Porirua CityPopulation forecast
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Waitangirua

Population and age structure

Between 2013 and 2028, the age structure forecasts for Waitangirua indicate a 1.0% decrease in population under working age, a 68.9% increase in population of retirement age, and a 7.9% 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
Waitangirua - Total persons201320282043Change between 2013 and 2043
Age group (years)Number%Number%Number%Number
0 to 444710.64249.25619.4+113
5 to 94189.94289.35679.5+148
10 to 1442810.24289.35609.4+132
15 to 194009.54028.75188.7+119
20 to 243718.83597.84537.6+82
25 to 292676.43267.13906.6+123
30 to 342566.13156.83846.4+128
35 to 392495.92926.33776.3+128
40 to 442516.02635.73596.0+108
45 to 492415.72385.13325.6+91
50 to 542395.72174.72904.9+51
55 to 591503.62024.42444.1+94
60 to 641714.11874.12173.6+46
65 to 691313.11693.71893.2+58
70 to 74892.11192.61722.9+83
75 to 79390.91162.51492.5+110
80 to 84300.7701.51041.8+74
85 and over290.7631.4841.4+56
Total persons4,206100.04,618100.05,950100.0+1,745

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: 84 Forecast persons aged 80-84,  2043: 104 Forecast persons aged 75-79,  2043: 149 Forecast persons aged 70-74,  2043: 172 Forecast persons aged 65-69,  2043: 189 Forecast persons aged 60-64,  2043: 217 Forecast persons aged 55-59,  2043: 244 Forecast persons aged 50-54,  2043: 290 Forecast persons aged 45-49,  2043: 332 Forecast persons aged 40-44,  2043: 359 Forecast persons aged 35-39,  2043: 377 Forecast persons aged 30-34,  2043: 384 Forecast persons aged 25-29,  2043: 390 Forecast persons aged 20-24,  2043: 453 Forecast persons aged 15-19,  2043: 518 Forecast persons aged 10-14,  2043: 560 Forecast persons aged 5-9,  2043: 567 Forecast persons aged 0-4,  2043: 561 Forecast persons aged 85+,  2028: 63 Forecast persons aged 80-84,  2028: 70 Forecast persons aged 75-79,  2028: 116 Forecast persons aged 70-74,  2028: 119 Forecast persons aged 65-69,  2028: 169 Forecast persons aged 60-64,  2028: 187 Forecast persons aged 55-59,  2028: 202 Forecast persons aged 50-54,  2028: 217 Forecast persons aged 45-49,  2028: 238 Forecast persons aged 40-44,  2028: 263 Forecast persons aged 35-39,  2028: 292 Forecast persons aged 30-34,  2028: 315 Forecast persons aged 25-29,  2028: 326 Forecast persons aged 20-24,  2028: 359 Forecast persons aged 15-19,  2028: 402 Forecast persons aged 10-14,  2028: 428 Forecast persons aged 5-9,  2028: 428 Forecast persons aged 0-4,  2028: 424 Forecast persons aged 85+,  2013: 29 Forecast persons aged 80-84,  2013: 30 Forecast persons aged 75-79,  2013: 39 Forecast persons aged 70-74,  2013: 89 Forecast persons aged 65-69,  2013: 131 Forecast persons aged 60-64,  2013: 171 Forecast persons aged 55-59,  2013: 150 Forecast persons aged 50-54,  2013: 239 Forecast persons aged 45-49,  2013: 241 Forecast persons aged 40-44,  2013: 251 Forecast persons aged 35-39,  2013: 249 Forecast persons aged 30-34,  2013: 256 Forecast persons aged 25-29,  2013: 267 Forecast persons aged 20-24,  2013: 371 Forecast persons aged 15-19,  2013: 400 Forecast persons aged 10-14,  2013: 428 Forecast persons aged 5-9,  2013: 418 Forecast persons aged 0-4,  2013: 447
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: 21 Forecast persons aged 80-84,  2028 to 2043: 34 Forecast persons aged 75-79,  2028 to 2043: 34 Forecast persons aged 70-74,  2028 to 2043: 53 Forecast persons aged 65-69,  2028 to 2043: 20 Forecast persons aged 60-64,  2028 to 2043: 30 Forecast persons aged 55-59,  2028 to 2043: 42 Forecast persons aged 50-54,  2028 to 2043: 73 Forecast persons aged 45-49,  2028 to 2043: 95 Forecast persons aged 40-44,  2028 to 2043: 96 Forecast persons aged 35-39,  2028 to 2043: 85 Forecast persons aged 30-34,  2028 to 2043: 68 Forecast persons aged 25-29,  2028 to 2043: 64 Forecast persons aged 20-24,  2028 to 2043: 94 Forecast persons aged 15-19,  2028 to 2043: 116 Forecast persons aged 10-14,  2028 to 2043: 132 Forecast persons aged 5-9,  2028 to 2043: 139 Forecast persons aged 0-4,  2028 to 2043: 137 Forecast persons aged 85+,  2013 to 2028: 34 Forecast persons aged 80-84,  2013 to 2028: 40 Forecast persons aged 75-79,  2013 to 2028: 76 Forecast persons aged 70-74,  2013 to 2028: 30 Forecast persons aged 65-69,  2013 to 2028: 38 Forecast persons aged 60-64,  2013 to 2028: 17 Forecast persons aged 55-59,  2013 to 2028: 52 Forecast persons aged 50-54,  2013 to 2028: -22 Forecast persons aged 45-49,  2013 to 2028: -3 Forecast persons aged 40-44,  2013 to 2028: 12 Forecast persons aged 35-39,  2013 to 2028: 43 Forecast persons aged 30-34,  2013 to 2028: 59 Forecast persons aged 25-29,  2013 to 2028: 59 Forecast persons aged 20-24,  2013 to 2028: -12 Forecast persons aged 15-19,  2013 to 2028: 3 Forecast persons aged 10-14,  2013 to 2028: 0 Forecast persons aged 5-9,  2013 to 2028: 10 Forecast persons aged 0-4,  2013 to 2028: -24
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 Waitangirua was ages 0 to 4, which accounted for 10.6% 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 76 and account for 2.5% of the total persons.

The largest 5 year age group in 2028 is 5 to 9 years, with a total of 428 persons.

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