Population
Five year age groups
About this topic
Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.
This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.
Interpretation notes
- Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
- Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.
Related topics
Key insight
In 2021, 25 to 29 year olds was the largest age group among residents in Sunshine North, accounting for 8.8% (1,066 people). This share was higher than Brimbank (C) (8.1%). Since 2016, the biggest change was in 15 to 19 year olds, which decreased by 118 people and 1.2 percentage points.
Section overview
Age structure - Five year age groups
Sunshine North - Total persons (Usual residence)
This table summarises five year age groups for Sunshine North in 2021 for persons, with comparison against Brimbank (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Sunshine North, with comparison markers for Brimbank (C).
0 to 4
2021 count
701
% of total
5.8%
Change from 2016
-1.0pp
701
5.8%
-1.0pp
5 to 9
2021 count
666
% of total
5.5%
Change from 2016
0.0pp
666
5.5%
0.0pp
10 to 14
2021 count
653
% of total
5.4%
Change from 2016
-0.1pp
653
5.4%
-0.1pp
15 to 19
2021 count
667
% of total
5.5%
Change from 2016
-1.2pp
667
5.5%
-1.2pp
20 to 24
2021 count
856
% of total
7.1%
Change from 2016
-1.1pp
856
7.1%
-1.1pp
25 to 29
2021 count
1,066
% of total
8.8%
Change from 2016
+0.7pp
1,066
8.8%
+0.7pp
30 to 34
2021 count
984
% of total
8.2%
Change from 2016
+0.3pp
984
8.2%
+0.3pp
35 to 39
2021 count
848
% of total
7.0%
Change from 2016
+0.7pp
848
7.0%
+0.7pp
40 to 44
2021 count
698
% of total
5.8%
Change from 2016
-0.6pp
698
5.8%
-0.6pp
45 to 49
2021 count
765
% of total
6.4%
Change from 2016
-0.1pp
765
6.4%
-0.1pp
50 to 54
2021 count
741
% of total
6.2%
Change from 2016
+0.3pp
741
6.2%
+0.3pp
55 to 59
2021 count
746
% of total
6.2%
Change from 2016
+0.4pp
746
6.2%
+0.4pp
60 to 64
2021 count
688
% of total
5.7%
Change from 2016
+0.7pp
688
5.7%
+0.7pp
65 to 69
2021 count
576
% of total
4.8%
Change from 2016
+0.9pp
576
4.8%
+0.9pp
70 to 74
2021 count
438
% of total
3.6%
Change from 2016
+0.4pp
438
3.6%
+0.4pp
75 to 79
2021 count
352
% of total
2.9%
Change from 2016
+0.3pp
352
2.9%
+0.3pp
80 to 84
2021 count
268
% of total
2.2%
Change from 2016
-0.4pp
268
2.2%
-0.4pp
85 and over
2021 count
342
% of total
2.8%
Change from 2016
+0.1pp
342
2.8%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-93
-1.0pp
5 to 9
+21
0.0pp
10 to 14
+10
-0.1pp
15 to 19
-118
-1.2pp
20 to 24
-107
-1.1pp
25 to 29
+117
+0.7pp
30 to 34
+55
+0.3pp
35 to 39
+108
+0.7pp
40 to 44
-56
-0.6pp
45 to 49
+8
-0.1pp
50 to 54
+48
+0.3pp
55 to 59
+62
+0.4pp
60 to 64
+107
+0.7pp
65 to 69
+114
+0.9pp
70 to 74
+58
+0.4pp
75 to 79
+47
+0.3pp
80 to 84
-32
-0.4pp
85 and over
+23
+0.1pp
Data table
Five year age groups for Sunshine North. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Brimbank (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Brimbank (C)% | Count | % | Brimbank (C)% | Count | pp | |
| 0 to 4 | 701 | 5.8% | 5.6% | 794 | 6.8% | 6.7% | -93 | -1.0pp |
| 5 to 9 | 666 | 5.5% | 6.0% | 645 | 5.5% | 6.1% | +21 | 0.0pp |
| 10 to 14 | 653 | 5.4% | 5.7% | 643 | 5.5% | 5.7% | +10 | -0.1pp |
| 15 to 19 | 667 | 5.5% | 5.7% | 785 | 6.7% | 6.3% | -118 | -1.2pp |
| 20 to 24 | 856 | 7.1% | 6.9% | 963 | 8.2% | 7.8% | -107 | -1.1pp |
| 25 to 29 | 1,066 | 8.8% | 8.1% | 949 | 8.1% | 8.1% | +117 | +0.7pp |
| 30 to 34 | 984 | 8.2% | 7.6% | 929 | 7.9% | 8.0% | +55 | +0.3pp |
| 35 to 39 | 848 | 7.0% | 7.2% | 740 | 6.3% | 6.9% | +108 | +0.7pp |
| 40 to 44 | 698 | 5.8% | 6.4% | 754 | 6.4% | 6.6% | -56 | -0.6pp |
| 45 to 49 | 765 | 6.4% | 6.3% | 757 | 6.5% | 6.5% | +8 | -0.1pp |
| 50 to 54 | 741 | 6.2% | 6.3% | 693 | 5.9% | 6.3% | +48 | +0.3pp |
| 55 to 59 | 746 | 6.2% | 6.1% | 684 | 5.8% | 6.0% | +62 | +0.4pp |
| 60 to 64 | 688 | 5.7% | 5.8% | 581 | 5.0% | 5.4% | +107 | +0.7pp |
| 65 to 69 | 576 | 4.8% | 5.1% | 462 | 3.9% | 4.7% | +114 | +0.9pp |
| 70 to 74 | 438 | 3.6% | 4.3% | 380 | 3.2% | 3.3% | +58 | +0.4pp |
| 75 to 79 | 352 | 2.9% | 3.0% | 305 | 2.6% | 2.4% | +47 | +0.3pp |
| 80 to 84 | 268 | 2.2% | 2.0% | 300 | 2.6% | 1.7% | -32 | -0.4pp |
| 85 and over | 342 | 2.8% | 1.9% | 319 | 2.7% | 1.5% | +23 | +0.1pp |
| Total | 12,047 | 100.0% | 100.0% | 11,700 | 100.0% | 100.0% | +347 | 0.0pp |