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 Mulgoa, accounting for 19.6% (400 people). This share was lower than Penrith (C) (21%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 397 people and 16 percentage points.
Section overview
Age structure - Service age groups
Mulgoa - Total persons (Usual residence)
This table summarises service age groups for Mulgoa in 2021 for persons, with comparison against Penrith (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Mulgoa, with comparison markers for Penrith (C).
Babies and pre-schoolers (0 to 4)
2021 count
111
% of total
5.4%
Change from 2016
+1.8pp
111
5.4%
+1.8pp
Primary schoolers (5 to 11)
2021 count
188
% of total
9.2%
Change from 2016
+5.6pp
188
9.2%
+5.6pp
Secondary schoolers (12 to 17)
2021 count
206
% of total
10.1%
Change from 2016
+6.5pp
206
10.1%
+6.5pp
Tertiary education and independence (18 to 24)
2021 count
196
% of total
9.6%
Change from 2016
+6.0pp
196
9.6%
+6.0pp
Young workforce (25 to 34)
2021 count
187
% of total
9.1%
Change from 2016
+5.5pp
187
9.1%
+5.5pp
Parents and homebuilders (35 to 49)
2021 count
400
% of total
19.6%
Change from 2016
+16.0pp
400
19.6%
+16.0pp
Older workers and pre-retirees (50 to 59)
2021 count
270
% of total
13.2%
Change from 2016
-8.2pp
270
13.2%
-8.2pp
Empty nesters and retirees (60 to 69)
2021 count
234
% of total
11.4%
Change from 2016
-6.5pp
234
11.4%
-6.5pp
Seniors (70 to 84)
2021 count
219
% of total
10.7%
Change from 2016
+3.6pp
219
10.7%
+3.6pp
Elderly aged (85 and over)
2021 count
21
% of total
1.0%
Change from 2016
+1.0pp
21
1.0%
+1.0pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+108
+1.8pp
Primary schoolers (5 to 11)
+185
+5.6pp
Secondary schoolers (12 to 17)
+203
+6.5pp
Tertiary education and independence (18 to 24)
+193
+6.0pp
Young workforce (25 to 34)
+184
+5.5pp
Parents and homebuilders (35 to 49)
+397
+16.0pp
Older workers and pre-retirees (50 to 59)
+252
-8.2pp
Empty nesters and retirees (60 to 69)
+219
-6.5pp
Seniors (70 to 84)
+213
+3.6pp
Elderly aged (85 and over)
+21
+1.0pp
Data table
Service age groups for Mulgoa. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Penrith (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Penrith (C)% | Count | % | Penrith (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 111 | 5.4% | 7.2% | 3 | 3.6% | 7.4% | +108 | +1.8pp |
| Primary schoolers (5 to 11) | 188 | 9.2% | 9.9% | 3 | 3.6% | 9.8% | +185 | +5.6pp |
| Secondary schoolers (12 to 17) | 206 | 10.1% | 7.8% | 3 | 3.6% | 7.8% | +203 | +6.5pp |
| Tertiary education and independence (18 to 24) | 196 | 9.6% | 9.3% | 3 | 3.6% | 9.9% | +193 | +6.0pp |
| Young workforce (25 to 34) | 187 | 9.1% | 15.2% | 3 | 3.6% | 15.4% | +184 | +5.5pp |
| Parents and homebuilders (35 to 49) | 400 | 19.6% | 21.0% | 3 | 3.6% | 20.5% | +397 | +16.0pp |
| Older workers and pre-retirees (50 to 59) | 270 | 13.2% | 11.4% | 18 | 21.4% | 12.3% | +252 | -8.2pp |
| Empty nesters and retirees (60 to 69) | 234 | 11.4% | 9.5% | 15 | 17.9% | 9.7% | +219 | -6.5pp |
| Seniors (70 to 84) | 219 | 10.7% | 7.5% | 6 | 7.1% | 6.0% | +213 | +3.6pp |
| Elderly aged (85 and over) | 21 | 1.0% | 1.2% | 0 | 0.0% | 1.2% | +21 | +1.0pp |
| Total | 2,044 | 100.0% | 100.0% | 84 | 100.0% | 100.0% | +1,960 | 0.0pp |