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 Frankston North, accounting for 8.9% (506 people). This share was higher than Frankston (C) (6.4%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 98 people and 1.8 percentage points.
Section overview
Age structure - Five year age groups
Frankston North - Total persons (Usual residence)
This table summarises five year age groups for Frankston North in 2021 for persons, with comparison against Frankston (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Frankston North, with comparison markers for Frankston (C).
0 to 4
2021 count
377
% of total
6.6%
Change from 2016
-0.1pp
377
6.6%
-0.1pp
5 to 9
2021 count
333
% of total
5.8%
Change from 2016
-1.0pp
333
5.8%
-1.0pp
10 to 14
2021 count
308
% of total
5.4%
Change from 2016
+0.2pp
308
5.4%
+0.2pp
15 to 19
2021 count
294
% of total
5.1%
Change from 2016
+0.2pp
294
5.1%
+0.2pp
20 to 24
2021 count
341
% of total
6.0%
Change from 2016
-1.3pp
341
6.0%
-1.3pp
25 to 29
2021 count
506
% of total
8.9%
Change from 2016
+1.8pp
506
8.9%
+1.8pp
30 to 34
2021 count
448
% of total
7.8%
Change from 2016
+0.9pp
448
7.8%
+0.9pp
35 to 39
2021 count
398
% of total
7.0%
Change from 2016
+1.5pp
398
7.0%
+1.5pp
40 to 44
2021 count
308
% of total
5.4%
Change from 2016
-0.4pp
308
5.4%
-0.4pp
45 to 49
2021 count
306
% of total
5.4%
Change from 2016
-1.5pp
306
5.4%
-1.5pp
50 to 54
2021 count
370
% of total
6.5%
Change from 2016
-0.1pp
370
6.5%
-0.1pp
55 to 59
2021 count
360
% of total
6.3%
Change from 2016
-0.1pp
360
6.3%
-0.1pp
60 to 64
2021 count
344
% of total
6.0%
Change from 2016
+1.0pp
344
6.0%
+1.0pp
65 to 69
2021 count
250
% of total
4.4%
Change from 2016
-0.4pp
250
4.4%
-0.4pp
70 to 74
2021 count
221
% of total
3.9%
Change from 2016
-0.2pp
221
3.9%
-0.2pp
75 to 79
2021 count
208
% of total
3.6%
Change from 2016
-0.1pp
208
3.6%
-0.1pp
80 to 84
2021 count
142
% of total
2.5%
Change from 2016
-0.5pp
142
2.5%
-0.5pp
85 and over
2021 count
194
% of total
3.4%
Change from 2016
-0.1pp
194
3.4%
-0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-10
-0.1pp
5 to 9
-57
-1.0pp
10 to 14
+9
+0.2pp
15 to 19
+14
+0.2pp
20 to 24
-78
-1.3pp
25 to 29
+98
+1.8pp
30 to 34
+49
+0.9pp
35 to 39
+79
+1.5pp
40 to 44
-26
-0.4pp
45 to 49
-94
-1.5pp
50 to 54
-10
-0.1pp
55 to 59
-11
-0.1pp
60 to 64
+54
+1.0pp
65 to 69
-27
-0.4pp
70 to 74
-17
-0.2pp
75 to 79
-5
-0.1pp
80 to 84
-30
-0.5pp
85 and over
-7
-0.1pp
Data table
Five year age groups for Frankston North. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Frankston (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Frankston (C)% | Count | % | Frankston (C)% | Count | pp | |
| 0 to 4 | 377 | 6.6% | 6.2% | 387 | 6.7% | 6.7% | -10 | -0.1pp |
| 5 to 9 | 333 | 5.8% | 6.3% | 390 | 6.8% | 6.2% | -57 | -1.0pp |
| 10 to 14 | 308 | 5.4% | 6.1% | 299 | 5.2% | 5.7% | +9 | +0.2pp |
| 15 to 19 | 294 | 5.1% | 5.6% | 280 | 4.9% | 6.0% | +14 | +0.2pp |
| 20 to 24 | 341 | 6.0% | 5.6% | 419 | 7.3% | 6.3% | -78 | -1.3pp |
| 25 to 29 | 506 | 8.9% | 6.4% | 408 | 7.1% | 6.6% | +98 | +1.8pp |
| 30 to 34 | 448 | 7.8% | 7.3% | 399 | 6.9% | 7.2% | +49 | +0.9pp |
| 35 to 39 | 398 | 7.0% | 7.4% | 319 | 5.5% | 6.8% | +79 | +1.5pp |
| 40 to 44 | 308 | 5.4% | 6.8% | 334 | 5.8% | 7.1% | -26 | -0.4pp |
| 45 to 49 | 306 | 5.4% | 6.9% | 400 | 6.9% | 7.2% | -94 | -1.5pp |
| 50 to 54 | 370 | 6.5% | 6.7% | 380 | 6.6% | 6.8% | -10 | -0.1pp |
| 55 to 59 | 360 | 6.3% | 6.3% | 371 | 6.4% | 6.5% | -11 | -0.1pp |
| 60 to 64 | 344 | 6.0% | 5.9% | 290 | 5.0% | 5.5% | +54 | +1.0pp |
| 65 to 69 | 250 | 4.4% | 4.9% | 277 | 4.8% | 5.0% | -27 | -0.4pp |
| 70 to 74 | 221 | 3.9% | 4.4% | 238 | 4.1% | 3.7% | -17 | -0.2pp |
| 75 to 79 | 208 | 3.6% | 3.1% | 213 | 3.7% | 2.7% | -5 | -0.1pp |
| 80 to 84 | 142 | 2.5% | 2.0% | 172 | 3.0% | 1.9% | -30 | -0.5pp |
| 85 and over | 194 | 3.4% | 2.2% | 201 | 3.5% | 2.0% | -7 | -0.1pp |
| Total | 5,711 | 100.0% | 100.0% | 5,762 | 100.0% | 100.0% | -51 | 0.0pp |