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 Eglinton (WA), accounting for 12.3% (456 people). This share was higher than Wanneroo (C) (7.4%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 271 people and 3.8 percentage points.
Section overview
Age structure - Five year age groups
Eglinton (WA) - Total persons (Usual residence)
This table summarises five year age groups for Eglinton (WA) 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 Eglinton (WA), with comparison markers for Wanneroo (C).
0 to 4
2021 count
454
% of total
12.3%
Change from 2016
+0.9pp
454
12.3%
+0.9pp
5 to 9
2021 count
340
% of total
9.2%
Change from 2016
+1.0pp
340
9.2%
+1.0pp
10 to 14
2021 count
238
% of total
6.4%
Change from 2016
+0.9pp
238
6.4%
+0.9pp
15 to 19
2021 count
177
% of total
4.8%
Change from 2016
-0.6pp
177
4.8%
-0.6pp
20 to 24
2021 count
262
% of total
7.1%
Change from 2016
-4.0pp
262
7.1%
-4.0pp
25 to 29
2021 count
417
% of total
11.3%
Change from 2016
-4.3pp
417
11.3%
-4.3pp
30 to 34
2021 count
456
% of total
12.3%
Change from 2016
-0.2pp
456
12.3%
-0.2pp
35 to 39
2021 count
376
% of total
10.1%
Change from 2016
+3.8pp
376
10.1%
+3.8pp
40 to 44
2021 count
197
% of total
5.3%
Change from 2016
-2.8pp
197
5.3%
-2.8pp
45 to 49
2021 count
208
% of total
5.6%
Change from 2016
-0.3pp
208
5.6%
-0.3pp
50 to 54
2021 count
170
% of total
4.6%
Change from 2016
+1.6pp
170
4.6%
+1.6pp
55 to 59
2021 count
117
% of total
3.2%
Change from 2016
+0.6pp
117
3.2%
+0.6pp
60 to 64
2021 count
92
% of total
2.5%
Change from 2016
+0.8pp
92
2.5%
+0.8pp
65 to 69
2021 count
97
% of total
2.6%
Change from 2016
+1.4pp
97
2.6%
+1.4pp
70 to 74
2021 count
52
% of total
1.4%
Change from 2016
+0.6pp
52
1.4%
+0.6pp
75 to 79
2021 count
33
% of total
0.9%
Change from 2016
+0.7pp
33
0.9%
+0.7pp
80 to 84
2021 count
14
% of total
0.4%
Change from 2016
+0.2pp
14
0.4%
+0.2pp
85 and over
2021 count
0
% of total
0.0%
Change from 2016
-0.2pp
0
0.0%
-0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+265
+0.9pp
5 to 9
+203
+1.0pp
10 to 14
+147
+0.9pp
15 to 19
+87
-0.6pp
20 to 24
+77
-4.0pp
25 to 29
+157
-4.3pp
30 to 34
+248
-0.2pp
35 to 39
+271
+3.8pp
40 to 44
+62
-2.8pp
45 to 49
+110
-0.3pp
50 to 54
+119
+1.6pp
55 to 59
+74
+0.6pp
60 to 64
+63
+0.8pp
65 to 69
+77
+1.4pp
70 to 74
+39
+0.6pp
75 to 79
+30
+0.7pp
80 to 84
+11
+0.2pp
85 and over
-3
-0.2pp
Data table
Five year age groups for Eglinton (WA). 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 | 454 | 12.3% | 7.1% | 189 | 11.4% | 8.0% | +265 | +0.9pp |
| 5 to 9 | 340 | 9.2% | 7.6% | 137 | 8.2% | 7.9% | +203 | +1.0pp |
| 10 to 14 | 238 | 6.4% | 7.4% | 91 | 5.5% | 7.1% | +147 | +0.9pp |
| 15 to 19 | 177 | 4.8% | 6.6% | 90 | 5.4% | 7.1% | +87 | -0.6pp |
| 20 to 24 | 262 | 7.1% | 6.4% | 185 | 11.1% | 6.8% | +77 | -4.0pp |
| 25 to 29 | 417 | 11.3% | 6.5% | 260 | 15.6% | 7.5% | +157 | -4.3pp |
| 30 to 34 | 456 | 12.3% | 7.4% | 208 | 12.5% | 8.1% | +248 | -0.2pp |
| 35 to 39 | 376 | 10.1% | 7.9% | 105 | 6.3% | 7.5% | +271 | +3.8pp |
| 40 to 44 | 197 | 5.3% | 6.9% | 135 | 8.1% | 7.6% | +62 | -2.8pp |
| 45 to 49 | 208 | 5.6% | 7.0% | 98 | 5.9% | 7.4% | +110 | -0.3pp |
| 50 to 54 | 170 | 4.6% | 6.7% | 51 | 3.0% | 6.2% | +119 | +1.6pp |
| 55 to 59 | 117 | 3.2% | 5.7% | 43 | 2.6% | 5.0% | +74 | +0.6pp |
| 60 to 64 | 92 | 2.5% | 4.7% | 29 | 1.7% | 3.9% | +63 | +0.8pp |
| 65 to 69 | 97 | 2.6% | 3.8% | 20 | 1.2% | 3.5% | +77 | +1.4pp |
| 70 to 74 | 52 | 1.4% | 3.3% | 13 | 0.8% | 2.4% | +39 | +0.6pp |
| 75 to 79 | 33 | 0.9% | 2.2% | 3 | 0.2% | 1.8% | +30 | +0.7pp |
| 80 to 84 | 14 | 0.4% | 1.5% | 3 | 0.2% | 1.2% | +11 | +0.2pp |
| 85 and over | 0 | 0.0% | 1.3% | 3 | 0.2% | 1.0% | -3 | -0.2pp |
| Total | 3,705 | 100.0% | 100.0% | 1,667 | 100.0% | 100.0% | +2,038 | 0.0pp |