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 Fairfield East, accounting for 7.7% (402 people). This share was higher than Fairfield (C) (6.9%). Since 2016, the biggest change was in 5 to 9 year olds, which decreased by 61 people and 1 percentage point.
Section overview
Age structure - Five year age groups
Fairfield East - Total persons (Usual residence)
This table summarises five year age groups for Fairfield East in 2021 for persons, with comparison against Fairfield (C) and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for Fairfield East, with comparison markers for Fairfield (C).
0 to 4
2021 count
304
% of total
5.8%
Change from 2016
-0.6pp
304
5.8%
-0.6pp
5 to 9
2021 count
325
% of total
6.3%
Change from 2016
-1.0pp
325
6.3%
-1.0pp
10 to 14
2021 count
393
% of total
7.6%
Change from 2016
+0.3pp
393
7.6%
+0.3pp
15 to 19
2021 count
402
% of total
7.7%
Change from 2016
+0.5pp
402
7.7%
+0.5pp
20 to 24
2021 count
364
% of total
7.0%
Change from 2016
-0.4pp
364
7.0%
-0.4pp
25 to 29
2021 count
299
% of total
5.8%
Change from 2016
-1.0pp
299
5.8%
-1.0pp
30 to 34
2021 count
348
% of total
6.7%
Change from 2016
-0.1pp
348
6.7%
-0.1pp
35 to 39
2021 count
316
% of total
6.1%
Change from 2016
0.0pp
316
6.1%
0.0pp
40 to 44
2021 count
325
% of total
6.3%
Change from 2016
+0.1pp
325
6.3%
+0.1pp
45 to 49
2021 count
337
% of total
6.5%
Change from 2016
-0.4pp
337
6.5%
-0.4pp
50 to 54
2021 count
366
% of total
7.0%
Change from 2016
+0.5pp
366
7.0%
+0.5pp
55 to 59
2021 count
302
% of total
5.8%
Change from 2016
+0.1pp
302
5.8%
+0.1pp
60 to 64
2021 count
300
% of total
5.8%
Change from 2016
+0.5pp
300
5.8%
+0.5pp
65 to 69
2021 count
260
% of total
5.0%
Change from 2016
+0.9pp
260
5.0%
+0.9pp
70 to 74
2021 count
205
% of total
3.9%
Change from 2016
+0.7pp
205
3.9%
+0.7pp
75 to 79
2021 count
145
% of total
2.8%
Change from 2016
+0.4pp
145
2.8%
+0.4pp
80 to 84
2021 count
88
% of total
1.7%
Change from 2016
-0.2pp
88
1.7%
-0.2pp
85 and over
2021 count
120
% of total
2.3%
Change from 2016
+0.2pp
120
2.3%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
-31
-0.6pp
5 to 9
-61
-1.0pp
10 to 14
+9
+0.3pp
15 to 19
+24
+0.5pp
20 to 24
-24
-0.4pp
25 to 29
-60
-1.0pp
30 to 34
-12
-0.1pp
35 to 39
-5
0.0pp
40 to 44
-4
+0.1pp
45 to 49
-25
-0.4pp
50 to 54
+21
+0.5pp
55 to 59
-1
+0.1pp
60 to 64
+23
+0.5pp
65 to 69
+45
+0.9pp
70 to 74
+34
+0.7pp
75 to 79
+16
+0.4pp
80 to 84
-13
-0.2pp
85 and over
+8
+0.2pp
Data table
Five year age groups for Fairfield East. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Fairfield (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Fairfield (C)% | Count | % | Fairfield (C)% | Count | pp | |
| 0 to 4 | 304 | 5.8% | 5.2% | 335 | 6.4% | 6.1% | -31 | -0.6pp |
| 5 to 9 | 325 | 6.3% | 6.1% | 386 | 7.3% | 6.4% | -61 | -1.0pp |
| 10 to 14 | 393 | 7.6% | 6.6% | 384 | 7.3% | 6.6% | +9 | +0.3pp |
| 15 to 19 | 402 | 7.7% | 6.9% | 378 | 7.2% | 7.1% | +24 | +0.5pp |
| 20 to 24 | 364 | 7.0% | 7.0% | 388 | 7.4% | 7.7% | -24 | -0.4pp |
| 25 to 29 | 299 | 5.8% | 6.8% | 359 | 6.8% | 7.1% | -60 | -1.0pp |
| 30 to 34 | 348 | 6.7% | 6.2% | 360 | 6.8% | 6.6% | -12 | -0.1pp |
| 35 to 39 | 316 | 6.1% | 6.1% | 321 | 6.1% | 6.0% | -5 | 0.0pp |
| 40 to 44 | 325 | 6.3% | 5.9% | 329 | 6.2% | 6.4% | -4 | +0.1pp |
| 45 to 49 | 337 | 6.5% | 6.4% | 362 | 6.9% | 6.8% | -25 | -0.4pp |
| 50 to 54 | 366 | 7.0% | 6.7% | 345 | 6.5% | 6.8% | +21 | +0.5pp |
| 55 to 59 | 302 | 5.8% | 6.8% | 303 | 5.7% | 6.8% | -1 | +0.1pp |
| 60 to 64 | 300 | 5.8% | 6.6% | 277 | 5.3% | 5.7% | +23 | +0.5pp |
| 65 to 69 | 260 | 5.0% | 5.5% | 215 | 4.1% | 4.6% | +45 | +0.9pp |
| 70 to 74 | 205 | 3.9% | 4.3% | 171 | 3.2% | 3.1% | +34 | +0.7pp |
| 75 to 79 | 145 | 2.8% | 2.8% | 129 | 2.4% | 2.5% | +16 | +0.4pp |
| 80 to 84 | 88 | 1.7% | 2.1% | 101 | 1.9% | 1.8% | -13 | -0.2pp |
| 85 and over | 120 | 2.3% | 2.1% | 112 | 2.1% | 1.8% | +8 | +0.2pp |
| Total | 5,198 | 100.0% | 100.0% | 5,273 | 100.0% | 100.0% | -75 | 0.0pp |