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, Older workers and pre-retirees (50 to 59) was the most common category among residents in Kalgan, accounting for 17.4% (146 people). This share was higher than Albany (C) (13.4%). Since 2016, the biggest change was in Secondary schoolers (12 to 17), which decreased by 51 people and 6.9 percentage points.
Section overview
Age structure - Service age groups
Kalgan - Total persons (Usual residence)
This table summarises service age groups for Kalgan in 2021 for persons, with comparison against Albany (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Kalgan, with comparison markers for Albany (C).
Babies and pre-schoolers (0 to 4)
2021 count
31
% of total
3.7%
Change from 2016
+0.1pp
31
3.7%
+0.1pp
Primary schoolers (5 to 11)
2021 count
76
% of total
9.0%
Change from 2016
+0.6pp
76
9.0%
+0.6pp
Secondary schoolers (12 to 17)
2021 count
124
% of total
14.8%
Change from 2016
-6.9pp
124
14.8%
-6.9pp
Tertiary education and independence (18 to 24)
2021 count
45
% of total
5.4%
Change from 2016
+1.2pp
45
5.4%
+1.2pp
Young workforce (25 to 34)
2021 count
70
% of total
8.3%
Change from 2016
+3.1pp
70
8.3%
+3.1pp
Parents and homebuilders (35 to 49)
2021 count
139
% of total
16.5%
Change from 2016
-2.0pp
139
16.5%
-2.0pp
Older workers and pre-retirees (50 to 59)
2021 count
146
% of total
17.4%
Change from 2016
+2.4pp
146
17.4%
+2.4pp
Empty nesters and retirees (60 to 69)
2021 count
109
% of total
13.0%
Change from 2016
-2.3pp
109
13.0%
-2.3pp
Seniors (70 to 84)
2021 count
99
% of total
11.8%
Change from 2016
+4.7pp
99
11.8%
+4.7pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-1.5pp
0
0.0%
-1.5pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+2
+0.1pp
Primary schoolers (5 to 11)
+8
+0.6pp
Secondary schoolers (12 to 17)
-51
-6.9pp
Tertiary education and independence (18 to 24)
+11
+1.2pp
Young workforce (25 to 34)
+28
+3.1pp
Parents and homebuilders (35 to 49)
-10
-2.0pp
Older workers and pre-retirees (50 to 59)
+25
+2.4pp
Empty nesters and retirees (60 to 69)
-14
-2.3pp
Seniors (70 to 84)
+42
+4.7pp
Elderly aged (85 and over)
-12
-1.5pp
Data table
Service age groups for Kalgan. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Albany (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Albany (C)% | Count | % | Albany (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 31 | 3.7% | 5.0% | 29 | 3.6% | 5.4% | +2 | +0.1pp |
| Primary schoolers (5 to 11) | 76 | 9.0% | 8.3% | 68 | 8.4% | 8.8% | +8 | +0.6pp |
| Secondary schoolers (12 to 17) | 124 | 14.8% | 8.3% | 175 | 21.7% | 8.6% | -51 | -6.9pp |
| Tertiary education and independence (18 to 24) | 45 | 5.4% | 6.6% | 34 | 4.2% | 7.1% | +11 | +1.2pp |
| Young workforce (25 to 34) | 70 | 8.3% | 10.7% | 42 | 5.2% | 10.6% | +28 | +3.1pp |
| Parents and homebuilders (35 to 49) | 139 | 16.5% | 17.1% | 149 | 18.5% | 18.3% | -10 | -2.0pp |
| Older workers and pre-retirees (50 to 59) | 146 | 17.4% | 13.4% | 121 | 15.0% | 13.9% | +25 | +2.4pp |
| Empty nesters and retirees (60 to 69) | 109 | 13.0% | 13.9% | 123 | 15.3% | 13.3% | -14 | -2.3pp |
| Seniors (70 to 84) | 99 | 11.8% | 13.6% | 57 | 7.1% | 11.3% | +42 | +4.7pp |
| Elderly aged (85 and over) | 0 | 0.0% | 3.0% | 12 | 1.5% | 2.9% | -12 | -1.5pp |
| Total | 840 | 100.0% | 100.0% | 806 | 100.0% | 100.0% | +34 | 0.0pp |