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, 35 to 39 year olds was the largest age group among residents in The Ponds, accounting for 12.5% (2,045 people). This share was higher than Blacktown (C) (9.2%). Since 2016, the biggest change was in 40 to 44 year olds, which increased by 908 people and 2.9 percentage points.
Section overview
Age structure - Five year age groups
The Ponds - Total persons (Usual residence)
This table summarises five year age groups for The Ponds in 2021 for persons, with comparison against Blacktown (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for The Ponds, with comparison markers for Blacktown (C).
0 to 4
2021 count
1,261
% of total
7.7%
Change from 2016
-4.0pp
1,261
7.7%
-4.0pp
5 to 9
2021 count
1,851
% of total
11.3%
Change from 2016
+0.7pp
1,851
11.3%
+0.7pp
10 to 14
2021 count
1,689
% of total
10.4%
Change from 2016
+3.4pp
1,689
10.4%
+3.4pp
15 to 19
2021 count
1,004
% of total
6.2%
Change from 2016
+1.2pp
1,004
6.2%
+1.2pp
20 to 24
2021 count
657
% of total
4.0%
Change from 2016
-0.3pp
657
4.0%
-0.3pp
25 to 29
2021 count
534
% of total
3.3%
Change from 2016
-2.5pp
534
3.3%
-2.5pp
30 to 34
2021 count
984
% of total
6.0%
Change from 2016
-5.8pp
984
6.0%
-5.8pp
35 to 39
2021 count
2,045
% of total
12.5%
Change from 2016
-0.4pp
2,045
12.5%
-0.4pp
40 to 44
2021 count
2,039
% of total
12.5%
Change from 2016
+2.9pp
2,039
12.5%
+2.9pp
45 to 49
2021 count
1,269
% of total
7.8%
Change from 2016
+2.0pp
1,269
7.8%
+2.0pp
50 to 54
2021 count
738
% of total
4.5%
Change from 2016
+0.2pp
738
4.5%
+0.2pp
55 to 59
2021 count
527
% of total
3.2%
Change from 2016
0.0pp
527
3.2%
0.0pp
60 to 64
2021 count
379
% of total
2.3%
Change from 2016
-0.8pp
379
2.3%
-0.8pp
65 to 69
2021 count
418
% of total
2.6%
Change from 2016
+0.6pp
418
2.6%
+0.6pp
70 to 74
2021 count
373
% of total
2.3%
Change from 2016
+0.9pp
373
2.3%
+0.9pp
75 to 79
2021 count
266
% of total
1.6%
Change from 2016
+0.9pp
266
1.6%
+0.9pp
80 to 84
2021 count
142
% of total
0.9%
Change from 2016
+0.5pp
142
0.9%
+0.5pp
85 and over
2021 count
146
% of total
0.9%
Change from 2016
+0.6pp
146
0.9%
+0.6pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-111
-4.0pp
5 to 9
+604
+0.7pp
10 to 14
+866
+3.4pp
15 to 19
+412
+1.2pp
20 to 24
+150
-0.3pp
25 to 29
-146
-2.5pp
30 to 34
-405
-5.8pp
35 to 39
+531
-0.4pp
40 to 44
+908
+2.9pp
45 to 49
+583
+2.0pp
50 to 54
+229
+0.2pp
55 to 59
+150
0.0pp
60 to 64
+15
-0.8pp
65 to 69
+181
+0.6pp
70 to 74
+206
+0.9pp
75 to 79
+183
+0.9pp
80 to 84
+99
+0.5pp
85 and over
+116
+0.6pp
Data table
Five year age groups for The Ponds. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Blacktown (C)% | Count | % | Blacktown (C)% | Count | pp | |
| 0 to 4 | 1,261 | 7.7% | 7.5% | 1,372 | 11.7% | 8.0% | -111 | -4.0pp |
| 5 to 9 | 1,851 | 11.3% | 7.9% | 1,247 | 10.6% | 7.9% | +604 | +0.7pp |
| 10 to 14 | 1,689 | 10.4% | 7.3% | 823 | 7.0% | 6.9% | +866 | +3.4pp |
| 15 to 19 | 1,004 | 6.2% | 6.1% | 592 | 5.0% | 6.9% | +412 | +1.2pp |
| 20 to 24 | 657 | 4.0% | 6.7% | 507 | 4.3% | 6.8% | +150 | -0.3pp |
| 25 to 29 | 534 | 3.3% | 7.0% | 680 | 5.8% | 7.2% | -146 | -2.5pp |
| 30 to 34 | 984 | 6.0% | 7.9% | 1,389 | 11.8% | 8.3% | -405 | -5.8pp |
| 35 to 39 | 2,045 | 12.5% | 9.2% | 1,514 | 12.9% | 8.1% | +531 | -0.4pp |
| 40 to 44 | 2,039 | 12.5% | 7.8% | 1,131 | 9.6% | 7.2% | +908 | +2.9pp |
| 45 to 49 | 1,269 | 7.8% | 6.4% | 686 | 5.8% | 6.5% | +583 | +2.0pp |
| 50 to 54 | 738 | 4.5% | 5.6% | 509 | 4.3% | 6.0% | +229 | +0.2pp |
| 55 to 59 | 527 | 3.2% | 5.1% | 377 | 3.2% | 5.4% | +150 | 0.0pp |
| 60 to 64 | 379 | 2.3% | 4.5% | 364 | 3.1% | 4.6% | +15 | -0.8pp |
| 65 to 69 | 418 | 2.6% | 3.7% | 237 | 2.0% | 3.8% | +181 | +0.6pp |
| 70 to 74 | 373 | 2.3% | 3.1% | 167 | 1.4% | 2.5% | +206 | +0.9pp |
| 75 to 79 | 266 | 1.6% | 1.9% | 83 | 0.7% | 1.7% | +183 | +0.9pp |
| 80 to 84 | 142 | 0.9% | 1.2% | 43 | 0.4% | 1.1% | +99 | +0.5pp |
| 85 and over | 146 | 0.9% | 1.1% | 30 | 0.3% | 1.1% | +116 | +0.6pp |
| Total | 16,315 | 100.0% | 100.0% | 11,731 | 100.0% | 100.0% | +4,584 | 0.0pp |