Mountains and Valleys
Five year age groups
In 2021, the largest age group in Mountains and Valleys was 50 to 54 year olds. The group that changed the most since 1991 was 60 to 64 year olds, increasing by 201 people.
The Age Structure of Mountains and Valleys provides key insights into the level of demand for age based services and facilities such as child care. It is also an indicator of Mountains and Valleys'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 Mountains and Valleys's Age Structure should be viewed in conjunction with Household Types and Dwelling Types.
Derived from the Census question:
'What is the person's date of birth or age?'
Total population
| Age structure - Five year age groups | ||||||||
|---|---|---|---|---|---|---|---|---|
| Mountains and Valleys - Total females (Enumerated) | 2021 | 1991 | Change | |||||
| Five year age groups (years) | Number | % | Gosford - West Gosford % | Number | % | Gosford - West Gosford % | 1991 to 2021 | |
| 0 to 4 | 144 | 3.6 | 5.0 | 243 | 8.1 | 5.6 | -99 | 2001 |
| 5 to 9 | 205 | 5.2 | 3.0 | 223 | 7.5 | 4.2 | -19 | 2002 |
| 10 to 14 | 245 | 6.2 | 2.8 | 298 | 10.0 | 3.3 | -53 | 2003 |
| 15 to 19 | 293 | 7.4 | 3.2 | 200 | 6.7 | 6.3 | +92 | 2004 |
| 20 to 24 | 250 | 6.3 | 8.3 | 185 | 6.2 | 11.3 | +65 | 2005 |
| 25 to 29 | 164 | 4.1 | 12.2 | 211 | 7.1 | 5.9 | -48 | 2006 |
| 30 to 34 | 183 | 4.6 | 10.6 | 252 | 8.4 | 7.1 | -69 | 2007 |
| 35 to 39 | 222 | 5.6 | 7.2 | 237 | 8.0 | 5.5 | -16 | 2008 |
| 40 to 44 | 234 | 5.9 | 5.7 | 244 | 8.2 | 4.8 | -11 | 2009 |
| 45 to 49 | 294 | 7.4 | 5.4 | 228 | 7.6 | 6.0 | +65 | 2010 |
| 50 to 54 | 353 | 8.9 | 5.1 | 165 | 5.5 | 5.1 | +188 | 2011 |
| 55 to 59 | 319 | 8.0 | 5.4 | 129 | 4.3 | 4.2 | +190 | 2012 |
| 60 to 64 | 319 | 8.0 | 5.2 | 117 | 3.9 | 6.1 | +201 | 2013 |
| 65 to 69 | 267 | 6.7 | 4.9 | 99 | 3.3 | 6.9 | +167 | 2014 |
| 70 to 74 | 201 | 5.1 | 4.2 | 68 | 2.3 | 6.6 | +133 | 2015 |
| 75 to 79 | 149 | 3.8 | 3.4 | 43 | 1.4 | 5.6 | +106 | 2016 |
| 80 to 84 | 78 | 2.0 | 2.8 | 26 | 0.9 | 3.9 | +51 | 2017 |
| 85 and over | 46 | 1.2 | 5.7 | 13 | 0.5 | 1.5 | +32 | 2018 |
| Total population | 3,966 | 100.0 | 100.0 | 2,990 | 100.0 | 100.0 | +975 | |
Source: Australian Bureau of Statistics, Census of Population and Housing (opens a new window) 1991 and 2021. Compiled and presented by .id (opens a new window)(informed decisions).
(Enumerated data)
Compiled and presented in profile.id by .id (informed decisions).
Compiled and presented in profile.id by .id (informed decisions).
Dominant groups
Analysis of the female five year age groups of Mountains and Valleys in 2021 compared to Gosford - West Gosford shows that there was a higher proportion of females in the younger age groups (under 15) and a lower proportion of females in the older age groups (65+).
Overall, 15.0% of the female population was aged between 0 and 15, and 18.7% were aged 65 years and over, compared with 10.7% and 21.0% respectively for Gosford - West Gosford.
The major differences between the female age structure of Mountains and Valleys and Gosford - West Gosford were:
- A larger percentage of females aged 15 to 19 (7.4% compared to 3.2%)
- A smaller percentage of females aged 25 to 29 (4.1% compared to 12.2%)
- A smaller percentage of females aged 30 to 34 (4.6% compared to 10.6%)
- A smaller percentage of females aged 85 and over (1.2% compared to 5.7%)
Emerging groups
From 1991 to 2021, Mountains and Valleys's female population increased by 976 people (32.6%). This represents an average annual population change of 0.95% per year over the period.
The largest changes in female age structure in this area between 1991 and 2021 were in the age groups:
- 60 to 64 (+201 females)
- 55 to 59 (+190 females)
- 50 to 54 (+188 females)
- 65 to 69 (+167 females)