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.

Key insight

In 2021, 55 to 59 year olds was the largest age group among residents in Minchinbury, accounting for 8% (465 people). This share was higher than Blacktown (C) (5.1%). Since 2016, the biggest change was in 60 to 64 year olds, which increased by 81 people and 1.3 percentage points.

Section overview

Age structure - Five year age groups

Minchinbury - Total persons (Usual residence)

This table summarises five year age groups for Minchinbury in 2021 for persons, with comparison against Blacktown (C) and change since 2016.

Age structure - Five year age groups snapshot

2021 distribution by category for Minchinbury, with comparison markers for Blacktown (C).

Minchinbury
Blacktown (C)

0 to 4

2021 count

386

% of total

6.7%

Change from 2016

-0.4pp

5 to 9

2021 count

402

% of total

7.0%

Change from 2016

-0.2pp

10 to 14

2021 count

420

% of total

7.3%

Change from 2016

+0.1pp

15 to 19

2021 count

421

% of total

7.3%

Change from 2016

-0.1pp

20 to 24

2021 count

413

% of total

7.1%

Change from 2016

-1.4pp

25 to 29

2021 count

416

% of total

7.2%

Change from 2016

0.0pp

30 to 34

2021 count

379

% of total

6.6%

Change from 2016

-0.4pp

35 to 39

2021 count

382

% of total

6.6%

Change from 2016

-0.5pp

40 to 44

2021 count

378

% of total

6.5%

Change from 2016

+0.4pp

45 to 49

2021 count

359

% of total

6.2%

Change from 2016

-0.9pp

50 to 54

2021 count

416

% of total

7.2%

Change from 2016

-1.0pp

55 to 59

2021 count

465

% of total

8.0%

Change from 2016

+1.1pp

60 to 64

2021 count

357

% of total

6.2%

Change from 2016

+1.3pp

65 to 69

2021 count

237

% of total

4.1%

Change from 2016

+0.2pp

70 to 74

2021 count

188

% of total

3.3%

Change from 2016

+1.1pp

75 to 79

2021 count

113

% of total

2.0%

Change from 2016

+0.9pp

80 to 84

2021 count

49

% of total

0.8%

Change from 2016

+0.4pp

85 and over

2021 count

23

% of total

0.4%

Change from 2016

-0.3pp

Data table

Five year age groups for Minchinbury. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).

Five year age groups for Minchinbury. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).
Five year age groups for Minchinbury. Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Blacktown (C).
Category20212016Change
Count%Blacktown (C)%Count%Blacktown (C)%Countpp
0 to 43866.7%7.5%3997.1%8.0%-13-0.4pp
5 to 94027.0%7.9%4047.2%7.9%-2-0.2pp
10 to 144207.3%7.3%4037.2%6.9%+17+0.1pp
15 to 194217.3%6.1%4167.4%6.9%+5-0.1pp
20 to 244137.1%6.7%4758.5%6.8%-62-1.4pp
25 to 294167.2%7.0%4067.2%7.2%+100.0pp
30 to 343796.6%7.9%3957.0%8.3%-16-0.4pp
35 to 393826.6%9.2%4017.1%8.1%-19-0.5pp
40 to 443786.5%7.8%3436.1%7.2%+35+0.4pp
45 to 493596.2%6.4%3987.1%6.5%-39-0.9pp
50 to 544167.2%5.6%4608.2%6.0%-44-1.0pp
55 to 594658.0%5.1%3866.9%5.4%+79+1.1pp
60 to 643576.2%4.5%2764.9%4.6%+81+1.3pp
65 to 692374.1%3.7%2193.9%3.8%+18+0.2pp
70 to 741883.3%3.1%1232.2%2.5%+65+1.1pp
75 to 791132.0%1.9%601.1%1.7%+53+0.9pp
80 to 84490.8%1.2%240.4%1.1%+25+0.4pp
85 and over230.4%1.1%390.7%1.1%-16-0.3pp
Total5,778100.0%100.0%5,619100.0%100.0%+1590.0pp