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 Thornton (NSW), accounting for 9.1% (978 people). This share was higher than Maitland (C) (7.4%). Since 2016, the biggest change was in 30 to 34 year olds, which increased by 447 people and 2.5 percentage points.
Section overview
Age structure - Five year age groups
Thornton (NSW) - Total persons (Usual residence)
This table summarises five year age groups for Thornton (NSW) in 2021 for persons, with comparison against Maitland (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Thornton (NSW), with comparison markers for Maitland (C).
0 to 4
2021 count
824
% of total
7.7%
Change from 2016
+0.2pp
824
7.7%
+0.2pp
5 to 9
2021 count
754
% of total
7.1%
Change from 2016
-0.8pp
754
7.1%
-0.8pp
10 to 14
2021 count
729
% of total
6.8%
Change from 2016
-0.7pp
729
6.8%
-0.7pp
15 to 19
2021 count
671
% of total
6.3%
Change from 2016
-0.9pp
671
6.3%
-0.9pp
20 to 24
2021 count
856
% of total
8.0%
Change from 2016
+1.6pp
856
8.0%
+1.6pp
25 to 29
2021 count
909
% of total
8.5%
Change from 2016
+2.0pp
909
8.5%
+2.0pp
30 to 34
2021 count
978
% of total
9.1%
Change from 2016
+2.5pp
978
9.1%
+2.5pp
35 to 39
2021 count
741
% of total
6.9%
Change from 2016
+0.1pp
741
6.9%
+0.1pp
40 to 44
2021 count
650
% of total
6.1%
Change from 2016
-1.2pp
650
6.1%
-1.2pp
45 to 49
2021 count
635
% of total
5.9%
Change from 2016
-1.4pp
635
5.9%
-1.4pp
50 to 54
2021 count
665
% of total
6.2%
Change from 2016
-0.8pp
665
6.2%
-0.8pp
55 to 59
2021 count
606
% of total
5.7%
Change from 2016
-1.1pp
606
5.7%
-1.1pp
60 to 64
2021 count
574
% of total
5.4%
Change from 2016
-0.1pp
574
5.4%
-0.1pp
65 to 69
2021 count
427
% of total
4.0%
Change from 2016
-0.3pp
427
4.0%
-0.3pp
70 to 74
2021 count
316
% of total
3.0%
Change from 2016
+0.4pp
316
3.0%
+0.4pp
75 to 79
2021 count
182
% of total
1.7%
Change from 2016
0.0pp
182
1.7%
0.0pp
80 to 84
2021 count
110
% of total
1.0%
Change from 2016
+0.2pp
110
1.0%
+0.2pp
85 and over
2021 count
62
% of total
0.6%
Change from 2016
+0.1pp
62
0.6%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+218
+0.2pp
5 to 9
+114
-0.8pp
10 to 14
+128
-0.7pp
15 to 19
+89
-0.9pp
20 to 24
+338
+1.6pp
25 to 29
+381
+2.0pp
30 to 34
+447
+2.5pp
35 to 39
+192
+0.1pp
40 to 44
+62
-1.2pp
45 to 49
+46
-1.4pp
50 to 54
+102
-0.8pp
55 to 59
+57
-1.1pp
60 to 64
+129
-0.1pp
65 to 69
+81
-0.3pp
70 to 74
+109
+0.4pp
75 to 79
+43
0.0pp
80 to 84
+49
+0.2pp
85 and over
+19
+0.1pp
Data table
Five year age groups for Thornton (NSW). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Maitland (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Maitland (C)% | Count | % | Maitland (C)% | Count | pp | |
| 0 to 4 | 824 | 7.7% | 6.9% | 606 | 7.5% | 7.5% | +218 | +0.2pp |
| 5 to 9 | 754 | 7.1% | 7.3% | 640 | 7.9% | 7.6% | +114 | -0.8pp |
| 10 to 14 | 729 | 6.8% | 7.2% | 601 | 7.5% | 6.8% | +128 | -0.7pp |
| 15 to 19 | 671 | 6.3% | 6.2% | 582 | 7.2% | 6.4% | +89 | -0.9pp |
| 20 to 24 | 856 | 8.0% | 6.1% | 518 | 6.4% | 6.2% | +338 | +1.6pp |
| 25 to 29 | 909 | 8.5% | 6.9% | 528 | 6.5% | 6.8% | +381 | +2.0pp |
| 30 to 34 | 978 | 9.1% | 7.4% | 531 | 6.6% | 6.9% | +447 | +2.5pp |
| 35 to 39 | 741 | 6.9% | 7.0% | 549 | 6.8% | 6.5% | +192 | +0.1pp |
| 40 to 44 | 650 | 6.1% | 6.3% | 588 | 7.3% | 6.7% | +62 | -1.2pp |
| 45 to 49 | 635 | 5.9% | 6.1% | 589 | 7.3% | 6.6% | +46 | -1.4pp |
| 50 to 54 | 665 | 6.2% | 6.0% | 563 | 7.0% | 6.3% | +102 | -0.8pp |
| 55 to 59 | 606 | 5.7% | 5.6% | 549 | 6.8% | 6.1% | +57 | -1.1pp |
| 60 to 64 | 574 | 5.4% | 5.4% | 445 | 5.5% | 5.4% | +129 | -0.1pp |
| 65 to 69 | 427 | 4.0% | 4.8% | 346 | 4.3% | 4.9% | +81 | -0.3pp |
| 70 to 74 | 316 | 3.0% | 4.3% | 207 | 2.6% | 3.6% | +109 | +0.4pp |
| 75 to 79 | 182 | 1.7% | 3.0% | 139 | 1.7% | 2.5% | +43 | 0.0pp |
| 80 to 84 | 110 | 1.0% | 1.8% | 61 | 0.8% | 1.7% | +49 | +0.2pp |
| 85 and over | 62 | 0.6% | 1.7% | 43 | 0.5% | 1.7% | +19 | +0.1pp |
| Total | 10,690 | 100.0% | 100.0% | 8,062 | 100.0% | 100.0% | +2,628 | 0.0pp |