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, 50 to 54 year olds was the largest age group among residents in Balmain East (part), accounting for 9.8% (186 people). This share was higher than Inner West (A) (6.8%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 47 people and 2.3 percentage points.
Section overview
Age structure - Five year age groups
Balmain East (part) - Total persons (Usual residence)
This table summarises five year age groups for Balmain East (part) in 2021 for persons, with comparison against Inner West (A) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Balmain East (part), with comparison markers for Inner West (A).
0 to 4
2021 count
74
% of total
3.9%
Change from 2016
-1.0pp
74
3.9%
-1.0pp
5 to 9
2021 count
92
% of total
4.8%
Change from 2016
-0.1pp
92
4.8%
-0.1pp
10 to 14
2021 count
107
% of total
5.6%
Change from 2016
-0.1pp
107
5.6%
-0.1pp
15 to 19
2021 count
110
% of total
5.8%
Change from 2016
+2.3pp
110
5.8%
+2.3pp
20 to 24
2021 count
66
% of total
3.5%
Change from 2016
-2.3pp
66
3.5%
-2.3pp
25 to 29
2021 count
101
% of total
5.3%
Change from 2016
-0.2pp
101
5.3%
-0.2pp
30 to 34
2021 count
118
% of total
6.2%
Change from 2016
-1.3pp
118
6.2%
-1.3pp
35 to 39
2021 count
129
% of total
6.8%
Change from 2016
-0.2pp
129
6.8%
-0.2pp
40 to 44
2021 count
130
% of total
6.8%
Change from 2016
-1.1pp
130
6.8%
-1.1pp
45 to 49
2021 count
148
% of total
7.8%
Change from 2016
-1.2pp
148
7.8%
-1.2pp
50 to 54
2021 count
186
% of total
9.8%
Change from 2016
+1.5pp
186
9.8%
+1.5pp
55 to 59
2021 count
140
% of total
7.4%
Change from 2016
+0.9pp
140
7.4%
+0.9pp
60 to 64
2021 count
132
% of total
6.9%
Change from 2016
+0.4pp
132
6.9%
+0.4pp
65 to 69
2021 count
111
% of total
5.8%
Change from 2016
-1.7pp
111
5.8%
-1.7pp
70 to 74
2021 count
123
% of total
6.5%
Change from 2016
+1.9pp
123
6.5%
+1.9pp
75 to 79
2021 count
82
% of total
4.3%
Change from 2016
+1.7pp
82
4.3%
+1.7pp
80 to 84
2021 count
42
% of total
2.2%
Change from 2016
+0.4pp
42
2.2%
+0.4pp
85 and over
2021 count
32
% of total
1.7%
Change from 2016
+0.3pp
32
1.7%
+0.3pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-21
-1.0pp
5 to 9
-3
-0.1pp
10 to 14
-4
-0.1pp
15 to 19
+42
+2.3pp
20 to 24
-47
-2.3pp
25 to 29
-6
-0.2pp
30 to 34
-26
-1.3pp
35 to 39
-7
-0.2pp
40 to 44
-23
-1.1pp
45 to 49
-25
-1.2pp
50 to 54
+26
+1.5pp
55 to 59
+15
+0.9pp
60 to 64
+6
+0.4pp
65 to 69
-33
-1.7pp
70 to 74
+34
+1.9pp
75 to 79
+32
+1.7pp
80 to 84
+8
+0.4pp
85 and over
+5
+0.3pp
Data table
Five year age groups for Balmain East (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Inner West (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Inner West (A)% | Count | % | Inner West (A)% | Count | pp | |
| 0 to 4 | 74 | 3.9% | 5.0% | 95 | 4.9% | 5.9% | -21 | -1.0pp |
| 5 to 9 | 92 | 4.8% | 4.8% | 95 | 4.9% | 5.3% | -3 | -0.1pp |
| 10 to 14 | 107 | 5.6% | 4.8% | 111 | 5.7% | 4.1% | -4 | -0.1pp |
| 15 to 19 | 110 | 5.8% | 4.1% | 68 | 3.5% | 3.7% | +42 | +2.3pp |
| 20 to 24 | 66 | 3.5% | 6.2% | 113 | 5.8% | 7.0% | -47 | -2.3pp |
| 25 to 29 | 101 | 5.3% | 9.4% | 107 | 5.5% | 10.1% | -6 | -0.2pp |
| 30 to 34 | 118 | 6.2% | 9.9% | 144 | 7.5% | 10.2% | -26 | -1.3pp |
| 35 to 39 | 129 | 6.8% | 9.0% | 136 | 7.0% | 9.0% | -7 | -0.2pp |
| 40 to 44 | 130 | 6.8% | 7.7% | 153 | 7.9% | 8.4% | -23 | -1.1pp |
| 45 to 49 | 148 | 7.8% | 7.5% | 173 | 9.0% | 7.4% | -25 | -1.2pp |
| 50 to 54 | 186 | 9.8% | 6.8% | 160 | 8.3% | 6.5% | +26 | +1.5pp |
| 55 to 59 | 140 | 7.4% | 5.9% | 125 | 6.5% | 5.5% | +15 | +0.9pp |
| 60 to 64 | 132 | 6.9% | 4.9% | 126 | 6.5% | 4.7% | +6 | +0.4pp |
| 65 to 69 | 111 | 5.8% | 4.2% | 144 | 7.5% | 3.9% | -33 | -1.7pp |
| 70 to 74 | 123 | 6.5% | 3.6% | 89 | 4.6% | 2.8% | +34 | +1.9pp |
| 75 to 79 | 82 | 4.3% | 2.5% | 50 | 2.6% | 2.1% | +32 | +1.7pp |
| 80 to 84 | 42 | 2.2% | 1.8% | 34 | 1.8% | 1.7% | +8 | +0.4pp |
| 85 and over | 32 | 1.7% | 2.0% | 27 | 1.4% | 1.7% | +5 | +0.3pp |
| Total | 1,900 | 100.0% | 100.0% | 1,932 | 100.0% | 100.0% | -32 | 0.0pp |