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 Mawson Lakes, accounting for 23.2% (3,203 people). This share was higher than Salisbury (C) (20.1%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which increased by 212 people and 1.3 percentage points.
Section overview
Age structure - Service age groups
Mawson Lakes - Total persons (Usual residence)
This table summarises service age groups for Mawson Lakes in 2021 for persons, with comparison against Salisbury (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Mawson Lakes, with comparison markers for Salisbury (C).
Babies and pre-schoolers (0 to 4)
2021 count
847
% of total
6.1%
Change from 2016
-1.7pp
847
6.1%
-1.7pp
Primary schoolers (5 to 11)
2021 count
1,255
% of total
9.1%
Change from 2016
-0.1pp
1,255
9.1%
-0.1pp
Secondary schoolers (12 to 17)
2021 count
961
% of total
7.0%
Change from 2016
+1.1pp
961
7.0%
+1.1pp
Tertiary education and independence (18 to 24)
2021 count
1,653
% of total
12.0%
Change from 2016
-1.2pp
1,653
12.0%
-1.2pp
Young workforce (25 to 34)
2021 count
2,649
% of total
19.2%
Change from 2016
-2.2pp
2,649
19.2%
-2.2pp
Parents and homebuilders (35 to 49)
2021 count
3,203
% of total
23.2%
Change from 2016
-0.2pp
3,203
23.2%
-0.2pp
Older workers and pre-retirees (50 to 59)
2021 count
1,493
% of total
10.8%
Change from 2016
+1.1pp
1,493
10.8%
+1.1pp
Empty nesters and retirees (60 to 69)
2021 count
1,018
% of total
7.4%
Change from 2016
+1.3pp
1,018
7.4%
+1.3pp
Seniors (70 to 84)
2021 count
580
% of total
4.2%
Change from 2016
+1.2pp
580
4.2%
+1.2pp
Elderly aged (85 and over)
2021 count
117
% of total
0.8%
Change from 2016
+0.1pp
117
0.8%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-194
-1.7pp
Primary schoolers (5 to 11)
+31
-0.1pp
Secondary schoolers (12 to 17)
+181
+1.1pp
Tertiary education and independence (18 to 24)
-97
-1.2pp
Young workforce (25 to 34)
-192
-2.2pp
Parents and homebuilders (35 to 49)
+95
-0.2pp
Older workers and pre-retirees (50 to 59)
+205
+1.1pp
Empty nesters and retirees (60 to 69)
+212
+1.3pp
Seniors (70 to 84)
+187
+1.2pp
Elderly aged (85 and over)
+26
+0.1pp
Data table
Service age groups for Mawson Lakes. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Salisbury (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Salisbury (C)% | Count | % | Salisbury (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 847 | 6.1% | 6.3% | 1,041 | 7.8% | 6.9% | -194 | -1.7pp |
| Primary schoolers (5 to 11) | 1,255 | 9.1% | 9.3% | 1,224 | 9.2% | 9.2% | +31 | -0.1pp |
| Secondary schoolers (12 to 17) | 961 | 7.0% | 7.4% | 780 | 5.9% | 7.2% | +181 | +1.1pp |
| Tertiary education and independence (18 to 24) | 1,653 | 12.0% | 9.4% | 1,750 | 13.2% | 9.8% | -97 | -1.2pp |
| Young workforce (25 to 34) | 2,649 | 19.2% | 14.6% | 2,841 | 21.4% | 15.3% | -192 | -2.2pp |
| Parents and homebuilders (35 to 49) | 3,203 | 23.2% | 20.1% | 3,108 | 23.4% | 19.8% | +95 | -0.2pp |
| Older workers and pre-retirees (50 to 59) | 1,493 | 10.8% | 12.0% | 1,288 | 9.7% | 12.3% | +205 | +1.1pp |
| Empty nesters and retirees (60 to 69) | 1,018 | 7.4% | 10.0% | 806 | 6.1% | 9.9% | +212 | +1.3pp |
| Seniors (70 to 84) | 580 | 4.2% | 9.1% | 393 | 3.0% | 7.9% | +187 | +1.2pp |
| Elderly aged (85 and over) | 117 | 0.8% | 1.8% | 91 | 0.7% | 1.6% | +26 | +0.1pp |
| Total | 13,794 | 100.0% | 100.0% | 13,297 | 100.0% | 100.0% | +497 | 0.0pp |