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LEARN MORE ABOUT .idIn 2021, the largest age group in Deer Park was 35 to 39 year olds. The group that changed the most since 1996 was 30 to 34 year olds, increasing by 612 people.
The Age Structure of Deer Park provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Deer Park's residential role and function and how it is likely to change in the future.
Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.
To get a more complete picture Deer Park's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.
Q:
Derived from the Census question:
'What is the person's date of birth or age?'
| Age structure - Five year age groups | |||||||
|---|---|---|---|---|---|---|---|
| Deer Park - Total persons (Enumerated) | 2021 | 1996 | Change | ||||
| Five year age groups (years) | Number | % | Keilor District % | Number | % | Keilor District % | 1996 to 2021 |
| 0 to 4 | 1,200 | 6.6 | 5.0 | 919 | 7.2 | 5.3 | +280 |
| 5 to 9 | 1,347 | 7.4 | 5.5 | 973 | 7.6 | 6.7 | +373 |
| 10 to 14 | 1,143 | 6.3 | 6.1 | 1,106 | 8.6 | 7.5 | +36 |
| 15 to 19 | 958 | 5.3 | 5.9 | 1,221 | 9.5 | 9.9 | -263 |
| 20 to 24 | 1,099 | 6.1 | 5.1 | 1,159 | 9.0 | 9.3 | -60 |
| 25 to 29 | 1,512 | 8.4 | 4.7 | 975 | 7.6 | 6.6 | +536 |
| 30 to 34 | 1,541 | 8.5 | 5.2 | 928 | 7.2 | 5.7 | +612 |
| 35 to 39 | 1,547 | 8.6 | 5.4 | 939 | 7.3 | 6.5 | +607 |
| 40 to 44 | 1,271 | 7.0 | 6.1 | 1,094 | 8.5 | 7.8 | +177 |
| 45 to 49 | 1,094 | 6.0 | 7.0 | 1,112 | 8.6 | 10.5 | -19 |
| 50 to 54 | 1,017 | 5.6 | 6.7 | 734 | 5.7 | 8.3 | +282 |
| 55 to 59 | 914 | 5.1 | 6.4 | 556 | 4.3 | 5.3 | +358 |
| 60 to 64 | 855 | 4.7 | 6.3 | 378 | 2.9 | 3.4 | +476 |
| 65 to 69 | 853 | 4.7 | 5.6 | 297 | 2.3 | 2.7 | +555 |
| 70 to 74 | 779 | 4.3 | 6.8 | 207 | 1.6 | 2.0 | +571 |
| 75 to 79 | 464 | 2.6 | 5.3 | 129 | 1.0 | 1.4 | +335 |
| 80 to 84 | 333 | 1.8 | 3.4 | 83 | 0.6 | 0.6 | +250 |
| 85 and over | 161 | 0.9 | 3.4 | 44 | 0.3 | 0.4 | +117 |
| Total population | 18,088 | 100.0 | 100.0 | 12,863 | 100.0 | 100.0 | +5,225 |
Dominant groups
Analysis of the five year age groups of Deer Park in 2021 compared to the Keilor District shows that there was a higher proportion of people in the younger age groups (under 15) and a lower proportion of people in the older age groups (65+).
Overall, 20.4% of the population was aged between 0 and 15, and 14.3% were aged 65 years and over, compared with 16.6% and 24.5% respectively for the Keilor District.
The major differences between the age structure of Deer Park and the Keilor District were:
- A larger percentage of persons aged 25 to 29 (8.4% compared to 4.7%)
- A larger percentage of persons aged 30 to 34 (8.5% compared to 5.2%)
- A larger percentage of persons aged 35 to 39 (8.6% compared to 5.4%)
- A smaller percentage of persons aged 75 to 79 (2.6% compared to 5.3%)
Emerging groups
From 1996 to 2021, Deer Park's population increased by 5,225 people (40.6%). This represents an average annual population change of 1.37% per year over the period.
The largest changes in age structure in this area between 1996 and 2021 were in the age groups:
- 30 to 34 (+612 persons)
- 35 to 39 (+607 persons)
- 70 to 74 (+571 persons)
- 65 to 69 (+555 persons)
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