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, 5 to 9 year olds was the largest age group among residents in Kirkwood, accounting for 10.4% (262 people). This share was higher than Gladstone (R) (7.4%). Since 2016, the biggest change was in 5 to 9 year olds, which increased by 262 people and 10.4 percentage points.
Section overview
Age structure - Five year age groups
Kirkwood - Total persons (Usual residence)
This table summarises five year age groups for Kirkwood in 2021 for persons, with comparison against Gladstone (R) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Kirkwood, with comparison markers for Gladstone (R).
0 to 4
2021 count
261
% of total
10.4%
Change from 2016
+10.4pp
261
10.4%
+10.4pp
5 to 9
2021 count
262
% of total
10.4%
Change from 2016
+10.4pp
262
10.4%
+10.4pp
10 to 14
2021 count
237
% of total
9.4%
Change from 2016
+9.4pp
237
9.4%
+9.4pp
15 to 19
2021 count
181
% of total
7.2%
Change from 2016
+7.2pp
181
7.2%
+7.2pp
20 to 24
2021 count
146
% of total
5.8%
Change from 2016
+5.8pp
146
5.8%
+5.8pp
25 to 29
2021 count
233
% of total
9.3%
Change from 2016
+9.3pp
233
9.3%
+9.3pp
30 to 34
2021 count
256
% of total
10.2%
Change from 2016
+10.2pp
256
10.2%
+10.2pp
35 to 39
2021 count
242
% of total
9.6%
Change from 2016
+9.6pp
242
9.6%
+9.6pp
40 to 44
2021 count
184
% of total
7.3%
Change from 2016
+7.3pp
184
7.3%
+7.3pp
45 to 49
2021 count
138
% of total
5.5%
Change from 2016
+5.5pp
138
5.5%
+5.5pp
50 to 54
2021 count
116
% of total
4.6%
Change from 2016
+4.6pp
116
4.6%
+4.6pp
55 to 59
2021 count
93
% of total
3.7%
Change from 2016
+3.7pp
93
3.7%
+3.7pp
60 to 64
2021 count
79
% of total
3.1%
Change from 2016
+3.1pp
79
3.1%
+3.1pp
65 to 69
2021 count
32
% of total
1.3%
Change from 2016
+1.3pp
32
1.3%
+1.3pp
70 to 74
2021 count
32
% of total
1.3%
Change from 2016
+1.3pp
32
1.3%
+1.3pp
75 to 79
2021 count
8
% of total
0.3%
Change from 2016
+0.3pp
8
0.3%
+0.3pp
80 to 84
2021 count
3
% of total
0.1%
Change from 2016
+0.1pp
3
0.1%
+0.1pp
85 and over
2021 count
4
% of total
0.2%
Change from 2016
+0.2pp
4
0.2%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+261
+10.4pp
5 to 9
+262
+10.4pp
10 to 14
+237
+9.4pp
15 to 19
+181
+7.2pp
20 to 24
+146
+5.8pp
25 to 29
+233
+9.3pp
30 to 34
+256
+10.2pp
35 to 39
+242
+9.6pp
40 to 44
+184
+7.3pp
45 to 49
+138
+5.5pp
50 to 54
+116
+4.6pp
55 to 59
+93
+3.7pp
60 to 64
+79
+3.1pp
65 to 69
+32
+1.3pp
70 to 74
+32
+1.3pp
75 to 79
+8
+0.3pp
80 to 84
+3
+0.1pp
85 and over
+4
+0.2pp
Data table
Five year age groups for Kirkwood. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Gladstone (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Gladstone (R)% | Count | % | Gladstone (R)% | Count | pp | |
| 0 to 4 | 261 | 10.4% | 6.4% | 0 | 0.0% | 7.5% | +261 | +10.4pp |
| 5 to 9 | 262 | 10.4% | 7.4% | 0 | 0.0% | 7.9% | +262 | +10.4pp |
| 10 to 14 | 237 | 9.4% | 7.7% | 0 | 0.0% | 7.3% | +237 | +9.4pp |
| 15 to 19 | 181 | 7.2% | 6.3% | 0 | 0.0% | 6.2% | +181 | +7.2pp |
| 20 to 24 | 146 | 5.8% | 5.0% | 0 | 0.0% | 5.9% | +146 | +5.8pp |
| 25 to 29 | 233 | 9.3% | 5.9% | 0 | 0.0% | 6.7% | +233 | +9.3pp |
| 30 to 34 | 256 | 10.2% | 6.4% | 0 | 0.0% | 7.1% | +256 | +10.2pp |
| 35 to 39 | 242 | 9.6% | 6.7% | 0 | 0.0% | 6.8% | +242 | +9.6pp |
| 40 to 44 | 184 | 7.3% | 6.4% | 0 | 0.0% | 7.6% | +184 | +7.3pp |
| 45 to 49 | 138 | 5.5% | 7.1% | 0 | 0.0% | 7.6% | +138 | +5.5pp |
| 50 to 54 | 116 | 4.6% | 7.2% | 0 | 0.0% | 7.3% | +116 | +4.6pp |
| 55 to 59 | 93 | 3.7% | 7.1% | 0 | 0.0% | 6.7% | +93 | +3.7pp |
| 60 to 64 | 79 | 3.1% | 6.5% | 0 | 0.0% | 5.1% | +79 | +3.1pp |
| 65 to 69 | 32 | 1.3% | 5.0% | 0 | 0.0% | 4.0% | +32 | +1.3pp |
| 70 to 74 | 32 | 1.3% | 4.0% | 0 | 0.0% | 2.7% | +32 | +1.3pp |
| 75 to 79 | 8 | 0.3% | 2.4% | 0 | 0.0% | 1.7% | +8 | +0.3pp |
| 80 to 84 | 3 | 0.1% | 1.4% | 0 | 0.0% | 1.0% | +3 | +0.1pp |
| 85 and over | 4 | 0.2% | 1.1% | 0 | 0.0% | 0.8% | +4 | +0.2pp |
| Total | 2,513 | 100.0% | 100.0% | 14 | 100.0% | 100.0% | +2,499 | 0.0pp |