Powered by .id (informed decisions) for City of Brimbank
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LEARN MORE ABOUT .idBetween 2021 and 2031, the age structure forecasts for Deer Park District indicate a 8.3% decrease in females under working age, a 29.4% increase in females of retirement age, and a 2.4% increase in females 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 the City of Brimbank 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 | |||||||
|---|---|---|---|---|---|---|---|
| Deer Park District - Total females | 2021 | 2031 | 2041 | Change between 2021 and 2041 | |||
| Age group (years) | Number | % | Number | % | Number | % | Number |
| 0 to 4 | 1,385 | 6.5 | 1,435 | 6.5 | 1,521 | 6.5 | +136 |
| 5 to 9 | 1,626 | 7.6 | 1,347 | 6.1 | 1,420 | 6.1 | -206 |
| 10 to 14 | 1,473 | 6.9 | 1,329 | 6.0 | 1,406 | 6.0 | -67 |
| 15 to 19 | 1,319 | 6.2 | 1,479 | 6.7 | 1,424 | 6.1 | +105 |
| 20 to 24 | 1,317 | 6.2 | 1,479 | 6.7 | 1,494 | 6.4 | +177 |
| 25 to 29 | 1,561 | 7.3 | 1,613 | 7.3 | 1,758 | 7.6 | +197 |
| 30 to 34 | 1,674 | 7.9 | 1,672 | 7.6 | 1,817 | 7.8 | +143 |
| 35 to 39 | 1,845 | 8.7 | 1,654 | 7.5 | 1,764 | 7.6 | -81 |
| 40 to 44 | 1,649 | 7.7 | 1,562 | 7.1 | 1,639 | 7.1 | -10 |
| 45 to 49 | 1,417 | 6.7 | 1,495 | 6.8 | 1,463 | 6.3 | +46 |
| 50 to 54 | 1,311 | 6.2 | 1,361 | 6.2 | 1,351 | 5.8 | +40 |
| 55 to 59 | 1,077 | 5.1 | 1,182 | 5.4 | 1,256 | 5.4 | +179 |
| 60 to 64 | 1,099 | 5.2 | 1,110 | 5.0 | 1,169 | 5.0 | +70 |
| 65 to 69 | 956 | 4.5 | 923 | 4.2 | 1,014 | 4.4 | +58 |
| 70 to 74 | 738 | 3.5 | 854 | 3.9 | 888 | 3.8 | +150 |
| 75 to 79 | 406 | 1.9 | 711 | 3.2 | 731 | 3.1 | +325 |
| 80 to 84 | 256 | 1.2 | 467 | 2.1 | 579 | 2.5 | +323 |
| 85 and over | 178 | 0.8 | 325 | 1.5 | 547 | 2.4 | +369 |
| Total persons | 21,287 | 100.0 | 21,999 | 100.0 | 23,241 | 100.0 | +1,954 |
Key findings
In 2021, the dominant age structure for females in Deer Park District was ages 35 to 39, which accounted for 8.7% of the total females.
The largest increase in females between 2021 and 2031 is forecast to be in ages 75 to 79, which is expected to increase by 305 and account for 3.2% of the total females.
The largest female 5 year age group in 2031 is 30 to 34 years, with a total of 1,672 females.
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