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 Blyth, accounting for 18.7% (97 people). This share was higher than Wakefield (DC) (16.5%). Since 2016, the biggest change was in Empty nesters and retirees (60 to 69), which increased by 37 people and 7.1 percentage points.
Section overview
Age structure - Service age groups
Blyth - Total persons (Usual residence)
This table summarises service age groups for Blyth in 2021 for persons, with comparison against Wakefield (DC) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Blyth, with comparison markers for Wakefield (DC).
Babies and pre-schoolers (0 to 4)
2021 count
31
% of total
6.0%
Change from 2016
-0.8pp
31
6.0%
-0.8pp
Primary schoolers (5 to 11)
2021 count
40
% of total
7.7%
Change from 2016
-6.4pp
40
7.7%
-6.4pp
Secondary schoolers (12 to 17)
2021 count
45
% of total
8.7%
Change from 2016
+0.8pp
45
8.7%
+0.8pp
Tertiary education and independence (18 to 24)
2021 count
53
% of total
10.2%
Change from 2016
+2.3pp
53
10.2%
+2.3pp
Young workforce (25 to 34)
2021 count
48
% of total
9.3%
Change from 2016
-1.7pp
48
9.3%
-1.7pp
Parents and homebuilders (35 to 49)
2021 count
97
% of total
18.7%
Change from 2016
+2.3pp
97
18.7%
+2.3pp
Older workers and pre-retirees (50 to 59)
2021 count
81
% of total
15.6%
Change from 2016
+3.4pp
81
15.6%
+3.4pp
Empty nesters and retirees (60 to 69)
2021 count
81
% of total
15.6%
Change from 2016
+7.1pp
81
15.6%
+7.1pp
Seniors (70 to 84)
2021 count
53
% of total
10.2%
Change from 2016
+0.5pp
53
10.2%
+0.5pp
Elderly aged (85 and over)
2021 count
8
% of total
1.5%
Change from 2016
+0.7pp
8
1.5%
+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)
-4
-0.8pp
Primary schoolers (5 to 11)
-33
-6.4pp
Secondary schoolers (12 to 17)
+4
+0.8pp
Tertiary education and independence (18 to 24)
+12
+2.3pp
Young workforce (25 to 34)
-9
-1.7pp
Parents and homebuilders (35 to 49)
+12
+2.3pp
Older workers and pre-retirees (50 to 59)
+18
+3.4pp
Empty nesters and retirees (60 to 69)
+37
+7.1pp
Seniors (70 to 84)
+3
+0.5pp
Elderly aged (85 and over)
+4
+0.7pp
Data table
Service age groups for Blyth. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Wakefield (DC).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Wakefield (DC)% | Count | % | Wakefield (DC)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 31 | 6.0% | 5.5% | 35 | 6.8% | 6.8% | -4 | -0.8pp |
| Primary schoolers (5 to 11) | 40 | 7.7% | 9.2% | 73 | 14.1% | 9.0% | -33 | -6.4pp |
| Secondary schoolers (12 to 17) | 45 | 8.7% | 7.9% | 41 | 7.9% | 8.0% | +4 | +0.8pp |
| Tertiary education and independence (18 to 24) | 53 | 10.2% | 6.8% | 41 | 7.9% | 6.4% | +12 | +2.3pp |
| Young workforce (25 to 34) | 48 | 9.3% | 9.9% | 57 | 11.0% | 10.1% | -9 | -1.7pp |
| Parents and homebuilders (35 to 49) | 97 | 18.7% | 16.5% | 85 | 16.4% | 17.7% | +12 | +2.3pp |
| Older workers and pre-retirees (50 to 59) | 81 | 15.6% | 14.2% | 63 | 12.2% | 14.2% | +18 | +3.4pp |
| Empty nesters and retirees (60 to 69) | 81 | 15.6% | 15.0% | 44 | 8.5% | 14.3% | +37 | +7.1pp |
| Seniors (70 to 84) | 53 | 10.2% | 12.1% | 50 | 9.7% | 10.7% | +3 | +0.5pp |
| Elderly aged (85 and over) | 8 | 1.5% | 2.7% | 4 | 0.8% | 3.0% | +4 | +0.7pp |
| Total | 518 | 100.0% | 100.0% | 518 | 100.0% | 100.0% | 0 | 0.0pp |