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 Bridgewater (Tas.), accounting for 16.4% (753 people). This share was lower than Brighton (M) (18.7%). Since 2016, the biggest change was in Young workforce (25 to 34), which increased by 224 people and 3.5 percentage points.
Section overview
Age structure - Service age groups
Bridgewater (Tas.) - Total persons (Usual residence)
This table summarises service age groups for Bridgewater (Tas.) in 2021 for persons, with comparison against Brighton (M) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Bridgewater (Tas.), with comparison markers for Brighton (M).
Babies and pre-schoolers (0 to 4)
2021 count
347
% of total
7.6%
Change from 2016
-0.9pp
347
7.6%
-0.9pp
Primary schoolers (5 to 11)
2021 count
542
% of total
11.8%
Change from 2016
-1.4pp
542
11.8%
-1.4pp
Secondary schoolers (12 to 17)
2021 count
414
% of total
9.0%
Change from 2016
-0.3pp
414
9.0%
-0.3pp
Tertiary education and independence (18 to 24)
2021 count
461
% of total
10.0%
Change from 2016
+0.2pp
461
10.0%
+0.2pp
Young workforce (25 to 34)
2021 count
671
% of total
14.6%
Change from 2016
+3.5pp
671
14.6%
+3.5pp
Parents and homebuilders (35 to 49)
2021 count
753
% of total
16.4%
Change from 2016
-0.8pp
753
16.4%
-0.8pp
Older workers and pre-retirees (50 to 59)
2021 count
457
% of total
10.0%
Change from 2016
-0.7pp
457
10.0%
-0.7pp
Empty nesters and retirees (60 to 69)
2021 count
488
% of total
10.6%
Change from 2016
-3.0pp
488
10.6%
-3.0pp
Seniors (70 to 84)
2021 count
376
% of total
8.2%
Change from 2016
+1.4pp
376
8.2%
+1.4pp
Elderly aged (85 and over)
2021 count
20
% of total
0.4%
Change from 2016
-0.2pp
20
0.4%
-0.2pp
Chart view
Age structure - Service age groups change
Absolute change in category counts between 2016 and 2021.
Babies and pre-schoolers (0 to 4)
+4
-0.9pp
Primary schoolers (5 to 11)
+10
-1.4pp
Secondary schoolers (12 to 17)
+38
-0.3pp
Tertiary education and independence (18 to 24)
+64
+0.2pp
Young workforce (25 to 34)
+224
+3.5pp
Parents and homebuilders (35 to 49)
+57
-0.8pp
Older workers and pre-retirees (50 to 59)
+24
-0.7pp
Empty nesters and retirees (60 to 69)
-62
-3.0pp
Seniors (70 to 84)
+102
+1.4pp
Elderly aged (85 and over)
-4
-0.2pp
Data table
Service age groups for Bridgewater (Tas.). Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Brighton (M).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Brighton (M)% | Count | % | Brighton (M)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 347 | 7.6% | 7.1% | 343 | 8.5% | 8.0% | +4 | -0.9pp |
| Primary schoolers (5 to 11) | 542 | 11.8% | 10.9% | 532 | 13.2% | 11.5% | +10 | -1.4pp |
| Secondary schoolers (12 to 17) | 414 | 9.0% | 8.3% | 376 | 9.3% | 8.3% | +38 | -0.3pp |
| Tertiary education and independence (18 to 24) | 461 | 10.0% | 8.9% | 397 | 9.8% | 9.3% | +64 | +0.2pp |
| Young workforce (25 to 34) | 671 | 14.6% | 14.8% | 447 | 11.1% | 13.2% | +224 | +3.5pp |
| Parents and homebuilders (35 to 49) | 753 | 16.4% | 18.7% | 696 | 17.2% | 19.6% | +57 | -0.8pp |
| Older workers and pre-retirees (50 to 59) | 457 | 10.0% | 11.8% | 433 | 10.7% | 12.1% | +24 | -0.7pp |
| Empty nesters and retirees (60 to 69) | 488 | 10.6% | 10.5% | 550 | 13.6% | 10.8% | -62 | -3.0pp |
| Seniors (70 to 84) | 376 | 8.2% | 8.0% | 274 | 6.8% | 6.3% | +102 | +1.4pp |
| Elderly aged (85 and over) | 20 | 0.4% | 0.9% | 24 | 0.6% | 0.8% | -4 | -0.2pp |
| Total | 4,592 | 100.0% | 100.0% | 4,045 | 100.0% | 100.0% | +547 | 0.0pp |