Porirua CityPopulation forecast
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Whitby East

Population and age structure

Between 2013 and 2028, the age structure forecasts for Whitby East indicate a 42.1% increase in population under working age, a 143.7% increase in population of retirement age, and a 41.3% 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
Whitby East - Total persons201320282043Change between 2013 and 2043
Age group (years)Number%Number%Number%Number
0 to 43686.75616.75156.2+147
5 to 94388.05967.15396.5+101
10 to 144197.75847.05356.5+117
15 to 193806.95106.14845.9+105
20 to 242915.33654.43664.4+75
25 to 291733.23023.62973.6+124
30 to 342704.94064.93614.4+91
35 to 393937.25576.74725.7+78
40 to 444468.26567.95626.8+115
45 to 495329.76637.95927.2+60
50 to 544698.66157.45887.1+119
55 to 593656.75516.65817.0+216
60 to 643276.05256.35436.6+217
65 to 692324.24685.65086.2+276
70 to 741492.73824.64625.6+313
75 to 79841.53063.74095.0+325
80 to 84601.11672.02623.2+201
85 and over721.31321.61782.2+106
Total persons5,469100.08,345100.08,255100.0+2,786

Population and household forecasts, 2013 to 2043, prepared by .id , the population experts, January 2020.

Forecast age structure - 5 year age groups
Forecast age structure - 5 year age groups Forecast persons aged 85+,  2043: 178 Forecast persons aged 80-84,  2043: 262 Forecast persons aged 75-79,  2043: 409 Forecast persons aged 70-74,  2043: 462 Forecast persons aged 65-69,  2043: 508 Forecast persons aged 60-64,  2043: 543 Forecast persons aged 55-59,  2043: 581 Forecast persons aged 50-54,  2043: 588 Forecast persons aged 45-49,  2043: 592 Forecast persons aged 40-44,  2043: 562 Forecast persons aged 35-39,  2043: 472 Forecast persons aged 30-34,  2043: 361 Forecast persons aged 25-29,  2043: 297 Forecast persons aged 20-24,  2043: 366 Forecast persons aged 15-19,  2043: 484 Forecast persons aged 10-14,  2043: 535 Forecast persons aged 5-9,  2043: 539 Forecast persons aged 0-4,  2043: 515 Forecast persons aged 85+,  2028: 132 Forecast persons aged 80-84,  2028: 167 Forecast persons aged 75-79,  2028: 306 Forecast persons aged 70-74,  2028: 382 Forecast persons aged 65-69,  2028: 468 Forecast persons aged 60-64,  2028: 525 Forecast persons aged 55-59,  2028: 551 Forecast persons aged 50-54,  2028: 615 Forecast persons aged 45-49,  2028: 663 Forecast persons aged 40-44,  2028: 656 Forecast persons aged 35-39,  2028: 557 Forecast persons aged 30-34,  2028: 406 Forecast persons aged 25-29,  2028: 302 Forecast persons aged 20-24,  2028: 365 Forecast persons aged 15-19,  2028: 510 Forecast persons aged 10-14,  2028: 584 Forecast persons aged 5-9,  2028: 596 Forecast persons aged 0-4,  2028: 561 Forecast persons aged 85+,  2013: 72 Forecast persons aged 80-84,  2013: 60 Forecast persons aged 75-79,  2013: 84 Forecast persons aged 70-74,  2013: 149 Forecast persons aged 65-69,  2013: 232 Forecast persons aged 60-64,  2013: 327 Forecast persons aged 55-59,  2013: 365 Forecast persons aged 50-54,  2013: 469 Forecast persons aged 45-49,  2013: 532 Forecast persons aged 40-44,  2013: 446 Forecast persons aged 35-39,  2013: 393 Forecast persons aged 30-34,  2013: 270 Forecast persons aged 25-29,  2013: 173 Forecast persons aged 20-24,  2013: 291 Forecast persons aged 15-19,  2013: 380 Forecast persons aged 10-14,  2013: 419 Forecast persons aged 5-9,  2013: 438 Forecast persons aged 0-4,  2013: 368
Population and household forecasts, 2013 to 2043, prepared by .id the population experts, January 2020.
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: 46 Forecast persons aged 80-84,  2028 to 2043: 95 Forecast persons aged 75-79,  2028 to 2043: 103 Forecast persons aged 70-74,  2028 to 2043: 80 Forecast persons aged 65-69,  2028 to 2043: 40 Forecast persons aged 60-64,  2028 to 2043: 18 Forecast persons aged 55-59,  2028 to 2043: 30 Forecast persons aged 50-54,  2028 to 2043: -27 Forecast persons aged 45-49,  2028 to 2043: -72 Forecast persons aged 40-44,  2028 to 2043: -94 Forecast persons aged 35-39,  2028 to 2043: -85 Forecast persons aged 30-34,  2028 to 2043: -45 Forecast persons aged 25-29,  2028 to 2043: -4 Forecast persons aged 20-24,  2028 to 2043: 1 Forecast persons aged 15-19,  2028 to 2043: -25 Forecast persons aged 10-14,  2028 to 2043: -48 Forecast persons aged 5-9,  2028 to 2043: -57 Forecast persons aged 0-4,  2028 to 2043: -46 Forecast persons aged 85+,  2013 to 2028: 60 Forecast persons aged 80-84,  2013 to 2028: 106 Forecast persons aged 75-79,  2013 to 2028: 222 Forecast persons aged 70-74,  2013 to 2028: 232 Forecast persons aged 65-69,  2013 to 2028: 236 Forecast persons aged 60-64,  2013 to 2028: 199 Forecast persons aged 55-59,  2013 to 2028: 185 Forecast persons aged 50-54,  2013 to 2028: 146 Forecast persons aged 45-49,  2013 to 2028: 132 Forecast persons aged 40-44,  2013 to 2028: 209 Forecast persons aged 35-39,  2013 to 2028: 163 Forecast persons aged 30-34,  2013 to 2028: 136 Forecast persons aged 25-29,  2013 to 2028: 128 Forecast persons aged 20-24,  2013 to 2028: 74 Forecast persons aged 15-19,  2013 to 2028: 130 Forecast persons aged 10-14,  2013 to 2028: 165 Forecast persons aged 5-9,  2013 to 2028: 158 Forecast persons aged 0-4,  2013 to 2028: 193
Population and household forecasts, 2013 to 2043, prepared by .id the population experts, January 2020.

Key findings

In 2013, the dominant age structure for persons in Whitby East was ages 45 to 49, which accounted for 9.7% of the total persons.

The largest increase in persons between 2013 and 2028 is forecast to be in ages 65 to 69, which is expected to increase by 236 and account for 5.6% of the total persons.

The largest 5 year age group in 2028 is 45 to 49 years, with a total of 663 persons.

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