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 Broome, accounting for 8.6% (327 people). This share was lower than Broome (S) (9.4%). Since 2016, the biggest change was in 35 to 39 year olds, which decreased by 68 people and 1.3 percentage points.
Section overview
Age structure - Five year age groups
Broome - Total persons (Usual residence)
This table summarises five year age groups for Broome in 2021 for persons, with comparison against Broome (S) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Broome, with comparison markers for Broome (S).
0 to 4
2021 count
214
% of total
5.6%
Change from 2016
-1.4pp
214
5.6%
-1.4pp
5 to 9
2021 count
263
% of total
6.9%
Change from 2016
+0.2pp
263
6.9%
+0.2pp
10 to 14
2021 count
275
% of total
7.2%
Change from 2016
+0.6pp
275
7.2%
+0.6pp
15 to 19
2021 count
234
% of total
6.2%
Change from 2016
+0.8pp
234
6.2%
+0.8pp
20 to 24
2021 count
203
% of total
5.3%
Change from 2016
+0.3pp
203
5.3%
+0.3pp
25 to 29
2021 count
313
% of total
8.2%
Change from 2016
+0.1pp
313
8.2%
+0.1pp
30 to 34
2021 count
327
% of total
8.6%
Change from 2016
-0.1pp
327
8.6%
-0.1pp
35 to 39
2021 count
271
% of total
7.1%
Change from 2016
-1.3pp
271
7.1%
-1.3pp
40 to 44
2021 count
281
% of total
7.4%
Change from 2016
+0.2pp
281
7.4%
+0.2pp
45 to 49
2021 count
243
% of total
6.4%
Change from 2016
-0.6pp
243
6.4%
-0.6pp
50 to 54
2021 count
311
% of total
8.2%
Change from 2016
+1.0pp
311
8.2%
+1.0pp
55 to 59
2021 count
260
% of total
6.8%
Change from 2016
-0.5pp
260
6.8%
-0.5pp
60 to 64
2021 count
212
% of total
5.6%
Change from 2016
-0.8pp
212
5.6%
-0.8pp
65 to 69
2021 count
170
% of total
4.5%
Change from 2016
+0.6pp
170
4.5%
+0.6pp
70 to 74
2021 count
94
% of total
2.5%
Change from 2016
+0.4pp
94
2.5%
+0.4pp
75 to 79
2021 count
68
% of total
1.8%
Change from 2016
+0.4pp
68
1.8%
+0.4pp
80 to 84
2021 count
28
% of total
0.7%
Change from 2016
-0.2pp
28
0.7%
-0.2pp
85 and over
2021 count
28
% of total
0.7%
Change from 2016
+0.1pp
28
0.7%
+0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-67
-1.4pp
5 to 9
-7
+0.2pp
10 to 14
+8
+0.6pp
15 to 19
+15
+0.8pp
20 to 24
0
+0.3pp
25 to 29
-16
+0.1pp
30 to 34
-25
-0.1pp
35 to 39
-68
-1.3pp
40 to 44
-9
+0.2pp
45 to 49
-40
-0.6pp
50 to 54
+19
+1.0pp
55 to 59
-37
-0.5pp
60 to 64
-47
-0.8pp
65 to 69
+12
+0.6pp
70 to 74
+9
+0.4pp
75 to 79
+13
+0.4pp
80 to 84
-9
-0.2pp
85 and over
+2
+0.1pp
Data table
Five year age groups for Broome. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Broome (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Broome (S)% | Count | % | Broome (S)% | Count | pp | |
| 0 to 4 | 214 | 5.6% | 7.3% | 281 | 7.0% | 8.1% | -67 | -1.4pp |
| 5 to 9 | 263 | 6.9% | 8.3% | 270 | 6.7% | 8.5% | -7 | +0.2pp |
| 10 to 14 | 275 | 7.2% | 8.0% | 267 | 6.6% | 7.3% | +8 | +0.6pp |
| 15 to 19 | 234 | 6.2% | 5.6% | 219 | 5.4% | 5.4% | +15 | +0.8pp |
| 20 to 24 | 203 | 5.3% | 5.4% | 203 | 5.0% | 5.5% | 0 | +0.3pp |
| 25 to 29 | 313 | 8.2% | 7.6% | 329 | 8.1% | 8.5% | -16 | +0.1pp |
| 30 to 34 | 327 | 8.6% | 9.4% | 352 | 8.7% | 9.2% | -25 | -0.1pp |
| 35 to 39 | 271 | 7.1% | 8.7% | 339 | 8.4% | 8.3% | -68 | -1.3pp |
| 40 to 44 | 281 | 7.4% | 7.3% | 290 | 7.2% | 7.7% | -9 | +0.2pp |
| 45 to 49 | 243 | 6.4% | 6.8% | 283 | 7.0% | 7.1% | -40 | -0.6pp |
| 50 to 54 | 311 | 8.2% | 7.0% | 292 | 7.2% | 6.5% | +19 | +1.0pp |
| 55 to 59 | 260 | 6.8% | 5.8% | 297 | 7.3% | 6.4% | -37 | -0.5pp |
| 60 to 64 | 212 | 5.6% | 5.0% | 259 | 6.4% | 4.9% | -47 | -0.8pp |
| 65 to 69 | 170 | 4.5% | 3.6% | 158 | 3.9% | 3.0% | +12 | +0.6pp |
| 70 to 74 | 94 | 2.5% | 2.0% | 85 | 2.1% | 1.8% | +9 | +0.4pp |
| 75 to 79 | 68 | 1.8% | 1.1% | 55 | 1.4% | 1.0% | +13 | +0.4pp |
| 80 to 84 | 28 | 0.7% | 0.6% | 37 | 0.9% | 0.5% | -9 | -0.2pp |
| 85 and over | 28 | 0.7% | 0.4% | 26 | 0.6% | 0.3% | +2 | +0.1pp |
| Total | 3,797 | 100.0% | 100.0% | 4,042 | 100.0% | 100.0% | -245 | 0.0pp |