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 Blacks Beach, accounting for 9.1% (379 people). This share was higher than Mackay (R) (6.8%). Since 2016, the biggest change was in 0 to 4 year olds, which decreased by 110 people and 3.5 percentage points.
Section overview
Age structure - Five year age groups
Blacks Beach - Total persons (Usual residence)
This table summarises five year age groups for Blacks Beach in 2021 for persons, with comparison against Mackay (R) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Blacks Beach, with comparison markers for Mackay (R).
0 to 4
2021 count
338
% of total
8.1%
Change from 2016
-3.5pp
338
8.1%
-3.5pp
5 to 9
2021 count
379
% of total
9.1%
Change from 2016
+0.7pp
379
9.1%
+0.7pp
10 to 14
2021 count
335
% of total
8.1%
Change from 2016
+0.8pp
335
8.1%
+0.8pp
15 to 19
2021 count
276
% of total
6.6%
Change from 2016
-1.1pp
276
6.6%
-1.1pp
20 to 24
2021 count
296
% of total
7.1%
Change from 2016
-2.6pp
296
7.1%
-2.6pp
25 to 29
2021 count
374
% of total
9.0%
Change from 2016
0.0pp
374
9.0%
0.0pp
30 to 34
2021 count
355
% of total
8.5%
Change from 2016
-0.4pp
355
8.5%
-0.4pp
35 to 39
2021 count
325
% of total
7.8%
Change from 2016
+0.7pp
325
7.8%
+0.7pp
40 to 44
2021 count
267
% of total
6.4%
Change from 2016
+0.7pp
267
6.4%
+0.7pp
45 to 49
2021 count
218
% of total
5.2%
Change from 2016
-1.4pp
218
5.2%
-1.4pp
50 to 54
2021 count
253
% of total
6.1%
Change from 2016
+0.1pp
253
6.1%
+0.1pp
55 to 59
2021 count
252
% of total
6.1%
Change from 2016
+1.5pp
252
6.1%
+1.5pp
60 to 64
2021 count
187
% of total
4.5%
Change from 2016
+1.1pp
187
4.5%
+1.1pp
65 to 69
2021 count
136
% of total
3.3%
Change from 2016
+1.4pp
136
3.3%
+1.4pp
70 to 74
2021 count
94
% of total
2.3%
Change from 2016
+1.2pp
94
2.3%
+1.2pp
75 to 79
2021 count
61
% of total
1.5%
Change from 2016
+0.9pp
61
1.5%
+0.9pp
80 to 84
2021 count
15
% of total
0.4%
Change from 2016
+0.1pp
15
0.4%
+0.1pp
85 and over
2021 count
7
% of total
0.2%
Change from 2016
-0.1pp
7
0.2%
-0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-110
-3.5pp
5 to 9
+56
+0.7pp
10 to 14
+53
+0.8pp
15 to 19
-20
-1.1pp
20 to 24
-79
-2.6pp
25 to 29
+25
0.0pp
30 to 34
+13
-0.4pp
35 to 39
+49
+0.7pp
40 to 44
+46
+0.7pp
45 to 49
-36
-1.4pp
50 to 54
+20
+0.1pp
55 to 59
+76
+1.5pp
60 to 64
+54
+1.1pp
65 to 69
+61
+1.4pp
70 to 74
+51
+1.2pp
75 to 79
+38
+0.9pp
80 to 84
+2
+0.1pp
85 and over
-3
-0.1pp
Data table
Five year age groups for Blacks Beach. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mackay (R)% | Count | % | Mackay (R)% | Count | pp | |
| 0 to 4 | 338 | 8.1% | 6.2% | 448 | 11.6% | 6.7% | -110 | -3.5pp |
| 5 to 9 | 379 | 9.1% | 6.8% | 323 | 8.4% | 7.1% | +56 | +0.7pp |
| 10 to 14 | 335 | 8.1% | 7.2% | 282 | 7.3% | 6.8% | +53 | +0.8pp |
| 15 to 19 | 276 | 6.6% | 6.1% | 296 | 7.7% | 6.3% | -20 | -1.1pp |
| 20 to 24 | 296 | 7.1% | 5.7% | 375 | 9.7% | 5.8% | -79 | -2.6pp |
| 25 to 29 | 374 | 9.0% | 6.3% | 349 | 9.0% | 6.5% | +25 | 0.0pp |
| 30 to 34 | 355 | 8.5% | 6.5% | 342 | 8.9% | 7.0% | +13 | -0.4pp |
| 35 to 39 | 325 | 7.8% | 7.0% | 276 | 7.1% | 6.4% | +49 | +0.7pp |
| 40 to 44 | 267 | 6.4% | 6.3% | 221 | 5.7% | 6.9% | +46 | +0.7pp |
| 45 to 49 | 218 | 5.2% | 6.6% | 254 | 6.6% | 7.4% | -36 | -1.4pp |
| 50 to 54 | 253 | 6.1% | 6.9% | 233 | 6.0% | 7.4% | +20 | +0.1pp |
| 55 to 59 | 252 | 6.1% | 6.9% | 176 | 4.6% | 6.9% | +76 | +1.5pp |
| 60 to 64 | 187 | 4.5% | 6.3% | 133 | 3.4% | 5.6% | +54 | +1.1pp |
| 65 to 69 | 136 | 3.3% | 5.1% | 75 | 1.9% | 4.5% | +61 | +1.4pp |
| 70 to 74 | 94 | 2.3% | 4.0% | 43 | 1.1% | 3.3% | +51 | +1.2pp |
| 75 to 79 | 61 | 1.5% | 2.8% | 23 | 0.6% | 2.3% | +38 | +0.9pp |
| 80 to 84 | 15 | 0.4% | 1.7% | 13 | 0.3% | 1.6% | +2 | +0.1pp |
| 85 and over | 7 | 0.2% | 1.6% | 10 | 0.3% | 1.4% | -3 | -0.1pp |
| Total | 4,153 | 100.0% | 100.0% | 3,861 | 100.0% | 100.0% | +292 | 0.0pp |