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, 60 to 64 year olds was the largest age group among residents in Port Lincoln (C), accounting for 6.7% (960 people). This share was lower than Regional SA (7.7%). Since 2016, the biggest change was in 35 to 39 year olds, which increased by 185 people and 1.1 percentage points.
Section overview
Age structure - Five year age groups
Port Lincoln (C) - Total persons (Usual residence)
This table summarises five year age groups for Port Lincoln (C) in 2021 for persons, with comparison against Regional SA and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Port Lincoln (C), with comparison markers for Regional SA.
0 to 4
2021 count
829
% of total
5.8%
Change from 2016
-0.8pp
829
5.8%
-0.8pp
5 to 9
2021 count
877
% of total
6.1%
Change from 2016
-0.5pp
877
6.1%
-0.5pp
10 to 14
2021 count
892
% of total
6.2%
Change from 2016
0.0pp
892
6.2%
0.0pp
15 to 19
2021 count
847
% of total
5.9%
Change from 2016
-0.2pp
847
5.9%
-0.2pp
20 to 24
2021 count
801
% of total
5.6%
Change from 2016
+0.1pp
801
5.6%
+0.1pp
25 to 29
2021 count
862
% of total
6.0%
Change from 2016
0.0pp
862
6.0%
0.0pp
30 to 34
2021 count
938
% of total
6.5%
Change from 2016
-0.1pp
938
6.5%
-0.1pp
35 to 39
2021 count
927
% of total
6.4%
Change from 2016
+1.1pp
927
6.4%
+1.1pp
40 to 44
2021 count
702
% of total
4.9%
Change from 2016
-1.3pp
702
4.9%
-1.3pp
45 to 49
2021 count
870
% of total
6.0%
Change from 2016
-0.6pp
870
6.0%
-0.6pp
50 to 54
2021 count
913
% of total
6.3%
Change from 2016
-0.1pp
913
6.3%
-0.1pp
55 to 59
2021 count
941
% of total
6.5%
Change from 2016
-0.6pp
941
6.5%
-0.6pp
60 to 64
2021 count
960
% of total
6.7%
Change from 2016
+0.6pp
960
6.7%
+0.6pp
65 to 69
2021 count
881
% of total
6.1%
Change from 2016
+0.5pp
881
6.1%
+0.5pp
70 to 74
2021 count
766
% of total
5.3%
Change from 2016
+0.7pp
766
5.3%
+0.7pp
75 to 79
2021 count
582
% of total
4.0%
Change from 2016
+0.6pp
582
4.0%
+0.6pp
80 to 84
2021 count
381
% of total
2.6%
Change from 2016
+0.1pp
381
2.6%
+0.1pp
85 and over
2021 count
432
% of total
3.0%
Change from 2016
+0.2pp
432
3.0%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-94
-0.8pp
5 to 9
-54
-0.5pp
10 to 14
+19
0.0pp
15 to 19
-4
-0.2pp
20 to 24
+26
+0.1pp
25 to 29
+13
0.0pp
30 to 34
+16
-0.1pp
35 to 39
+185
+1.1pp
40 to 44
-163
-1.3pp
45 to 49
-61
-0.6pp
50 to 54
+19
-0.1pp
55 to 59
-55
-0.6pp
60 to 64
+98
+0.6pp
65 to 69
+90
+0.5pp
70 to 74
+120
+0.7pp
75 to 79
+106
+0.6pp
80 to 84
+28
+0.1pp
85 and over
+41
+0.2pp
Data table
Five year age groups for Port Lincoln (C). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional SA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional SA% | Count | % | Regional SA% | Count | pp | |
| 0 to 4 | 829 | 5.8% | 4.9% | 923 | 6.6% | 5.5% | -94 | -0.8pp |
| 5 to 9 | 877 | 6.1% | 5.7% | 931 | 6.6% | 6.1% | -54 | -0.5pp |
| 10 to 14 | 892 | 6.2% | 6.1% | 873 | 6.2% | 6.0% | +19 | 0.0pp |
| 15 to 19 | 847 | 5.9% | 5.3% | 851 | 6.1% | 5.6% | -4 | -0.2pp |
| 20 to 24 | 801 | 5.6% | 4.6% | 775 | 5.5% | 4.8% | +26 | +0.1pp |
| 25 to 29 | 862 | 6.0% | 5.1% | 849 | 6.0% | 5.1% | +13 | 0.0pp |
| 30 to 34 | 938 | 6.5% | 5.4% | 922 | 6.6% | 5.3% | +16 | -0.1pp |
| 35 to 39 | 927 | 6.4% | 5.4% | 742 | 5.3% | 5.2% | +185 | +1.1pp |
| 40 to 44 | 702 | 4.9% | 5.2% | 865 | 6.2% | 5.9% | -163 | -1.3pp |
| 45 to 49 | 870 | 6.0% | 5.8% | 931 | 6.6% | 6.7% | -61 | -0.6pp |
| 50 to 54 | 913 | 6.3% | 6.7% | 894 | 6.4% | 7.1% | +19 | -0.1pp |
| 55 to 59 | 941 | 6.5% | 7.2% | 996 | 7.1% | 7.5% | -55 | -0.6pp |
| 60 to 64 | 960 | 6.7% | 7.7% | 862 | 6.1% | 7.3% | +98 | +0.6pp |
| 65 to 69 | 881 | 6.1% | 7.4% | 791 | 5.6% | 7.1% | +90 | +0.5pp |
| 70 to 74 | 766 | 5.3% | 6.8% | 646 | 4.6% | 5.5% | +120 | +0.7pp |
| 75 to 79 | 582 | 4.0% | 4.8% | 476 | 3.4% | 3.9% | +106 | +0.6pp |
| 80 to 84 | 381 | 2.6% | 3.1% | 353 | 2.5% | 2.6% | +28 | +0.1pp |
| 85 and over | 432 | 3.0% | 2.8% | 391 | 2.8% | 2.7% | +41 | +0.2pp |
| Total | 14,404 | 100.0% | 100.0% | 14,064 | 100.0% | 100.0% | +340 | 0.0pp |