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, 20 to 24 year olds was the largest age group among residents in Yallambie, accounting for 7.9% (327 people). This share was higher than Banyule (C) (5.5%). Since 2016, the biggest change was in 50 to 54 year olds, which increased by 52 people and 1.2 percentage points.
Section overview
Age structure - Five year age groups
Yallambie - Total persons (Usual residence)
This table summarises five year age groups for Yallambie in 2021 for persons, with comparison against Banyule (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Yallambie, with comparison markers for Banyule (C).
0 to 4
2021 count
288
% of total
6.9%
Change from 2016
-0.7pp
288
6.9%
-0.7pp
5 to 9
2021 count
275
% of total
6.6%
Change from 2016
-1.1pp
275
6.6%
-1.1pp
10 to 14
2021 count
283
% of total
6.8%
Change from 2016
+1.0pp
283
6.8%
+1.0pp
15 to 19
2021 count
299
% of total
7.2%
Change from 2016
+0.6pp
299
7.2%
+0.6pp
20 to 24
2021 count
327
% of total
7.9%
Change from 2016
+0.2pp
327
7.9%
+0.2pp
25 to 29
2021 count
261
% of total
6.3%
Change from 2016
-0.1pp
261
6.3%
-0.1pp
30 to 34
2021 count
305
% of total
7.3%
Change from 2016
+0.3pp
305
7.3%
+0.3pp
35 to 39
2021 count
290
% of total
7.0%
Change from 2016
-0.9pp
290
7.0%
-0.9pp
40 to 44
2021 count
319
% of total
7.7%
Change from 2016
-0.8pp
319
7.7%
-0.8pp
45 to 49
2021 count
297
% of total
7.1%
Change from 2016
-0.1pp
297
7.1%
-0.1pp
50 to 54
2021 count
271
% of total
6.5%
Change from 2016
+1.2pp
271
6.5%
+1.2pp
55 to 59
2021 count
204
% of total
4.9%
Change from 2016
-0.2pp
204
4.9%
-0.2pp
60 to 64
2021 count
188
% of total
4.5%
Change from 2016
-0.2pp
188
4.5%
-0.2pp
65 to 69
2021 count
163
% of total
3.9%
Change from 2016
-0.4pp
163
3.9%
-0.4pp
70 to 74
2021 count
156
% of total
3.7%
Change from 2016
-0.1pp
156
3.7%
-0.1pp
75 to 79
2021 count
129
% of total
3.1%
Change from 2016
+1.1pp
129
3.1%
+1.1pp
80 to 84
2021 count
62
% of total
1.5%
Change from 2016
+0.2pp
62
1.5%
+0.2pp
85 and over
2021 count
47
% of total
1.1%
Change from 2016
+0.1pp
47
1.1%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-23
-0.7pp
5 to 9
-43
-1.1pp
10 to 14
+45
+1.0pp
15 to 19
+26
+0.6pp
20 to 24
+11
+0.2pp
25 to 29
-3
-0.1pp
30 to 34
+18
+0.3pp
35 to 39
-34
-0.9pp
40 to 44
-29
-0.8pp
45 to 49
+1
-0.1pp
50 to 54
+52
+1.2pp
55 to 59
-7
-0.2pp
60 to 64
-4
-0.2pp
65 to 69
-12
-0.4pp
70 to 74
-2
-0.1pp
75 to 79
+47
+1.1pp
80 to 84
+10
+0.2pp
85 and over
+6
+0.1pp
Data table
Five year age groups for Yallambie. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Banyule (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Banyule (C)% | Count | % | Banyule (C)% | Count | pp | |
| 0 to 4 | 288 | 6.9% | 5.6% | 311 | 7.6% | 6.4% | -23 | -0.7pp |
| 5 to 9 | 275 | 6.6% | 6.2% | 318 | 7.7% | 6.2% | -43 | -1.1pp |
| 10 to 14 | 283 | 6.8% | 6.0% | 238 | 5.8% | 5.5% | +45 | +1.0pp |
| 15 to 19 | 299 | 7.2% | 5.4% | 273 | 6.6% | 5.6% | +26 | +0.6pp |
| 20 to 24 | 327 | 7.9% | 5.5% | 316 | 7.7% | 6.1% | +11 | +0.2pp |
| 25 to 29 | 261 | 6.3% | 5.9% | 264 | 6.4% | 6.5% | -3 | -0.1pp |
| 30 to 34 | 305 | 7.3% | 7.0% | 287 | 7.0% | 6.9% | +18 | +0.3pp |
| 35 to 39 | 290 | 7.0% | 7.3% | 324 | 7.9% | 7.1% | -34 | -0.9pp |
| 40 to 44 | 319 | 7.7% | 7.1% | 348 | 8.5% | 7.2% | -29 | -0.8pp |
| 45 to 49 | 297 | 7.1% | 6.9% | 296 | 7.2% | 6.9% | +1 | -0.1pp |
| 50 to 54 | 271 | 6.5% | 6.5% | 219 | 5.3% | 6.4% | +52 | +1.2pp |
| 55 to 59 | 204 | 4.9% | 5.9% | 211 | 5.1% | 6.3% | -7 | -0.2pp |
| 60 to 64 | 188 | 4.5% | 5.8% | 192 | 4.7% | 5.6% | -4 | -0.2pp |
| 65 to 69 | 163 | 3.9% | 5.2% | 175 | 4.3% | 5.4% | -12 | -0.4pp |
| 70 to 74 | 156 | 3.7% | 4.9% | 158 | 3.8% | 4.1% | -2 | -0.1pp |
| 75 to 79 | 129 | 3.1% | 3.6% | 82 | 2.0% | 3.0% | +47 | +1.1pp |
| 80 to 84 | 62 | 1.5% | 2.5% | 52 | 1.3% | 2.3% | +10 | +0.2pp |
| 85 and over | 47 | 1.1% | 2.7% | 41 | 1.0% | 2.7% | +6 | +0.1pp |
| Total | 4,161 | 100.0% | 100.0% | 4,117 | 100.0% | 100.0% | +44 | 0.0pp |