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, Seniors (70 to 84) was the most common category among residents in Koorainghat, accounting for 22.7% (40 people). This share was higher than Mid-Coast (A) (20.1%). Since 2016, the biggest change was in Young workforce (25 to 34), which decreased by 10 people and 5.1 percentage points.
Section overview
Age structure - Service age groups
Koorainghat - Total persons (Usual residence)
This table summarises service age groups for Koorainghat in 2021 for persons, with comparison against Mid-Coast (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Koorainghat, with comparison markers for Mid-Coast (A).
Babies and pre-schoolers (0 to 4)
2021 count
6
% of total
3.4%
Change from 2016
-0.2pp
6
3.4%
-0.2pp
Primary schoolers (5 to 11)
2021 count
14
% of total
8.0%
Change from 2016
+4.9pp
14
8.0%
+4.9pp
Secondary schoolers (12 to 17)
2021 count
16
% of total
9.1%
Change from 2016
+2.8pp
16
9.1%
+2.8pp
Tertiary education and independence (18 to 24)
2021 count
4
% of total
2.3%
Change from 2016
-4.0pp
4
2.3%
-4.0pp
Young workforce (25 to 34)
2021 count
3
% of total
1.7%
Change from 2016
-5.1pp
3
1.7%
-5.1pp
Parents and homebuilders (35 to 49)
2021 count
22
% of total
12.5%
Change from 2016
-1.0pp
22
12.5%
-1.0pp
Older workers and pre-retirees (50 to 59)
2021 count
20
% of total
11.4%
Change from 2016
-1.6pp
20
11.4%
-1.6pp
Empty nesters and retirees (60 to 69)
2021 count
31
% of total
17.6%
Change from 2016
+3.0pp
31
17.6%
+3.0pp
Seniors (70 to 84)
2021 count
40
% of total
22.7%
Change from 2016
+5.5pp
40
22.7%
+5.5pp
Elderly aged (85 and over)
2021 count
5
% of total
2.8%
Change from 2016
+0.7pp
5
2.8%
+0.7pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-1
-0.2pp
Primary schoolers (5 to 11)
+8
+4.9pp
Secondary schoolers (12 to 17)
+4
+2.8pp
Tertiary education and independence (18 to 24)
-8
-4.0pp
Young workforce (25 to 34)
-10
-5.1pp
Parents and homebuilders (35 to 49)
-4
-1.0pp
Older workers and pre-retirees (50 to 59)
-5
-1.6pp
Empty nesters and retirees (60 to 69)
+3
+3.0pp
Seniors (70 to 84)
+7
+5.5pp
Elderly aged (85 and over)
+1
+0.7pp
Data table
Service age groups for Koorainghat. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mid-Coast (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mid-Coast (A)% | Count | % | Mid-Coast (A)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 6 | 3.4% | 4.1% | 7 | 3.6% | 4.6% | -1 | -0.2pp |
| Primary schoolers (5 to 11) | 14 | 8.0% | 7.1% | 6 | 3.1% | 7.6% | +8 | +4.9pp |
| Secondary schoolers (12 to 17) | 16 | 9.1% | 6.5% | 12 | 6.3% | 6.8% | +4 | +2.8pp |
| Tertiary education and independence (18 to 24) | 4 | 2.3% | 5.3% | 12 | 6.3% | 5.6% | -8 | -4.0pp |
| Young workforce (25 to 34) | 3 | 1.7% | 7.9% | 13 | 6.8% | 7.4% | -10 | -5.1pp |
| Parents and homebuilders (35 to 49) | 22 | 12.5% | 14.0% | 26 | 13.5% | 15.0% | -4 | -1.0pp |
| Older workers and pre-retirees (50 to 59) | 20 | 11.4% | 13.2% | 25 | 13.0% | 14.5% | -5 | -1.6pp |
| Empty nesters and retirees (60 to 69) | 31 | 17.6% | 17.9% | 28 | 14.6% | 17.7% | +3 | +3.0pp |
| Seniors (70 to 84) | 40 | 22.7% | 20.1% | 33 | 17.2% | 17.0% | +7 | +5.5pp |
| Elderly aged (85 and over) | 5 | 2.8% | 4.0% | 4 | 2.1% | 3.8% | +1 | +0.7pp |
| Total | 176 | 100.0% | 100.0% | 192 | 100.0% | 100.0% | -16 | 0.0pp |