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 Balaclava (NSW), accounting for 23.2% (133 people). This share was higher than Wingecarribee (A) (16.3%). Since 2016, the biggest change was in Primary schoolers (5 to 11), which increased by 35 people and 5.3 percentage points.
Section overview
Age structure - Service age groups
Balaclava (NSW) - Total persons (Usual residence)
This table summarises service age groups for Balaclava (NSW) in 2021 for persons, with comparison against Wingecarribee (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Balaclava (NSW), with comparison markers for Wingecarribee (A).
Babies and pre-schoolers (0 to 4)
2021 count
44
% of total
7.7%
Change from 2016
+1.2pp
44
7.7%
+1.2pp
Primary schoolers (5 to 11)
2021 count
65
% of total
11.3%
Change from 2016
+5.3pp
65
11.3%
+5.3pp
Secondary schoolers (12 to 17)
2021 count
34
% of total
5.9%
Change from 2016
+1.7pp
34
5.9%
+1.7pp
Tertiary education and independence (18 to 24)
2021 count
40
% of total
7.0%
Change from 2016
+0.3pp
40
7.0%
+0.3pp
Young workforce (25 to 34)
2021 count
67
% of total
11.7%
Change from 2016
+0.8pp
67
11.7%
+0.8pp
Parents and homebuilders (35 to 49)
2021 count
133
% of total
23.2%
Change from 2016
+2.6pp
133
23.2%
+2.6pp
Older workers and pre-retirees (50 to 59)
2021 count
86
% of total
15.0%
Change from 2016
-1.3pp
86
15.0%
-1.3pp
Empty nesters and retirees (60 to 69)
2021 count
72
% of total
12.5%
Change from 2016
-0.2pp
72
12.5%
-0.2pp
Seniors (70 to 84)
2021 count
49
% of total
8.5%
Change from 2016
-1.0pp
49
8.5%
-1.0pp
Elderly aged (85 and over)
2021 count
7
% of total
1.2%
Change from 2016
-0.4pp
7
1.2%
-0.4pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+12
+1.2pp
Primary schoolers (5 to 11)
+35
+5.3pp
Secondary schoolers (12 to 17)
+13
+1.7pp
Tertiary education and independence (18 to 24)
+7
+0.3pp
Young workforce (25 to 34)
+13
+0.8pp
Parents and homebuilders (35 to 49)
+31
+2.6pp
Older workers and pre-retirees (50 to 59)
+5
-1.3pp
Empty nesters and retirees (60 to 69)
+9
-0.2pp
Seniors (70 to 84)
+2
-1.0pp
Elderly aged (85 and over)
-1
-0.4pp
Data table
Service age groups for Balaclava (NSW). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Wingecarribee (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Wingecarribee (A)% | Count | % | Wingecarribee (A)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 44 | 7.7% | 4.9% | 32 | 6.5% | 4.9% | +12 | +1.2pp |
| Primary schoolers (5 to 11) | 65 | 11.3% | 8.0% | 30 | 6.0% | 8.7% | +35 | +5.3pp |
| Secondary schoolers (12 to 17) | 34 | 5.9% | 7.5% | 21 | 4.2% | 8.2% | +13 | +1.7pp |
| Tertiary education and independence (18 to 24) | 40 | 7.0% | 6.1% | 33 | 6.7% | 6.1% | +7 | +0.3pp |
| Young workforce (25 to 34) | 67 | 11.7% | 9.0% | 54 | 10.9% | 8.3% | +13 | +0.8pp |
| Parents and homebuilders (35 to 49) | 133 | 23.2% | 16.3% | 102 | 20.6% | 17.2% | +31 | +2.6pp |
| Older workers and pre-retirees (50 to 59) | 86 | 15.0% | 13.4% | 81 | 16.3% | 13.8% | +5 | -1.3pp |
| Empty nesters and retirees (60 to 69) | 72 | 12.5% | 14.1% | 63 | 12.7% | 14.9% | +9 | -0.2pp |
| Seniors (70 to 84) | 49 | 8.5% | 17.4% | 47 | 9.5% | 15.0% | +2 | -1.0pp |
| Elderly aged (85 and over) | 7 | 1.2% | 3.3% | 8 | 1.6% | 3.0% | -1 | -0.4pp |
| Total | 574 | 100.0% | 100.0% | 496 | 100.0% | 100.0% | +78 | 0.0pp |