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, 30 to 34 year olds was the largest age group among residents in Heidelberg Heights, accounting for 11.9% (801 people). This share was higher than Banyule (C) (7%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 801 people and 11.9 percentage points.
Section overview
Age structure - Five year age groups
Heidelberg Heights - Total persons (Usual residence)
This table summarises five year age groups for Heidelberg Heights 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 Heidelberg Heights, with comparison markers for Banyule (C).
0 to 4
2021 count
438
% of total
6.5%
Change from 2016
+6.5pp
438
6.5%
+6.5pp
5 to 9
2021 count
386
% of total
5.7%
Change from 2016
+5.7pp
386
5.7%
+5.7pp
10 to 14
2021 count
291
% of total
4.3%
Change from 2016
+4.3pp
291
4.3%
+4.3pp
15 to 19
2021 count
252
% of total
3.7%
Change from 2016
+3.7pp
252
3.7%
+3.7pp
20 to 24
2021 count
479
% of total
7.1%
Change from 2016
+7.1pp
479
7.1%
+7.1pp
25 to 29
2021 count
643
% of total
9.5%
Change from 2016
+9.5pp
643
9.5%
+9.5pp
30 to 34
2021 count
801
% of total
11.9%
Change from 2016
+11.9pp
801
11.9%
+11.9pp
35 to 39
2021 count
601
% of total
8.9%
Change from 2016
+8.9pp
601
8.9%
+8.9pp
40 to 44
2021 count
471
% of total
7.0%
Change from 2016
-8.8pp
471
7.0%
-8.8pp
45 to 49
2021 count
416
% of total
6.2%
Change from 2016
+6.2pp
416
6.2%
+6.2pp
50 to 54
2021 count
372
% of total
5.5%
Change from 2016
+5.5pp
372
5.5%
+5.5pp
55 to 59
2021 count
419
% of total
6.2%
Change from 2016
+6.2pp
419
6.2%
+6.2pp
60 to 64
2021 count
372
% of total
5.5%
Change from 2016
-10.3pp
372
5.5%
-10.3pp
65 to 69
2021 count
277
% of total
4.1%
Change from 2016
+4.1pp
277
4.1%
+4.1pp
70 to 74
2021 count
210
% of total
3.1%
Change from 2016
+3.1pp
210
3.1%
+3.1pp
75 to 79
2021 count
132
% of total
2.0%
Change from 2016
+2.0pp
132
2.0%
+2.0pp
80 to 84
2021 count
90
% of total
1.3%
Change from 2016
+1.3pp
90
1.3%
+1.3pp
85 and over
2021 count
126
% of total
1.9%
Change from 2016
+1.9pp
126
1.9%
+1.9pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+438
+6.5pp
5 to 9
+386
+5.7pp
10 to 14
+291
+4.3pp
15 to 19
+252
+3.7pp
20 to 24
+479
+7.1pp
25 to 29
+643
+9.5pp
30 to 34
+801
+11.9pp
35 to 39
+601
+8.9pp
40 to 44
+468
-8.8pp
45 to 49
+416
+6.2pp
50 to 54
+372
+5.5pp
55 to 59
+419
+6.2pp
60 to 64
+369
-10.3pp
65 to 69
+277
+4.1pp
70 to 74
+210
+3.1pp
75 to 79
+132
+2.0pp
80 to 84
+90
+1.3pp
85 and over
+126
+1.9pp
Data table
Five year age groups for Heidelberg Heights. 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 | 438 | 6.5% | 5.6% | 0 | 0.0% | 6.4% | +438 | +6.5pp |
| 5 to 9 | 386 | 5.7% | 6.2% | 0 | 0.0% | 6.2% | +386 | +5.7pp |
| 10 to 14 | 291 | 4.3% | 6.0% | 0 | 0.0% | 5.5% | +291 | +4.3pp |
| 15 to 19 | 252 | 3.7% | 5.4% | 0 | 0.0% | 5.6% | +252 | +3.7pp |
| 20 to 24 | 479 | 7.1% | 5.5% | 0 | 0.0% | 6.1% | +479 | +7.1pp |
| 25 to 29 | 643 | 9.5% | 5.9% | 0 | 0.0% | 6.5% | +643 | +9.5pp |
| 30 to 34 | 801 | 11.9% | 7.0% | 0 | 0.0% | 6.9% | +801 | +11.9pp |
| 35 to 39 | 601 | 8.9% | 7.3% | 0 | 0.0% | 7.1% | +601 | +8.9pp |
| 40 to 44 | 471 | 7.0% | 7.1% | 3 | 15.8% | 7.2% | +468 | -8.8pp |
| 45 to 49 | 416 | 6.2% | 6.9% | 0 | 0.0% | 6.9% | +416 | +6.2pp |
| 50 to 54 | 372 | 5.5% | 6.5% | 0 | 0.0% | 6.4% | +372 | +5.5pp |
| 55 to 59 | 419 | 6.2% | 5.9% | 0 | 0.0% | 6.3% | +419 | +6.2pp |
| 60 to 64 | 372 | 5.5% | 5.8% | 3 | 15.8% | 5.6% | +369 | -10.3pp |
| 65 to 69 | 277 | 4.1% | 5.2% | 0 | 0.0% | 5.4% | +277 | +4.1pp |
| 70 to 74 | 210 | 3.1% | 4.9% | 0 | 0.0% | 4.1% | +210 | +3.1pp |
| 75 to 79 | 132 | 2.0% | 3.6% | 0 | 0.0% | 3.0% | +132 | +2.0pp |
| 80 to 84 | 90 | 1.3% | 2.5% | 0 | 0.0% | 2.3% | +90 | +1.3pp |
| 85 and over | 126 | 1.9% | 2.7% | 0 | 0.0% | 2.7% | +126 | +1.9pp |
| Total | 6,758 | 100.0% | 100.0% | 19 | 100.0% | 100.0% | +6,739 | 0.0pp |