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Between 2013 and 2028, the age structure forecasts for Titahi Bay South-Mana Island indicate a 0.8% decrease in males under working age, a 37.3% increase in males of retirement age, and a 1.4% increase in males 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 Titahi Bay South-Mana Island 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|
|Titahi Bay South-Mana Island - Total males||2013||2028||2048||Change between 2013 and 2048|
|Age group (years)||Number||%||Number||%||Number||%||Number|
|0 to 4||180||10.4||168||9.3||194||9.8||+14|
|5 to 9||179||10.3||166||9.1||182||9.2||+3|
|10 to 14||129||7.5||150||8.3||159||8.0||+29|
|15 to 19||120||6.9||133||7.3||136||6.8||+16|
|20 to 24||80||4.6||110||6.1||115||5.8||+34|
|25 to 29||108||6.2||99||5.5||113||5.7||+5|
|30 to 34||133||7.7||114||6.3||125||6.3||-8|
|35 to 39||129||7.4||114||6.3||124||6.3||-5|
|40 to 44||110||6.4||109||6.0||114||5.7||+4|
|45 to 49||105||6.1||102||5.6||102||5.1||-3|
|50 to 54||95||5.5||96||5.3||96||4.8||+1|
|55 to 59||90||5.2||91||5.0||93||4.7||+3|
|60 to 64||70||4.1||87||4.8||89||4.5||+19|
|65 to 69||61||3.5||78||4.3||84||4.2||+23|
|70 to 74||40||2.3||69||3.8||79||4.0||+38|
|75 to 79||29||1.7||51||2.8||70||3.5||+41|
|80 to 84||29||1.7||32||1.8||50||2.5||+21|
|85 and over||42||2.4||46||2.5||58||2.9||+16|
In 2013, the dominant age structure for males in Titahi Bay South-Mana Island was ages 0 to 4, which accounted for 10.4% of the total males.
The largest increase in males between 2013 and 2028 is forecast to be in ages 20 to 24, which is expected to increase by 30 and account for 6.1% of the total males.
The largest male 5 year age group in 2028 is 0 to 4 years, with a total of 168 males.
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