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 Brewarrina (A), accounting for 8.3% (113 people). This share was higher than Regional NSW (5.9%). Since 2016, the biggest change was in 45 to 49 year olds, which decreased by 68 people and 3.4 percentage points.
Section overview
Age structure - Five year age groups
Brewarrina (A) - Total persons (Usual residence)
This table summarises five year age groups for Brewarrina (A) in 2021 for persons, with comparison against Regional NSW and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Brewarrina (A), with comparison markers for Regional NSW.
0 to 4
2021 count
90
% of total
6.6%
Change from 2016
-1.2pp
90
6.6%
-1.2pp
5 to 9
2021 count
97
% of total
7.2%
Change from 2016
-1.0pp
97
7.2%
-1.0pp
10 to 14
2021 count
91
% of total
6.7%
Change from 2016
-0.1pp
91
6.7%
-0.1pp
15 to 19
2021 count
73
% of total
5.4%
Change from 2016
-0.1pp
73
5.4%
-0.1pp
20 to 24
2021 count
79
% of total
5.8%
Change from 2016
-2.3pp
79
5.8%
-2.3pp
25 to 29
2021 count
86
% of total
6.3%
Change from 2016
-2.6pp
86
6.3%
-2.6pp
30 to 34
2021 count
113
% of total
8.3%
Change from 2016
+3.6pp
113
8.3%
+3.6pp
35 to 39
2021 count
90
% of total
6.6%
Change from 2016
+1.9pp
90
6.6%
+1.9pp
40 to 44
2021 count
47
% of total
3.5%
Change from 2016
-1.2pp
47
3.5%
-1.2pp
45 to 49
2021 count
57
% of total
4.2%
Change from 2016
-3.4pp
57
4.2%
-3.4pp
50 to 54
2021 count
107
% of total
7.9%
Change from 2016
-0.3pp
107
7.9%
-0.3pp
55 to 59
2021 count
105
% of total
7.7%
Change from 2016
+0.4pp
105
7.7%
+0.4pp
60 to 64
2021 count
85
% of total
6.3%
Change from 2016
+1.2pp
85
6.3%
+1.2pp
65 to 69
2021 count
86
% of total
6.3%
Change from 2016
+1.9pp
86
6.3%
+1.9pp
70 to 74
2021 count
50
% of total
3.7%
Change from 2016
+0.9pp
50
3.7%
+0.9pp
75 to 79
2021 count
35
% of total
2.6%
Change from 2016
+1.4pp
35
2.6%
+1.4pp
80 to 84
2021 count
18
% of total
1.3%
Change from 2016
-0.2pp
18
1.3%
-0.2pp
85 and over
2021 count
19
% of total
1.4%
Change from 2016
+0.2pp
19
1.4%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-38
-1.2pp
5 to 9
-39
-1.0pp
10 to 14
-21
-0.1pp
15 to 19
-18
-0.1pp
20 to 24
-54
-2.3pp
25 to 29
-61
-2.6pp
30 to 34
+36
+3.6pp
35 to 39
+13
+1.9pp
40 to 44
-30
-1.2pp
45 to 49
-68
-3.4pp
50 to 54
-28
-0.3pp
55 to 59
-16
+0.4pp
60 to 64
+1
+1.2pp
65 to 69
+14
+1.9pp
70 to 74
+4
+0.9pp
75 to 79
+15
+1.4pp
80 to 84
-6
-0.2pp
85 and over
-1
+0.2pp
Data table
Five year age groups for Brewarrina (A). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NSW.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional NSW% | Count | % | Regional NSW% | Count | pp | |
| 0 to 4 | 90 | 6.6% | 5.5% | 128 | 7.8% | 5.8% | -38 | -1.2pp |
| 5 to 9 | 97 | 7.2% | 6.1% | 136 | 8.2% | 6.4% | -39 | -1.0pp |
| 10 to 14 | 91 | 6.7% | 6.3% | 112 | 6.8% | 6.1% | -21 | -0.1pp |
| 15 to 19 | 73 | 5.4% | 5.7% | 91 | 5.5% | 6.0% | -18 | -0.1pp |
| 20 to 24 | 79 | 5.8% | 5.4% | 133 | 8.1% | 5.6% | -54 | -2.3pp |
| 25 to 29 | 86 | 6.3% | 5.7% | 147 | 8.9% | 5.5% | -61 | -2.6pp |
| 30 to 34 | 113 | 8.3% | 5.9% | 77 | 4.7% | 5.5% | +36 | +3.6pp |
| 35 to 39 | 90 | 6.6% | 5.9% | 77 | 4.7% | 5.4% | +13 | +1.9pp |
| 40 to 44 | 47 | 3.5% | 5.6% | 77 | 4.7% | 6.1% | -30 | -1.2pp |
| 45 to 49 | 57 | 4.2% | 6.1% | 125 | 7.6% | 6.4% | -68 | -3.4pp |
| 50 to 54 | 107 | 7.9% | 6.2% | 135 | 8.2% | 6.8% | -28 | -0.3pp |
| 55 to 59 | 105 | 7.7% | 6.6% | 121 | 7.3% | 7.1% | -16 | +0.4pp |
| 60 to 64 | 85 | 6.3% | 6.9% | 84 | 5.1% | 6.7% | +1 | +1.2pp |
| 65 to 69 | 86 | 6.3% | 6.4% | 72 | 4.4% | 6.4% | +14 | +1.9pp |
| 70 to 74 | 50 | 3.7% | 5.9% | 46 | 2.8% | 5.0% | +4 | +0.9pp |
| 75 to 79 | 35 | 2.6% | 4.3% | 20 | 1.2% | 3.7% | +15 | +1.4pp |
| 80 to 84 | 18 | 1.3% | 2.9% | 24 | 1.5% | 2.6% | -6 | -0.2pp |
| 85 and over | 19 | 1.4% | 2.8% | 20 | 1.2% | 2.7% | -1 | +0.2pp |
| Total | 1,356 | 100.0% | 100.0% | 1,651 | 100.0% | 100.0% | -295 | 0.0pp |