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.

Key insight

In 2021, Young workforce (25 to 34) was the most common category among residents in Greenslopes, accounting for 24.1% (1,915 people). This share was higher than Brisbane (C) (16.6%). Since 2016, the biggest change was in Parents and homebuilders (35 to 49), which increased by 178 people and 1 percentage point.

Section overview

Age structure - Service age groups

Greenslopes - Total persons (Usual residence)

This table summarises service age groups for Greenslopes in 2021 for persons, with comparison against Brisbane (C) and change since 2016.

Age structure - Service age groups snapshot

2021 distribution by category for Greenslopes, with comparison markers for Brisbane (C).

Greenslopes
Brisbane (C)

Babies and pre-schoolers (0 to 4)

2021 count

405

% of total

5.1%

Change from 2016

-0.6pp

Primary schoolers (5 to 11)

2021 count

493

% of total

6.2%

Change from 2016

+0.5pp

Secondary schoolers (12 to 17)

2021 count

338

% of total

4.3%

Change from 2016

+0.1pp

Tertiary education and independence (18 to 24)

2021 count

935

% of total

11.8%

Change from 2016

-1.9pp

Young workforce (25 to 34)

2021 count

1,915

% of total

24.1%

Change from 2016

-2.3pp

Parents and homebuilders (35 to 49)

2021 count

1,816

% of total

22.9%

Change from 2016

+1.0pp

Older workers and pre-retirees (50 to 59)

2021 count

850

% of total

10.7%

Change from 2016

+1.5pp

Empty nesters and retirees (60 to 69)

2021 count

647

% of total

8.1%

Change from 2016

+1.1pp

Seniors (70 to 84)

2021 count

466

% of total

5.9%

Change from 2016

+1.0pp

Elderly aged (85 and over)

2021 count

96

% of total

1.2%

Change from 2016

-0.3pp

Data table

Service age groups for Greenslopes. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).

Service age groups for Greenslopes. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Service age groups for Greenslopes. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Category20212016Change
Count%Brisbane (C)%Count%Brisbane (C)%Countpp
Babies and pre-schoolers (0 to 4)4055.1%5.5%4245.7%6.0%-19-0.6pp
Primary schoolers (5 to 11)4936.2%8.4%4235.7%8.3%+70+0.5pp
Secondary schoolers (12 to 17)3384.3%7.0%3114.2%6.7%+27+0.1pp
Tertiary education and independence (18 to 24)93511.8%10.4%1,02713.7%11.5%-92-1.9pp
Young workforce (25 to 34)1,91524.1%16.6%1,98026.4%17.3%-65-2.3pp
Parents and homebuilders (35 to 49)1,81622.9%22.1%1,63821.9%21.5%+178+1.0pp
Older workers and pre-retirees (50 to 59)85010.7%11.8%6909.2%11.6%+160+1.5pp
Empty nesters and retirees (60 to 69)6478.1%8.8%5267.0%8.6%+121+1.1pp
Seniors (70 to 84)4665.9%7.7%3694.9%6.6%+97+1.0pp
Elderly aged (85 and over)961.2%1.8%1161.5%1.8%-20-0.3pp
Total7,941100.0%100.0%7,488100.0%100.0%+4530.0pp