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 Tullamarine (part), accounting for 9.4% (631 people). This share was higher than Hume (C) (8.7%). Since 2016, the biggest change was in 70 to 74 year olds, which increased by 135 people and 1.9 percentage points.
Section overview
Age structure - Five year age groups
Tullamarine (part) - Total persons (Usual residence)
This table summarises five year age groups for Tullamarine (part) in 2021 for persons, with comparison against Hume (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Tullamarine (part), with comparison markers for Hume (C).
0 to 4
2021 count
399
% of total
5.9%
Change from 2016
-0.1pp
399
5.9%
-0.1pp
5 to 9
2021 count
318
% of total
4.7%
Change from 2016
+0.1pp
318
4.7%
+0.1pp
10 to 14
2021 count
296
% of total
4.4%
Change from 2016
+0.3pp
296
4.4%
+0.3pp
15 to 19
2021 count
264
% of total
3.9%
Change from 2016
-0.3pp
264
3.9%
-0.3pp
20 to 24
2021 count
370
% of total
5.5%
Change from 2016
-1.1pp
370
5.5%
-1.1pp
25 to 29
2021 count
571
% of total
8.5%
Change from 2016
-1.1pp
571
8.5%
-1.1pp
30 to 34
2021 count
631
% of total
9.4%
Change from 2016
+0.3pp
631
9.4%
+0.3pp
35 to 39
2021 count
530
% of total
7.9%
Change from 2016
+0.6pp
530
7.9%
+0.6pp
40 to 44
2021 count
455
% of total
6.8%
Change from 2016
+0.2pp
455
6.8%
+0.2pp
45 to 49
2021 count
388
% of total
5.8%
Change from 2016
-0.8pp
388
5.8%
-0.8pp
50 to 54
2021 count
411
% of total
6.1%
Change from 2016
+0.6pp
411
6.1%
+0.6pp
55 to 59
2021 count
377
% of total
5.6%
Change from 2016
-0.7pp
377
5.6%
-0.7pp
60 to 64
2021 count
395
% of total
5.9%
Change from 2016
+0.1pp
395
5.9%
+0.1pp
65 to 69
2021 count
341
% of total
5.1%
Change from 2016
-1.4pp
341
5.1%
-1.4pp
70 to 74
2021 count
425
% of total
6.3%
Change from 2016
+1.9pp
425
6.3%
+1.9pp
75 to 79
2021 count
280
% of total
4.2%
Change from 2016
+0.6pp
280
4.2%
+0.6pp
80 to 84
2021 count
191
% of total
2.8%
Change from 2016
+1.0pp
191
2.8%
+1.0pp
85 and over
2021 count
118
% of total
1.8%
Change from 2016
+0.2pp
118
1.8%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+3
-0.1pp
5 to 9
+14
+0.1pp
10 to 14
+27
+0.3pp
15 to 19
-11
-0.3pp
20 to 24
-63
-1.1pp
25 to 29
-65
-1.1pp
30 to 34
+29
+0.3pp
35 to 39
+51
+0.6pp
40 to 44
+20
+0.2pp
45 to 49
-45
-0.8pp
50 to 54
+48
+0.6pp
55 to 59
-36
-0.7pp
60 to 64
+10
+0.1pp
65 to 69
-88
-1.4pp
70 to 74
+135
+1.9pp
75 to 79
+41
+0.6pp
80 to 84
+75
+1.0pp
85 and over
+14
+0.2pp
Data table
Five year age groups for Tullamarine (part). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Hume (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Hume (C)% | Count | % | Hume (C)% | Count | pp | |
| 0 to 4 | 399 | 5.9% | 7.7% | 396 | 6.0% | 7.9% | +3 | -0.1pp |
| 5 to 9 | 318 | 4.7% | 7.8% | 304 | 4.6% | 7.5% | +14 | +0.1pp |
| 10 to 14 | 296 | 4.4% | 7.0% | 269 | 4.1% | 6.9% | +27 | +0.3pp |
| 15 to 19 | 264 | 3.9% | 6.2% | 275 | 4.2% | 7.1% | -11 | -0.3pp |
| 20 to 24 | 370 | 5.5% | 6.8% | 433 | 6.6% | 7.4% | -63 | -1.1pp |
| 25 to 29 | 571 | 8.5% | 7.7% | 636 | 9.6% | 7.9% | -65 | -1.1pp |
| 30 to 34 | 631 | 9.4% | 8.7% | 602 | 9.1% | 7.9% | +29 | +0.3pp |
| 35 to 39 | 530 | 7.9% | 8.4% | 479 | 7.3% | 7.2% | +51 | +0.6pp |
| 40 to 44 | 455 | 6.8% | 6.8% | 435 | 6.6% | 6.7% | +20 | +0.2pp |
| 45 to 49 | 388 | 5.8% | 5.9% | 433 | 6.6% | 6.9% | -45 | -0.8pp |
| 50 to 54 | 411 | 6.1% | 5.9% | 363 | 5.5% | 6.5% | +48 | +0.6pp |
| 55 to 59 | 377 | 5.6% | 5.5% | 413 | 6.3% | 5.5% | -36 | -0.7pp |
| 60 to 64 | 395 | 5.9% | 4.6% | 385 | 5.8% | 4.5% | +10 | +0.1pp |
| 65 to 69 | 341 | 5.1% | 3.7% | 429 | 6.5% | 3.7% | -88 | -1.4pp |
| 70 to 74 | 425 | 6.3% | 3.0% | 290 | 4.4% | 2.6% | +135 | +1.9pp |
| 75 to 79 | 280 | 4.2% | 2.0% | 239 | 3.6% | 1.8% | +41 | +0.6pp |
| 80 to 84 | 191 | 2.8% | 1.2% | 116 | 1.8% | 1.2% | +75 | +1.0pp |
| 85 and over | 118 | 1.8% | 1.0% | 104 | 1.6% | 1.0% | +14 | +0.2pp |
| Total | 6,733 | 100.0% | 100.0% | 6,605 | 100.0% | 100.0% | +128 | 0.0pp |