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, 10 to 14 year olds was the largest age group among residents in Bonnyrigg, accounting for 7.4% (725 people). This share was higher than Fairfield (C) (6.6%). Since 2016, the biggest change was in 25 to 29 year olds, which increased by 596 people and 3.2 percentage points.
Section overview
Age structure - Five year age groups
Bonnyrigg - Total persons (Usual residence)
This table summarises five year age groups for Bonnyrigg 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 Bonnyrigg, with comparison markers for Fairfield (C).
0 to 4
2021 count
522
% of total
5.3%
Change from 2016
-0.2pp
522
5.3%
-0.2pp
5 to 9
2021 count
615
% of total
6.3%
Change from 2016
-0.4pp
615
6.3%
-0.4pp
10 to 14
2021 count
725
% of total
7.4%
Change from 2016
+1.3pp
725
7.4%
+1.3pp
15 to 19
2021 count
711
% of total
7.3%
Change from 2016
+1.1pp
711
7.3%
+1.1pp
20 to 24
2021 count
682
% of total
7.0%
Change from 2016
+1.3pp
682
7.0%
+1.3pp
25 to 29
2021 count
680
% of total
6.9%
Change from 2016
+3.2pp
680
6.9%
+3.2pp
30 to 34
2021 count
583
% of total
6.0%
Change from 2016
+1.8pp
583
6.0%
+1.8pp
35 to 39
2021 count
626
% of total
6.4%
Change from 2016
+0.3pp
626
6.4%
+0.3pp
40 to 44
2021 count
595
% of total
6.1%
Change from 2016
-2.3pp
595
6.1%
-2.3pp
45 to 49
2021 count
627
% of total
6.4%
Change from 2016
-1.0pp
627
6.4%
-1.0pp
50 to 54
2021 count
585
% of total
6.0%
Change from 2016
-1.1pp
585
6.0%
-1.1pp
55 to 59
2021 count
650
% of total
6.6%
Change from 2016
-1.0pp
650
6.6%
-1.0pp
60 to 64
2021 count
673
% of total
6.9%
Change from 2016
-0.4pp
673
6.9%
-0.4pp
65 to 69
2021 count
518
% of total
5.3%
Change from 2016
-2.0pp
518
5.3%
-2.0pp
70 to 74
2021 count
414
% of total
4.2%
Change from 2016
-1.3pp
414
4.2%
-1.3pp
75 to 79
2021 count
225
% of total
2.3%
Change from 2016
-0.1pp
225
2.3%
-0.1pp
80 to 84
2021 count
131
% of total
1.3%
Change from 2016
-0.3pp
131
1.3%
-0.3pp
85 and over
2021 count
188
% of total
1.9%
Change from 2016
+1.3pp
188
1.9%
+1.3pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+398
-0.2pp
5 to 9
+464
-0.4pp
10 to 14
+587
+1.3pp
15 to 19
+571
+1.1pp
20 to 24
+554
+1.3pp
25 to 29
+596
+3.2pp
30 to 34
+488
+1.8pp
35 to 39
+488
+0.3pp
40 to 44
+406
-2.3pp
45 to 49
+460
-1.0pp
50 to 54
+425
-1.1pp
55 to 59
+478
-1.0pp
60 to 64
+507
-0.4pp
65 to 69
+353
-2.0pp
70 to 74
+289
-1.3pp
75 to 79
+170
-0.1pp
80 to 84
+95
-0.3pp
85 and over
+174
+1.3pp
Data table
Five year age groups for Bonnyrigg. 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 | 522 | 5.3% | 5.2% | 124 | 5.5% | 6.1% | +398 | -0.2pp |
| 5 to 9 | 615 | 6.3% | 6.1% | 151 | 6.7% | 6.4% | +464 | -0.4pp |
| 10 to 14 | 725 | 7.4% | 6.6% | 138 | 6.1% | 6.6% | +587 | +1.3pp |
| 15 to 19 | 711 | 7.3% | 6.9% | 140 | 6.2% | 7.1% | +571 | +1.1pp |
| 20 to 24 | 682 | 7.0% | 7.0% | 128 | 5.7% | 7.7% | +554 | +1.3pp |
| 25 to 29 | 680 | 6.9% | 6.8% | 84 | 3.7% | 7.1% | +596 | +3.2pp |
| 30 to 34 | 583 | 6.0% | 6.2% | 95 | 4.2% | 6.6% | +488 | +1.8pp |
| 35 to 39 | 626 | 6.4% | 6.1% | 138 | 6.1% | 6.0% | +488 | +0.3pp |
| 40 to 44 | 595 | 6.1% | 5.9% | 189 | 8.4% | 6.4% | +406 | -2.3pp |
| 45 to 49 | 627 | 6.4% | 6.4% | 167 | 7.4% | 6.8% | +460 | -1.0pp |
| 50 to 54 | 585 | 6.0% | 6.7% | 160 | 7.1% | 6.8% | +425 | -1.1pp |
| 55 to 59 | 650 | 6.6% | 6.8% | 172 | 7.6% | 6.8% | +478 | -1.0pp |
| 60 to 64 | 673 | 6.9% | 6.6% | 166 | 7.3% | 5.7% | +507 | -0.4pp |
| 65 to 69 | 518 | 5.3% | 5.5% | 165 | 7.3% | 4.6% | +353 | -2.0pp |
| 70 to 74 | 414 | 4.2% | 4.3% | 125 | 5.5% | 3.1% | +289 | -1.3pp |
| 75 to 79 | 225 | 2.3% | 2.8% | 55 | 2.4% | 2.5% | +170 | -0.1pp |
| 80 to 84 | 131 | 1.3% | 2.1% | 36 | 1.6% | 1.8% | +95 | -0.3pp |
| 85 and over | 188 | 1.9% | 2.1% | 14 | 0.6% | 1.8% | +174 | +1.3pp |
| Total | 9,785 | 100.0% | 100.0% | 2,262 | 100.0% | 100.0% | +7,523 | 0.0pp |