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 Monjingup, accounting for 22.1% (87 people). This share was higher than Esperance (S) (14.1%). Since 2016, the biggest change was in Secondary schoolers (12 to 17), which decreased by 48 people and 11.1 percentage points.
Section overview
Age structure - Service age groups
Monjingup - Total persons (Usual residence)
This table summarises service age groups for Monjingup in 2021 for persons, with comparison against Esperance (S) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Monjingup, with comparison markers for Esperance (S).
Babies and pre-schoolers (0 to 4)
2021 count
29
% of total
7.4%
Change from 2016
+4.6pp
29
7.4%
+4.6pp
Primary schoolers (5 to 11)
2021 count
41
% of total
10.4%
Change from 2016
+4.0pp
41
10.4%
+4.0pp
Secondary schoolers (12 to 17)
2021 count
13
% of total
3.3%
Change from 2016
-11.1pp
13
3.3%
-11.1pp
Tertiary education and independence (18 to 24)
2021 count
25
% of total
6.3%
Change from 2016
+0.4pp
25
6.3%
+0.4pp
Young workforce (25 to 34)
2021 count
24
% of total
6.1%
Change from 2016
0.0pp
24
6.1%
0.0pp
Parents and homebuilders (35 to 49)
2021 count
65
% of total
16.5%
Change from 2016
-4.5pp
65
16.5%
-4.5pp
Older workers and pre-retirees (50 to 59)
2021 count
87
% of total
22.1%
Change from 2016
+2.3pp
87
22.1%
+2.3pp
Empty nesters and retirees (60 to 69)
2021 count
67
% of total
17.0%
Change from 2016
+4.5pp
67
17.0%
+4.5pp
Seniors (70 to 84)
2021 count
31
% of total
7.9%
Change from 2016
-1.1pp
31
7.9%
-1.1pp
Elderly aged (85 and over)
2021 count
0
% of total
0.0%
Change from 2016
-0.9pp
0
0.0%
-0.9pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+17
+4.6pp
Primary schoolers (5 to 11)
+14
+4.0pp
Secondary schoolers (12 to 17)
-48
-11.1pp
Tertiary education and independence (18 to 24)
0
+0.4pp
Young workforce (25 to 34)
-2
0.0pp
Parents and homebuilders (35 to 49)
-24
-4.5pp
Older workers and pre-retirees (50 to 59)
+3
+2.3pp
Empty nesters and retirees (60 to 69)
+14
+4.5pp
Seniors (70 to 84)
-7
-1.1pp
Elderly aged (85 and over)
-4
-0.9pp
Data table
Service age groups for Monjingup. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Esperance (S).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Esperance (S)% | Count | % | Esperance (S)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 29 | 7.4% | 5.9% | 12 | 2.8% | 6.4% | +17 | +4.6pp |
| Primary schoolers (5 to 11) | 41 | 10.4% | 9.4% | 27 | 6.4% | 9.8% | +14 | +4.0pp |
| Secondary schoolers (12 to 17) | 13 | 3.3% | 8.3% | 61 | 14.4% | 9.1% | -48 | -11.1pp |
| Tertiary education and independence (18 to 24) | 25 | 6.3% | 6.7% | 25 | 5.9% | 7.3% | 0 | +0.4pp |
| Young workforce (25 to 34) | 24 | 6.1% | 11.2% | 26 | 6.1% | 11.4% | -2 | 0.0pp |
| Parents and homebuilders (35 to 49) | 65 | 16.5% | 18.4% | 89 | 21.0% | 19.3% | -24 | -4.5pp |
| Older workers and pre-retirees (50 to 59) | 87 | 22.1% | 14.1% | 84 | 19.8% | 14.5% | +3 | +2.3pp |
| Empty nesters and retirees (60 to 69) | 67 | 17.0% | 12.1% | 53 | 12.5% | 11.1% | +14 | +4.5pp |
| Seniors (70 to 84) | 31 | 7.9% | 11.9% | 38 | 9.0% | 9.2% | -7 | -1.1pp |
| Elderly aged (85 and over) | 0 | 0.0% | 2.1% | 4 | 0.9% | 1.9% | -4 | -0.9pp |
| Total | 394 | 100.0% | 100.0% | 424 | 100.0% | 100.0% | -30 | 0.0pp |