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, Empty nesters and retirees (60 to 69) was the most common category among residents in Larnook (part), accounting for 25.4% (100 people). This share was higher than Lismore (C) (14.6%). Since 2016, the biggest change was in Seniors (70 to 84), which decreased by 157 people and 10.3 percentage points.
Section overview
Age structure - Service age groups
Larnook (part) - Total persons (Usual residence)
This table summarises service age groups for Larnook (part) in 2021 for persons, with comparison against Lismore (C) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Larnook (part), with comparison markers for Lismore (C).
Babies and pre-schoolers (0 to 4)
2021 count
17
% of total
4.3%
Change from 2016
-0.1pp
17
4.3%
-0.1pp
Primary schoolers (5 to 11)
2021 count
42
% of total
10.7%
Change from 2016
+4.4pp
42
10.7%
+4.4pp
Secondary schoolers (12 to 17)
2021 count
33
% of total
8.4%
Change from 2016
-0.1pp
33
8.4%
-0.1pp
Tertiary education and independence (18 to 24)
2021 count
17
% of total
4.3%
Change from 2016
-0.7pp
17
4.3%
-0.7pp
Young workforce (25 to 34)
2021 count
25
% of total
6.3%
Change from 2016
-1.1pp
25
6.3%
-1.1pp
Parents and homebuilders (35 to 49)
2021 count
82
% of total
20.8%
Change from 2016
+9.0pp
82
20.8%
+9.0pp
Older workers and pre-retirees (50 to 59)
2021 count
58
% of total
14.7%
Change from 2016
+0.6pp
58
14.7%
+0.6pp
Empty nesters and retirees (60 to 69)
2021 count
100
% of total
25.4%
Change from 2016
+4.9pp
100
25.4%
+4.9pp
Seniors (70 to 84)
2021 count
30
% of total
7.6%
Change from 2016
-10.3pp
30
7.6%
-10.3pp
Elderly aged (85 and over)
2021 count
4
% of total
1.0%
Change from 2016
-0.8pp
4
1.0%
-0.8pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-29
-0.1pp
Primary schoolers (5 to 11)
-24
+4.4pp
Secondary schoolers (12 to 17)
-56
-0.1pp
Tertiary education and independence (18 to 24)
-35
-0.7pp
Young workforce (25 to 34)
-52
-1.1pp
Parents and homebuilders (35 to 49)
-41
+9.0pp
Older workers and pre-retirees (50 to 59)
-89
+0.6pp
Empty nesters and retirees (60 to 69)
-114
+4.9pp
Seniors (70 to 84)
-157
-10.3pp
Elderly aged (85 and over)
-15
-0.8pp
Data table
Service age groups for Larnook (part). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Lismore (C).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Lismore (C)% | Count | % | Lismore (C)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 17 | 4.3% | 4.8% | 46 | 4.4% | 5.2% | -29 | -0.1pp |
| Primary schoolers (5 to 11) | 42 | 10.7% | 8.4% | 66 | 6.3% | 8.8% | -24 | +4.4pp |
| Secondary schoolers (12 to 17) | 33 | 8.4% | 7.7% | 89 | 8.5% | 7.8% | -56 | -0.1pp |
| Tertiary education and independence (18 to 24) | 17 | 4.3% | 7.4% | 52 | 5.0% | 8.1% | -35 | -0.7pp |
| Young workforce (25 to 34) | 25 | 6.3% | 10.7% | 77 | 7.4% | 10.2% | -52 | -1.1pp |
| Parents and homebuilders (35 to 49) | 82 | 20.8% | 18.3% | 123 | 11.8% | 18.6% | -41 | +9.0pp |
| Older workers and pre-retirees (50 to 59) | 58 | 14.7% | 14.2% | 147 | 14.1% | 15.5% | -89 | +0.6pp |
| Empty nesters and retirees (60 to 69) | 100 | 25.4% | 14.6% | 214 | 20.5% | 13.7% | -114 | +4.9pp |
| Seniors (70 to 84) | 30 | 7.6% | 11.4% | 187 | 17.9% | 9.4% | -157 | -10.3pp |
| Elderly aged (85 and over) | 4 | 1.0% | 2.4% | 19 | 1.8% | 2.7% | -15 | -0.8pp |
| Total | 394 | 100.0% | 100.0% | 1,046 | 100.0% | 100.0% | -652 | 0.0pp |