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, 15 to 19 year olds was the largest age group among residents in Mount Vernon, accounting for 9.1% (113 people). This share was higher than Penrith (C) (6.2%). Since 2016, the biggest change was in 15 to 19 year olds, which increased by 113 people and 9.1 percentage points.
Section overview
Age structure - Five year age groups
Mount Vernon - Total persons (Usual residence)
This table summarises five year age groups for Mount Vernon in 2021 for persons, with comparison against Penrith (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Mount Vernon, with comparison markers for Penrith (C).
0 to 4
2021 count
54
% of total
4.4%
Change from 2016
-0.2pp
54
4.4%
-0.2pp
5 to 9
2021 count
69
% of total
5.6%
Change from 2016
+1.0pp
69
5.6%
+1.0pp
10 to 14
2021 count
108
% of total
8.7%
Change from 2016
+8.7pp
108
8.7%
+8.7pp
15 to 19
2021 count
113
% of total
9.1%
Change from 2016
+9.1pp
113
9.1%
+9.1pp
20 to 24
2021 count
105
% of total
8.5%
Change from 2016
+8.5pp
105
8.5%
+8.5pp
25 to 29
2021 count
72
% of total
5.8%
Change from 2016
+5.8pp
72
5.8%
+5.8pp
30 to 34
2021 count
51
% of total
4.1%
Change from 2016
-6.7pp
51
4.1%
-6.7pp
35 to 39
2021 count
59
% of total
4.8%
Change from 2016
+4.8pp
59
4.8%
+4.8pp
40 to 44
2021 count
50
% of total
4.0%
Change from 2016
+4.0pp
50
4.0%
+4.0pp
45 to 49
2021 count
99
% of total
8.0%
Change from 2016
+8.0pp
99
8.0%
+8.0pp
50 to 54
2021 count
102
% of total
8.3%
Change from 2016
+3.7pp
102
8.3%
+3.7pp
55 to 59
2021 count
91
% of total
7.4%
Change from 2016
+7.4pp
91
7.4%
+7.4pp
60 to 64
2021 count
82
% of total
6.6%
Change from 2016
-13.4pp
82
6.6%
-13.4pp
65 to 69
2021 count
63
% of total
5.1%
Change from 2016
-1.1pp
63
5.1%
-1.1pp
70 to 74
2021 count
56
% of total
4.5%
Change from 2016
-0.1pp
56
4.5%
-0.1pp
75 to 79
2021 count
31
% of total
2.5%
Change from 2016
+2.5pp
31
2.5%
+2.5pp
80 to 84
2021 count
27
% of total
2.2%
Change from 2016
+2.2pp
27
2.2%
+2.2pp
85 and over
2021 count
22
% of total
1.8%
Change from 2016
+1.8pp
22
1.8%
+1.8pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+51
-0.2pp
5 to 9
+66
+1.0pp
10 to 14
+108
+8.7pp
15 to 19
+113
+9.1pp
20 to 24
+105
+8.5pp
25 to 29
+72
+5.8pp
30 to 34
+44
-6.7pp
35 to 39
+59
+4.8pp
40 to 44
+50
+4.0pp
45 to 49
+99
+8.0pp
50 to 54
+99
+3.7pp
55 to 59
+91
+7.4pp
60 to 64
+69
-13.4pp
65 to 69
+59
-1.1pp
70 to 74
+53
-0.1pp
75 to 79
+31
+2.5pp
80 to 84
+27
+2.2pp
85 and over
+22
+1.8pp
Data table
Five year age groups for Mount Vernon. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Penrith (C)% | Count | % | Penrith (C)% | Count | pp | |
| 0 to 4 | 54 | 4.4% | 7.2% | 3 | 4.6% | 7.4% | +51 | -0.2pp |
| 5 to 9 | 69 | 5.6% | 7.2% | 3 | 4.6% | 7.2% | +66 | +1.0pp |
| 10 to 14 | 108 | 8.7% | 6.8% | 0 | 0.0% | 6.5% | +108 | +8.7pp |
| 15 to 19 | 113 | 9.1% | 6.2% | 0 | 0.0% | 6.6% | +113 | +9.1pp |
| 20 to 24 | 105 | 8.5% | 6.8% | 0 | 0.0% | 7.2% | +105 | +8.5pp |
| 25 to 29 | 72 | 5.8% | 7.4% | 0 | 0.0% | 7.7% | +72 | +5.8pp |
| 30 to 34 | 51 | 4.1% | 7.7% | 7 | 10.8% | 7.8% | +44 | -6.7pp |
| 35 to 39 | 59 | 4.8% | 7.8% | 0 | 0.0% | 7.1% | +59 | +4.8pp |
| 40 to 44 | 50 | 4.0% | 6.8% | 0 | 0.0% | 6.9% | +50 | +4.0pp |
| 45 to 49 | 99 | 8.0% | 6.4% | 0 | 0.0% | 6.4% | +99 | +8.0pp |
| 50 to 54 | 102 | 8.3% | 5.9% | 3 | 4.6% | 6.2% | +99 | +3.7pp |
| 55 to 59 | 91 | 7.4% | 5.5% | 0 | 0.0% | 6.1% | +91 | +7.4pp |
| 60 to 64 | 82 | 6.6% | 5.2% | 13 | 20.0% | 5.2% | +69 | -13.4pp |
| 65 to 69 | 63 | 5.1% | 4.3% | 4 | 6.2% | 4.5% | +59 | -1.1pp |
| 70 to 74 | 56 | 4.5% | 3.7% | 3 | 4.6% | 2.9% | +53 | -0.1pp |
| 75 to 79 | 31 | 2.5% | 2.3% | 0 | 0.0% | 1.9% | +31 | +2.5pp |
| 80 to 84 | 27 | 2.2% | 1.4% | 0 | 0.0% | 1.2% | +27 | +2.2pp |
| 85 and over | 22 | 1.8% | 1.2% | 0 | 0.0% | 1.2% | +22 | +1.8pp |
| Total | 1,235 | 100.0% | 100.0% | 65 | 100.0% | 100.0% | +1,170 | 0.0pp |