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 Sinagra, accounting for 10.2% (316 people). This share was higher than Wanneroo (C) (7.4%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 112 people and 2.9 percentage points.
Section overview
Age structure - Five year age groups
Sinagra - Total persons (Usual residence)
This table summarises five year age groups for Sinagra in 2021 for persons, with comparison against Wanneroo (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Sinagra, with comparison markers for Wanneroo (C).
0 to 4
2021 count
307
% of total
9.9%
Change from 2016
-1.6pp
307
9.9%
-1.6pp
5 to 9
2021 count
280
% of total
9.0%
Change from 2016
-0.1pp
280
9.0%
-0.1pp
10 to 14
2021 count
239
% of total
7.7%
Change from 2016
+2.9pp
239
7.7%
+2.9pp
15 to 19
2021 count
157
% of total
5.1%
Change from 2016
0.0pp
157
5.1%
0.0pp
20 to 24
2021 count
206
% of total
6.6%
Change from 2016
+0.1pp
206
6.6%
+0.1pp
25 to 29
2021 count
273
% of total
8.8%
Change from 2016
-2.3pp
273
8.8%
-2.3pp
30 to 34
2021 count
316
% of total
10.2%
Change from 2016
-2.0pp
316
10.2%
-2.0pp
35 to 39
2021 count
288
% of total
9.3%
Change from 2016
+1.4pp
288
9.3%
+1.4pp
40 to 44
2021 count
227
% of total
7.3%
Change from 2016
0.0pp
227
7.3%
0.0pp
45 to 49
2021 count
176
% of total
5.7%
Change from 2016
-0.3pp
176
5.7%
-0.3pp
50 to 54
2021 count
163
% of total
5.3%
Change from 2016
+0.4pp
163
5.3%
+0.4pp
55 to 59
2021 count
134
% of total
4.3%
Change from 2016
+0.6pp
134
4.3%
+0.6pp
60 to 64
2021 count
105
% of total
3.4%
Change from 2016
+0.4pp
105
3.4%
+0.4pp
65 to 69
2021 count
93
% of total
3.0%
Change from 2016
+0.2pp
93
3.0%
+0.2pp
70 to 74
2021 count
61
% of total
2.0%
Change from 2016
+0.4pp
61
2.0%
+0.4pp
75 to 79
2021 count
44
% of total
1.4%
Change from 2016
0.0pp
44
1.4%
0.0pp
80 to 84
2021 count
23
% of total
0.7%
Change from 2016
+0.2pp
23
0.7%
+0.2pp
85 and over
2021 count
5
% of total
0.2%
Change from 2016
-0.3pp
5
0.2%
-0.3pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+4
-1.6pp
5 to 9
+40
-0.1pp
10 to 14
+112
+2.9pp
15 to 19
+24
0.0pp
20 to 24
+34
+0.1pp
25 to 29
-20
-2.3pp
30 to 34
-6
-2.0pp
35 to 39
+80
+1.4pp
40 to 44
+35
0.0pp
45 to 49
+18
-0.3pp
50 to 54
+34
+0.4pp
55 to 59
+36
+0.6pp
60 to 64
+26
+0.4pp
65 to 69
+19
+0.2pp
70 to 74
+20
+0.4pp
75 to 79
+8
0.0pp
80 to 84
+11
+0.2pp
85 and over
-7
-0.3pp
Data table
Five year age groups for Sinagra. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Wanneroo (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Wanneroo (C)% | Count | % | Wanneroo (C)% | Count | pp | |
| 0 to 4 | 307 | 9.9% | 7.1% | 303 | 11.5% | 8.0% | +4 | -1.6pp |
| 5 to 9 | 280 | 9.0% | 7.6% | 240 | 9.1% | 7.9% | +40 | -0.1pp |
| 10 to 14 | 239 | 7.7% | 7.4% | 127 | 4.8% | 7.1% | +112 | +2.9pp |
| 15 to 19 | 157 | 5.1% | 6.6% | 133 | 5.1% | 7.1% | +24 | 0.0pp |
| 20 to 24 | 206 | 6.6% | 6.4% | 172 | 6.5% | 6.8% | +34 | +0.1pp |
| 25 to 29 | 273 | 8.8% | 6.5% | 293 | 11.1% | 7.5% | -20 | -2.3pp |
| 30 to 34 | 316 | 10.2% | 7.4% | 322 | 12.2% | 8.1% | -6 | -2.0pp |
| 35 to 39 | 288 | 9.3% | 7.9% | 208 | 7.9% | 7.5% | +80 | +1.4pp |
| 40 to 44 | 227 | 7.3% | 6.9% | 192 | 7.3% | 7.6% | +35 | 0.0pp |
| 45 to 49 | 176 | 5.7% | 7.0% | 158 | 6.0% | 7.4% | +18 | -0.3pp |
| 50 to 54 | 163 | 5.3% | 6.7% | 129 | 4.9% | 6.2% | +34 | +0.4pp |
| 55 to 59 | 134 | 4.3% | 5.7% | 98 | 3.7% | 5.0% | +36 | +0.6pp |
| 60 to 64 | 105 | 3.4% | 4.7% | 79 | 3.0% | 3.9% | +26 | +0.4pp |
| 65 to 69 | 93 | 3.0% | 3.8% | 74 | 2.8% | 3.5% | +19 | +0.2pp |
| 70 to 74 | 61 | 2.0% | 3.3% | 41 | 1.6% | 2.4% | +20 | +0.4pp |
| 75 to 79 | 44 | 1.4% | 2.2% | 36 | 1.4% | 1.8% | +8 | 0.0pp |
| 80 to 84 | 23 | 0.7% | 1.5% | 12 | 0.5% | 1.2% | +11 | +0.2pp |
| 85 and over | 5 | 0.2% | 1.3% | 12 | 0.5% | 1.0% | -7 | -0.3pp |
| Total | 3,100 | 100.0% | 100.0% | 2,632 | 100.0% | 100.0% | +468 | 0.0pp |