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City of KnoxCommunity profile

City of Knox

Five year age groups

In 2021, the largest age group in the City of Knox was 35 to 39 year olds. The group that changed the most since 2016 was 70 to 74 year olds, increasing by 887 people.

The Age Structure of the City of Knox provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of the City of Knox's residential role and function and how it is likely to change in the future.

Five year age groups present a classic age profile of the population. Each age group covers exactly five years, which enables direct comparison between each group.

To get a more complete picture the City of Knox's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.

Q:

Derived from the Census question:

'What is the person's date of birth or age?'

Age structure - Five year age groups
City of Knox - Total females (Usual residence)20212016Change
Five year age groups (years)Number%Greater Melbourne %Number%Greater Melbourne %2016 to 2021
0 to 44,1465.15.74,4105.66.1-264
5 to 94,5925.76.04,2855.45.9+307
10 to 144,3195.35.74,3855.65.4-66
15 to 194,4725.55.44,8316.15.8-359
20 to 244,6275.76.44,9746.37.2-347
25 to 294,6915.87.64,9686.38.0-277
30 to 345,5056.88.35,3476.88.2+158
35 to 395,8797.28.05,2206.67.2+659
40 to 445,5256.86.85,4286.97.0+97
45 to 495,5296.86.65,8337.46.9-304
50 to 545,6717.06.45,7067.26.3-35
55 to 595,5186.85.75,4056.95.8+113
60 to 645,1676.45.24,9196.25.0+248
65 to 694,5825.64.54,1745.34.5+408
70 to 743,8944.84.13,0073.83.4+887
75 to 792,7993.42.92,2522.92.7+547
80 to 842,0502.52.21,6482.12.1+402
85 and over2,2032.72.52,0082.52.4+195
Total population81,169100.0100.078,800100.0100.0+2,369
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information

Dominant groups

Analysis of the female five year age groups of the City of Knox in 2021 compared to Greater Melbourne shows that there was a lower proportion of females in the younger age groups (under 15) and a higher proportion of females in the older age groups (65+).

Overall, 16.1% of the female population was aged between 0 and 15, and 19.1% were aged 65 years and over, compared with 17.4% and 16.2% respectively for Greater Melbourne.

The major differences between the female age structure of the City of Knox and Greater Melbourne were:

  • A larger percentage of females aged 60 to 64 (6.4% compared to 5.2%)
  • A larger percentage of females aged 65 to 69 (5.6% compared to 4.5%)
  • A smaller percentage of females aged 25 to 29 (5.8% compared to 7.6%)
  • A smaller percentage of females aged 30 to 34 (6.8% compared to 8.3%)

Emerging groups

From 2016 to 2021, City of Knox's female population increased by 2,369 people (3.0%). This represents an average annual population change of 0.59% per year over the period.

The largest changes in female age structure in this area between 2016 and 2021 were in the age groups:

  • 70 to 74 (+887 females)
  • 35 to 39 (+659 females)
  • 75 to 79 (+547 females)
  • 65 to 69 (+408 females)

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