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, 15 to 19 year olds was the largest age group among residents in Smithfield (Qld), accounting for 8.1% (537 people). This share was higher than Cairns (R) (6.2%). Since 2016, the biggest change was in 15 to 19 year olds, which increased by 222 people and 2.2 percentage points.
Section overview
Age structure - Five year age groups
Smithfield (Qld) - Total persons (Usual residence)
This table summarises five year age groups for Smithfield (Qld) in 2021 for persons, with comparison against Cairns (R) and change since 2016.
Chart view
Age structure - Five year age groups snapshot
2021 distribution by category for Smithfield (Qld), with comparison markers for Cairns (R).
0 to 4
2021 count
436
% of total
6.5%
Change from 2016
+0.6pp
436
6.5%
+0.6pp
5 to 9
2021 count
467
% of total
7.0%
Change from 2016
+0.2pp
467
7.0%
+0.2pp
10 to 14
2021 count
406
% of total
6.1%
Change from 2016
-0.3pp
406
6.1%
-0.3pp
15 to 19
2021 count
537
% of total
8.1%
Change from 2016
+2.2pp
537
8.1%
+2.2pp
20 to 24
2021 count
528
% of total
7.9%
Change from 2016
+0.3pp
528
7.9%
+0.3pp
25 to 29
2021 count
461
% of total
6.9%
Change from 2016
-1.0pp
461
6.9%
-1.0pp
30 to 34
2021 count
522
% of total
7.8%
Change from 2016
-0.1pp
522
7.8%
-0.1pp
35 to 39
2021 count
519
% of total
7.8%
Change from 2016
+1.1pp
519
7.8%
+1.1pp
40 to 44
2021 count
476
% of total
7.1%
Change from 2016
-1.0pp
476
7.1%
-1.0pp
45 to 49
2021 count
471
% of total
7.1%
Change from 2016
-0.7pp
471
7.1%
-0.7pp
50 to 54
2021 count
401
% of total
6.0%
Change from 2016
-0.2pp
401
6.0%
-0.2pp
55 to 59
2021 count
327
% of total
4.9%
Change from 2016
-1.0pp
327
4.9%
-1.0pp
60 to 64
2021 count
333
% of total
5.0%
Change from 2016
+0.5pp
333
5.0%
+0.5pp
65 to 69
2021 count
274
% of total
4.1%
Change from 2016
-0.3pp
274
4.1%
-0.3pp
70 to 74
2021 count
213
% of total
3.2%
Change from 2016
-0.2pp
213
3.2%
-0.2pp
75 to 79
2021 count
159
% of total
2.4%
Change from 2016
+0.2pp
159
2.4%
+0.2pp
80 to 84
2021 count
81
% of total
1.2%
Change from 2016
+0.1pp
81
1.2%
+0.1pp
85 and over
2021 count
59
% of total
0.9%
Change from 2016
-0.6pp
59
0.9%
-0.6pp
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+122
+0.6pp
5 to 9
+105
+0.2pp
10 to 14
+65
-0.3pp
15 to 19
+222
+2.2pp
20 to 24
+125
+0.3pp
25 to 29
+42
-1.0pp
30 to 34
+100
-0.1pp
35 to 39
+163
+1.1pp
40 to 44
+45
-1.0pp
45 to 49
+58
-0.7pp
50 to 54
+71
-0.2pp
55 to 59
+11
-1.0pp
60 to 64
+96
+0.5pp
65 to 69
+39
-0.3pp
70 to 74
+31
-0.2pp
75 to 79
+43
+0.2pp
80 to 84
+23
+0.1pp
85 and over
-21
-0.6pp
Data table
Five year age groups for Smithfield (Qld). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Cairns (R).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Cairns (R)% | Count | % | Cairns (R)% | Count | pp | |
| 0 to 4 | 436 | 6.5% | 5.5% | 314 | 5.9% | 6.5% | +122 | +0.6pp |
| 5 to 9 | 467 | 7.0% | 6.5% | 362 | 6.8% | 7.1% | +105 | +0.2pp |
| 10 to 14 | 406 | 6.1% | 7.0% | 341 | 6.4% | 6.8% | +65 | -0.3pp |
| 15 to 19 | 537 | 8.1% | 6.2% | 315 | 5.9% | 6.3% | +222 | +2.2pp |
| 20 to 24 | 528 | 7.9% | 5.5% | 403 | 7.6% | 5.8% | +125 | +0.3pp |
| 25 to 29 | 461 | 6.9% | 6.4% | 419 | 7.9% | 6.6% | +42 | -1.0pp |
| 30 to 34 | 522 | 7.8% | 6.8% | 422 | 7.9% | 7.0% | +100 | -0.1pp |
| 35 to 39 | 519 | 7.8% | 6.8% | 356 | 6.7% | 7.0% | +163 | +1.1pp |
| 40 to 44 | 476 | 7.1% | 6.9% | 431 | 8.1% | 7.5% | +45 | -1.0pp |
| 45 to 49 | 471 | 7.1% | 7.2% | 413 | 7.8% | 7.5% | +58 | -0.7pp |
| 50 to 54 | 401 | 6.0% | 7.0% | 330 | 6.2% | 7.1% | +71 | -0.2pp |
| 55 to 59 | 327 | 4.9% | 6.6% | 316 | 5.9% | 6.5% | +11 | -1.0pp |
| 60 to 64 | 333 | 5.0% | 6.0% | 237 | 4.5% | 5.6% | +96 | +0.5pp |
| 65 to 69 | 274 | 4.1% | 5.2% | 235 | 4.4% | 4.8% | +39 | -0.3pp |
| 70 to 74 | 213 | 3.2% | 4.4% | 182 | 3.4% | 3.2% | +31 | -0.2pp |
| 75 to 79 | 159 | 2.4% | 2.8% | 116 | 2.2% | 2.1% | +43 | +0.2pp |
| 80 to 84 | 81 | 1.2% | 1.6% | 58 | 1.1% | 1.3% | +23 | +0.1pp |
| 85 and over | 59 | 0.9% | 1.5% | 80 | 1.5% | 1.3% | -21 | -0.6pp |
| Total | 6,664 | 100.0% | 100.0% | 5,313 | 100.0% | 100.0% | +1,351 | 0.0pp |