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 Morphettville, accounting for 9.3% (343 people). This share was higher than Marion (C) (7.4%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 113 people and 2.1 percentage points.
Section overview
Age structure - Five year age groups
Morphettville - Total persons (Usual residence)
This table summarises five year age groups for Morphettville in 2021 for persons, with comparison against Marion (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Morphettville, with comparison markers for Marion (C).
0 to 4
2021 count
197
% of total
5.3%
Change from 2016
+0.4pp
197
5.3%
+0.4pp
5 to 9
2021 count
172
% of total
4.7%
Change from 2016
-0.1pp
172
4.7%
-0.1pp
10 to 14
2021 count
146
% of total
4.0%
Change from 2016
+0.2pp
146
4.0%
+0.2pp
15 to 19
2021 count
169
% of total
4.6%
Change from 2016
+0.3pp
169
4.6%
+0.3pp
20 to 24
2021 count
251
% of total
6.8%
Change from 2016
+0.1pp
251
6.8%
+0.1pp
25 to 29
2021 count
343
% of total
9.3%
Change from 2016
+2.1pp
343
9.3%
+2.1pp
30 to 34
2021 count
314
% of total
8.5%
Change from 2016
+0.8pp
314
8.5%
+0.8pp
35 to 39
2021 count
288
% of total
7.8%
Change from 2016
+1.8pp
288
7.8%
+1.8pp
40 to 44
2021 count
230
% of total
6.2%
Change from 2016
+0.2pp
230
6.2%
+0.2pp
45 to 49
2021 count
187
% of total
5.1%
Change from 2016
+0.1pp
187
5.1%
+0.1pp
50 to 54
2021 count
169
% of total
4.6%
Change from 2016
-1.1pp
169
4.6%
-1.1pp
55 to 59
2021 count
197
% of total
5.3%
Change from 2016
-0.4pp
197
5.3%
-0.4pp
60 to 64
2021 count
201
% of total
5.5%
Change from 2016
-1.3pp
201
5.5%
-1.3pp
65 to 69
2021 count
208
% of total
5.6%
Change from 2016
+0.6pp
208
5.6%
+0.6pp
70 to 74
2021 count
176
% of total
4.8%
Change from 2016
+0.2pp
176
4.8%
+0.2pp
75 to 79
2021 count
140
% of total
3.8%
Change from 2016
0.0pp
140
3.8%
0.0pp
80 to 84
2021 count
107
% of total
2.9%
Change from 2016
-0.6pp
107
2.9%
-0.6pp
85 and over
2021 count
211
% of total
5.7%
Change from 2016
-2.0pp
211
5.7%
-2.0pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+40
+0.4pp
5 to 9
+17
-0.1pp
10 to 14
+23
+0.2pp
15 to 19
+31
+0.3pp
20 to 24
+36
+0.1pp
25 to 29
+113
+2.1pp
30 to 34
+68
+0.8pp
35 to 39
+94
+1.8pp
40 to 44
+39
+0.2pp
45 to 49
+27
+0.1pp
50 to 54
-15
-1.1pp
55 to 59
+14
-0.4pp
60 to 64
-18
-1.3pp
65 to 69
+48
+0.6pp
70 to 74
+30
+0.2pp
75 to 79
+17
0.0pp
80 to 84
-5
-0.6pp
85 and over
-36
-2.0pp
Data table
Five year age groups for Morphettville. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Marion (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Marion (C)% | Count | % | Marion (C)% | Count | pp | |
| 0 to 4 | 197 | 5.3% | 5.4% | 157 | 4.9% | 5.9% | +40 | +0.4pp |
| 5 to 9 | 172 | 4.7% | 5.6% | 155 | 4.8% | 5.4% | +17 | -0.1pp |
| 10 to 14 | 146 | 4.0% | 5.2% | 123 | 3.8% | 4.9% | +23 | +0.2pp |
| 15 to 19 | 169 | 4.6% | 5.1% | 138 | 4.3% | 5.7% | +31 | +0.3pp |
| 20 to 24 | 251 | 6.8% | 6.7% | 215 | 6.7% | 7.2% | +36 | +0.1pp |
| 25 to 29 | 343 | 9.3% | 7.4% | 230 | 7.2% | 7.3% | +113 | +2.1pp |
| 30 to 34 | 314 | 8.5% | 7.7% | 246 | 7.7% | 7.5% | +68 | +0.8pp |
| 35 to 39 | 288 | 7.8% | 7.5% | 194 | 6.0% | 6.8% | +94 | +1.8pp |
| 40 to 44 | 230 | 6.2% | 6.6% | 191 | 6.0% | 6.4% | +39 | +0.2pp |
| 45 to 49 | 187 | 5.1% | 6.1% | 160 | 5.0% | 6.3% | +27 | +0.1pp |
| 50 to 54 | 169 | 4.6% | 5.9% | 184 | 5.7% | 6.4% | -15 | -1.1pp |
| 55 to 59 | 197 | 5.3% | 5.9% | 183 | 5.7% | 6.6% | +14 | -0.4pp |
| 60 to 64 | 201 | 5.5% | 6.1% | 219 | 6.8% | 6.2% | -18 | -1.3pp |
| 65 to 69 | 208 | 5.6% | 5.7% | 160 | 5.0% | 5.2% | +48 | +0.6pp |
| 70 to 74 | 176 | 4.8% | 4.8% | 146 | 4.6% | 3.7% | +30 | +0.2pp |
| 75 to 79 | 140 | 3.8% | 3.3% | 123 | 3.8% | 2.9% | +17 | 0.0pp |
| 80 to 84 | 107 | 2.9% | 2.3% | 112 | 3.5% | 2.4% | -5 | -0.6pp |
| 85 and over | 211 | 5.7% | 2.9% | 247 | 7.7% | 3.1% | -36 | -2.0pp |
| Total | 3,686 | 100.0% | 100.0% | 3,208 | 100.0% | 100.0% | +478 | 0.0pp |