Population
Service age groups
About this topic
Service age groups divide the population into broad life-stage bands such as children, young adults, working-age adults, and older people. The groupings are designed to reflect typical demand for age-based services and facilities rather than exact five-year cohorts.
This view is useful for planning childcare, schools, recreation, aged services, and other community infrastructure. It works best alongside five year age groups, household type, and dwelling data, which add more detail about who is living in an area and how needs may change over time.
Interpretation notes
- This is a derived grouping rather than a direct Census question, so the age bands are planning-oriented summaries built from standard age data.
- Percentages relate to the total population; use five year age groups when exact cohort detail matters.
Related topics
Key insight
In 2021, Parents and homebuilders (35 to 49) was the most common category among residents in Mount Pritchard (part), accounting for 18.8% (1,965 people). This share was higher than Fairfield (C) (18.4%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 1,724 people, while its share fell by 1.4 percentage points.
Section overview
Age structure - Service age groups
Mount Pritchard (part) - Total persons (Usual residence)
This table summarises service age groups for Mount Pritchard (part) in 2021 for persons, with comparison against Fairfield (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Mount Pritchard (part), with comparison markers for Fairfield (C).
Babies and pre-schoolers (0 to 4)
2021 count
611
% of total
5.9%
Change from 2016
+1.2pp
611
5.9%
+1.2pp
Primary schoolers (5 to 11)
2021 count
1,028
% of total
9.9%
Change from 2016
+1.3pp
1,028
9.9%
+1.3pp
Secondary schoolers (12 to 17)
2021 count
910
% of total
8.7%
Change from 2016
-0.6pp
910
8.7%
-0.6pp
Tertiary education and independence (18 to 24)
2021 count
1,041
% of total
10.0%
Change from 2016
-3.3pp
1,041
10.0%
-3.3pp
Young workforce (25 to 34)
2021 count
1,394
% of total
13.4%
Change from 2016
+2.4pp
1,394
13.4%
+2.4pp
Parents and homebuilders (35 to 49)
2021 count
1,965
% of total
18.8%
Change from 2016
-1.4pp
1,965
18.8%
-1.4pp
Older workers and pre-retirees (50 to 59)
2021 count
1,322
% of total
12.7%
Change from 2016
-2.4pp
1,322
12.7%
-2.4pp
Empty nesters and retirees (60 to 69)
2021 count
1,143
% of total
11.0%
Change from 2016
+1.7pp
1,143
11.0%
+1.7pp
Seniors (70 to 84)
2021 count
883
% of total
8.5%
Change from 2016
+1.3pp
883
8.5%
+1.3pp
Elderly aged (85 and over)
2021 count
170
% of total
1.6%
Change from 2016
+0.7pp
170
1.6%
+0.7pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+555
+1.2pp
Primary schoolers (5 to 11)
+925
+1.3pp
Secondary schoolers (12 to 17)
+799
-0.6pp
Tertiary education and independence (18 to 24)
+883
-3.3pp
Young workforce (25 to 34)
+1,263
+2.4pp
Parents and homebuilders (35 to 49)
+1,724
-1.4pp
Older workers and pre-retirees (50 to 59)
+1,142
-2.4pp
Empty nesters and retirees (60 to 69)
+1,032
+1.7pp
Seniors (70 to 84)
+797
+1.3pp
Elderly aged (85 and over)
+159
+0.7pp
Data table
Service age groups for Mount Pritchard (part). Age structure - Service 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 | |
| Babies and pre-schoolers (0 to 4) | 611 | 5.9% | 5.2% | 56 | 4.7% | 6.1% | +555 | +1.2pp |
| Primary schoolers (5 to 11) | 1,028 | 9.9% | 8.6% | 103 | 8.6% | 9.0% | +925 | +1.3pp |
| Secondary schoolers (12 to 17) | 910 | 8.7% | 8.2% | 111 | 9.3% | 8.2% | +799 | -0.6pp |
| Tertiary education and independence (18 to 24) | 1,041 | 10.0% | 9.9% | 158 | 13.3% | 10.7% | +883 | -3.3pp |
| Young workforce (25 to 34) | 1,394 | 13.4% | 13.0% | 131 | 11.0% | 13.6% | +1,263 | +2.4pp |
| Parents and homebuilders (35 to 49) | 1,965 | 18.8% | 18.4% | 241 | 20.2% | 19.3% | +1,724 | -1.4pp |
| Older workers and pre-retirees (50 to 59) | 1,322 | 12.7% | 13.4% | 180 | 15.1% | 13.6% | +1,142 | -2.4pp |
| Empty nesters and retirees (60 to 69) | 1,143 | 11.0% | 12.1% | 111 | 9.3% | 10.3% | +1,032 | +1.7pp |
| Seniors (70 to 84) | 883 | 8.5% | 9.2% | 86 | 7.2% | 7.4% | +797 | +1.3pp |
| Elderly aged (85 and over) | 170 | 1.6% | 2.1% | 11 | 0.9% | 1.8% | +159 | +0.7pp |
| Total | 10,426 | 100.0% | 100.0% | 1,192 | 100.0% | 100.0% | +9,234 | 0.0pp |