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 Augusta-Margaret River (S), accounting for 23.8% (3,995 people). This share was higher than Regional WA (19.9%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 601 people.
Section overview
Age structure - Service age groups
Augusta-Margaret River (S) - Total persons (Usual residence)
This table summarises service age groups for Augusta-Margaret River (S) in 2021 for persons, with comparison against Regional WA and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Augusta-Margaret River (S), with comparison markers for Regional WA.
Babies and pre-schoolers (0 to 4)
2021 count
987
% of total
5.9%
Change from 2016
-1.3pp
987
5.9%
-1.3pp
Primary schoolers (5 to 11)
2021 count
1,738
% of total
10.4%
Change from 2016
-0.1pp
1,738
10.4%
-0.1pp
Secondary schoolers (12 to 17)
2021 count
1,286
% of total
7.7%
Change from 2016
+0.1pp
1,286
7.7%
+0.1pp
Tertiary education and independence (18 to 24)
2021 count
689
% of total
4.1%
Change from 2016
-0.4pp
689
4.1%
-0.4pp
Young workforce (25 to 34)
2021 count
1,728
% of total
10.3%
Change from 2016
-2.1pp
1,728
10.3%
-2.1pp
Parents and homebuilders (35 to 49)
2021 count
3,995
% of total
23.8%
Change from 2016
0.0pp
3,995
23.8%
0.0pp
Older workers and pre-retirees (50 to 59)
2021 count
2,244
% of total
13.4%
Change from 2016
+0.1pp
2,244
13.4%
+0.1pp
Empty nesters and retirees (60 to 69)
2021 count
2,217
% of total
13.2%
Change from 2016
+1.5pp
2,217
13.2%
+1.5pp
Seniors (70 to 84)
2021 count
1,621
% of total
9.7%
Change from 2016
+2.2pp
1,621
9.7%
+2.2pp
Elderly aged (85 and over)
2021 count
285
% of total
1.7%
Change from 2016
+0.1pp
285
1.7%
+0.1pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
-38
-1.3pp
Primary schoolers (5 to 11)
+248
-0.1pp
Secondary schoolers (12 to 17)
+201
+0.1pp
Tertiary education and independence (18 to 24)
+51
-0.4pp
Young workforce (25 to 34)
-34
-2.1pp
Parents and homebuilders (35 to 49)
+601
0.0pp
Older workers and pre-retirees (50 to 59)
+353
+0.1pp
Empty nesters and retirees (60 to 69)
+543
+1.5pp
Seniors (70 to 84)
+557
+2.2pp
Elderly aged (85 and over)
+60
+0.1pp
Data table
Service age groups for Augusta-Margaret River (S). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Regional WA.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional WA% | Count | % | Regional WA% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 987 | 5.9% | 6.0% | 1,025 | 7.2% | 6.6% | -38 | -1.3pp |
| Primary schoolers (5 to 11) | 1,738 | 10.4% | 9.5% | 1,490 | 10.5% | 9.8% | +248 | -0.1pp |
| Secondary schoolers (12 to 17) | 1,286 | 7.7% | 7.6% | 1,085 | 7.6% | 7.4% | +201 | +0.1pp |
| Tertiary education and independence (18 to 24) | 689 | 4.1% | 6.7% | 638 | 4.5% | 7.0% | +51 | -0.4pp |
| Young workforce (25 to 34) | 1,728 | 10.3% | 12.5% | 1,762 | 12.4% | 13.6% | -34 | -2.1pp |
| Parents and homebuilders (35 to 49) | 3,995 | 23.8% | 19.9% | 3,394 | 23.8% | 20.8% | +601 | 0.0pp |
| Older workers and pre-retirees (50 to 59) | 2,244 | 13.4% | 13.7% | 1,891 | 13.3% | 14.1% | +353 | +0.1pp |
| Empty nesters and retirees (60 to 69) | 2,217 | 13.2% | 12.4% | 1,674 | 11.7% | 11.3% | +543 | +1.5pp |
| Seniors (70 to 84) | 1,621 | 9.7% | 10.1% | 1,064 | 7.5% | 7.8% | +557 | +2.2pp |
| Elderly aged (85 and over) | 285 | 1.7% | 1.7% | 225 | 1.6% | 1.5% | +60 | +0.1pp |
| Total | 16,791 | 100.0% | 100.0% | 14,258 | 100.0% | 100.0% | +2,533 | 0.0pp |