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 Old Guildford, accounting for 8.9% (254 people). This share was higher than Fairfield (C) (6.1%). Since 2016, the biggest change was in 5 to 9 year olds, which increased by 254 people and 8.9 percentage points.
Section overview
Age structure - Five year age groups
Old Guildford - Total persons (Usual residence)
This table summarises five year age groups for Old Guildford 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 Old Guildford, with comparison markers for Fairfield (C).
0 to 4
2021 count
247
% of total
8.6%
Change from 2016
+8.6pp
247
8.6%
+8.6pp
5 to 9
2021 count
254
% of total
8.9%
Change from 2016
+8.9pp
254
8.9%
+8.9pp
10 to 14
2021 count
233
% of total
8.2%
Change from 2016
-1.2pp
233
8.2%
-1.2pp
15 to 19
2021 count
234
% of total
8.2%
Change from 2016
+8.2pp
234
8.2%
+8.2pp
20 to 24
2021 count
244
% of total
8.5%
Change from 2016
+8.5pp
244
8.5%
+8.5pp
25 to 29
2021 count
241
% of total
8.4%
Change from 2016
-1.0pp
241
8.4%
-1.0pp
30 to 34
2021 count
226
% of total
7.9%
Change from 2016
+7.9pp
226
7.9%
+7.9pp
35 to 39
2021 count
167
% of total
5.8%
Change from 2016
+5.8pp
167
5.8%
+5.8pp
40 to 44
2021 count
155
% of total
5.4%
Change from 2016
+5.4pp
155
5.4%
+5.4pp
45 to 49
2021 count
155
% of total
5.4%
Change from 2016
-4.0pp
155
5.4%
-4.0pp
50 to 54
2021 count
121
% of total
4.2%
Change from 2016
-14.6pp
121
4.2%
-14.6pp
55 to 59
2021 count
153
% of total
5.4%
Change from 2016
-4.0pp
153
5.4%
-4.0pp
60 to 64
2021 count
121
% of total
4.2%
Change from 2016
-5.2pp
121
4.2%
-5.2pp
65 to 69
2021 count
96
% of total
3.4%
Change from 2016
+3.4pp
96
3.4%
+3.4pp
70 to 74
2021 count
85
% of total
3.0%
Change from 2016
+3.0pp
85
3.0%
+3.0pp
75 to 79
2021 count
40
% of total
1.4%
Change from 2016
+1.4pp
40
1.4%
+1.4pp
80 to 84
2021 count
36
% of total
1.3%
Change from 2016
-8.1pp
36
1.3%
-8.1pp
85 and over
2021 count
36
% of total
1.3%
Change from 2016
+1.3pp
36
1.3%
+1.3pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+247
+8.6pp
5 to 9
+254
+8.9pp
10 to 14
+230
-1.2pp
15 to 19
+234
+8.2pp
20 to 24
+244
+8.5pp
25 to 29
+238
-1.0pp
30 to 34
+226
+7.9pp
35 to 39
+167
+5.8pp
40 to 44
+155
+5.4pp
45 to 49
+152
-4.0pp
50 to 54
+115
-14.6pp
55 to 59
+150
-4.0pp
60 to 64
+118
-5.2pp
65 to 69
+96
+3.4pp
70 to 74
+85
+3.0pp
75 to 79
+40
+1.4pp
80 to 84
+33
-8.1pp
85 and over
+36
+1.3pp
Data table
Five year age groups for Old Guildford. 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 | 247 | 8.6% | 5.2% | 0 | 0.0% | 6.1% | +247 | +8.6pp |
| 5 to 9 | 254 | 8.9% | 6.1% | 0 | 0.0% | 6.4% | +254 | +8.9pp |
| 10 to 14 | 233 | 8.2% | 6.6% | 3 | 9.4% | 6.6% | +230 | -1.2pp |
| 15 to 19 | 234 | 8.2% | 6.9% | 0 | 0.0% | 7.1% | +234 | +8.2pp |
| 20 to 24 | 244 | 8.5% | 7.0% | 0 | 0.0% | 7.7% | +244 | +8.5pp |
| 25 to 29 | 241 | 8.4% | 6.8% | 3 | 9.4% | 7.1% | +238 | -1.0pp |
| 30 to 34 | 226 | 7.9% | 6.2% | 0 | 0.0% | 6.6% | +226 | +7.9pp |
| 35 to 39 | 167 | 5.8% | 6.1% | 0 | 0.0% | 6.0% | +167 | +5.8pp |
| 40 to 44 | 155 | 5.4% | 5.9% | 0 | 0.0% | 6.4% | +155 | +5.4pp |
| 45 to 49 | 155 | 5.4% | 6.4% | 3 | 9.4% | 6.8% | +152 | -4.0pp |
| 50 to 54 | 121 | 4.2% | 6.7% | 6 | 18.8% | 6.8% | +115 | -14.6pp |
| 55 to 59 | 153 | 5.4% | 6.8% | 3 | 9.4% | 6.8% | +150 | -4.0pp |
| 60 to 64 | 121 | 4.2% | 6.6% | 3 | 9.4% | 5.7% | +118 | -5.2pp |
| 65 to 69 | 96 | 3.4% | 5.5% | 0 | 0.0% | 4.6% | +96 | +3.4pp |
| 70 to 74 | 85 | 3.0% | 4.3% | 0 | 0.0% | 3.1% | +85 | +3.0pp |
| 75 to 79 | 40 | 1.4% | 2.8% | 0 | 0.0% | 2.5% | +40 | +1.4pp |
| 80 to 84 | 36 | 1.3% | 2.1% | 3 | 9.4% | 1.8% | +33 | -8.1pp |
| 85 and over | 36 | 1.3% | 2.1% | 0 | 0.0% | 1.8% | +36 | +1.3pp |
| Total | 2,857 | 100.0% | 100.0% | 32 | 100.0% | 100.0% | +2,825 | 0.0pp |