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, 45 to 49 year olds was the largest age group among residents in Emu Plains, accounting for 7.3% (596 people). This share was higher than Penrith (C) (6.4%). Since 2016, the biggest change was in 10 to 14 year olds, which increased by 417 people and 1.5 percentage points.
Section overview
Age structure - Five year age groups
Emu Plains - Total persons (Usual residence)
This table summarises five year age groups for Emu Plains 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 Emu Plains, with comparison markers for Penrith (C).
0 to 4
2021 count
431
% of total
5.3%
Change from 2016
+0.4pp
431
5.3%
+0.4pp
5 to 9
2021 count
495
% of total
6.1%
Change from 2016
+1.2pp
495
6.1%
+1.2pp
10 to 14
2021 count
572
% of total
7.0%
Change from 2016
+1.5pp
572
7.0%
+1.5pp
15 to 19
2021 count
468
% of total
5.8%
Change from 2016
-0.5pp
468
5.8%
-0.5pp
20 to 24
2021 count
492
% of total
6.1%
Change from 2016
-1.0pp
492
6.1%
-1.0pp
25 to 29
2021 count
419
% of total
5.2%
Change from 2016
-2.1pp
419
5.2%
-2.1pp
30 to 34
2021 count
459
% of total
5.6%
Change from 2016
-2.5pp
459
5.6%
-2.5pp
35 to 39
2021 count
531
% of total
6.5%
Change from 2016
-0.2pp
531
6.5%
-0.2pp
40 to 44
2021 count
556
% of total
6.8%
Change from 2016
+0.7pp
556
6.8%
+0.7pp
45 to 49
2021 count
596
% of total
7.3%
Change from 2016
+0.1pp
596
7.3%
+0.1pp
50 to 54
2021 count
455
% of total
5.6%
Change from 2016
-2.0pp
455
5.6%
-2.0pp
55 to 59
2021 count
441
% of total
5.4%
Change from 2016
-1.7pp
441
5.4%
-1.7pp
60 to 64
2021 count
464
% of total
5.7%
Change from 2016
+0.5pp
464
5.7%
+0.5pp
65 to 69
2021 count
494
% of total
6.1%
Change from 2016
+1.5pp
494
6.1%
+1.5pp
70 to 74
2021 count
506
% of total
6.2%
Change from 2016
+2.4pp
506
6.2%
+2.4pp
75 to 79
2021 count
314
% of total
3.9%
Change from 2016
+0.6pp
314
3.9%
+0.6pp
80 to 84
2021 count
230
% of total
2.8%
Change from 2016
+0.7pp
230
2.8%
+0.7pp
85 and over
2021 count
215
% of total
2.6%
Change from 2016
+0.2pp
215
2.6%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+293
+0.4pp
5 to 9
+356
+1.2pp
10 to 14
+417
+1.5pp
15 to 19
+290
-0.5pp
20 to 24
+290
-1.0pp
25 to 29
+212
-2.1pp
30 to 34
+229
-2.5pp
35 to 39
+342
-0.2pp
40 to 44
+383
+0.7pp
45 to 49
+393
+0.1pp
50 to 54
+240
-2.0pp
55 to 59
+239
-1.7pp
60 to 64
+318
+0.5pp
65 to 69
+365
+1.5pp
70 to 74
+398
+2.4pp
75 to 79
+221
+0.6pp
80 to 84
+170
+0.7pp
85 and over
+148
+0.2pp
Data table
Five year age groups for Emu Plains. 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 | 431 | 5.3% | 7.2% | 138 | 4.9% | 7.4% | +293 | +0.4pp |
| 5 to 9 | 495 | 6.1% | 7.2% | 139 | 4.9% | 7.2% | +356 | +1.2pp |
| 10 to 14 | 572 | 7.0% | 6.8% | 155 | 5.5% | 6.5% | +417 | +1.5pp |
| 15 to 19 | 468 | 5.8% | 6.2% | 178 | 6.3% | 6.6% | +290 | -0.5pp |
| 20 to 24 | 492 | 6.1% | 6.8% | 202 | 7.1% | 7.2% | +290 | -1.0pp |
| 25 to 29 | 419 | 5.2% | 7.4% | 207 | 7.3% | 7.7% | +212 | -2.1pp |
| 30 to 34 | 459 | 5.6% | 7.7% | 230 | 8.1% | 7.8% | +229 | -2.5pp |
| 35 to 39 | 531 | 6.5% | 7.8% | 189 | 6.7% | 7.1% | +342 | -0.2pp |
| 40 to 44 | 556 | 6.8% | 6.8% | 173 | 6.1% | 6.9% | +383 | +0.7pp |
| 45 to 49 | 596 | 7.3% | 6.4% | 203 | 7.2% | 6.4% | +393 | +0.1pp |
| 50 to 54 | 455 | 5.6% | 5.9% | 215 | 7.6% | 6.2% | +240 | -2.0pp |
| 55 to 59 | 441 | 5.4% | 5.5% | 202 | 7.1% | 6.1% | +239 | -1.7pp |
| 60 to 64 | 464 | 5.7% | 5.2% | 146 | 5.2% | 5.2% | +318 | +0.5pp |
| 65 to 69 | 494 | 6.1% | 4.3% | 129 | 4.6% | 4.5% | +365 | +1.5pp |
| 70 to 74 | 506 | 6.2% | 3.7% | 108 | 3.8% | 2.9% | +398 | +2.4pp |
| 75 to 79 | 314 | 3.9% | 2.3% | 93 | 3.3% | 1.9% | +221 | +0.6pp |
| 80 to 84 | 230 | 2.8% | 1.4% | 60 | 2.1% | 1.2% | +170 | +0.7pp |
| 85 and over | 215 | 2.6% | 1.2% | 67 | 2.4% | 1.2% | +148 | +0.2pp |
| Total | 8,126 | 100.0% | 100.0% | 2,833 | 100.0% | 100.0% | +5,293 | 0.0pp |