 Forecast persons aged 30-34,  2028 to 2043: 144 Forecast persons aged 25-29,  2028 to 2043: 144 Forecast persons aged 20-24,  2028 to 2043: 152 Forecast persons aged 15-19,  2028 to 2043: 29 Forecast persons aged 10-14,  2028 to 2043: 197 Forecast persons aged 5-9,  2028 to 2043: 198 Forecast persons aged 0-4,  2028 to 2043: 144 Forecast persons aged 85+,  2013 to 2028: 116 Forecast persons aged 80-84,  2013 to 2028: 481 Forecast persons aged 75-79,  2013 to 2028: 1,008 Forecast persons aged 70-74,  2013 to 2028: 892 Forecast persons aged 65-69,  2013 to 2028: 808 Forecast persons aged 60-64,  2013 to 2028: 629 Forecast persons aged 55-59,  2013 to 2028: 631 Forecast persons aged 50-54,  2013 to 2028: 219 Forecast persons aged 45-49,  2013 to 2028: 199 Forecast persons aged 40-44,  2013 to 2028: -91 Forecast persons aged 35-39,  2013 to 2028: 138 Forecast persons aged 30-34,  2013 to 2028: 245 Forecast persons aged 25-29,  2013 to 2028: 236 Forecast persons aged 20-24,  2013 to 2028: 33 Forecast persons aged 15-19,  2013 to 2028: 267 Forecast persons aged 10-14,  2013 to 2028: 230 Forecast persons aged 5-9,  2013 to 2028: 119 Forecast persons aged 0-4,  2013 to 2028: -233
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 1,008 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 4,440 persons.

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