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, Empty nesters and retirees (60 to 69) was the most common category among residents in Coralville, accounting for 17.3% (29 people). This share was lower than Mid-Coast (A) (17.9%). Since 2016, the biggest change was in Seniors (70 to 84), which increased by 17 people and 8.9 percentage points.
Section overview
Age structure - Service age groups
Coralville - Total persons (Usual residence)
This table summarises service age groups for Coralville in 2021 for persons, with comparison against Mid-Coast (A) and change since 2016.
Age structure - Service age groups snapshot
2021 distribution by category for Coralville, with comparison markers for Mid-Coast (A).
Babies and pre-schoolers (0 to 4)
2021 count
3
% of total
1.8%
Change from 2016
-0.3pp
3
1.8%
-0.3pp
Primary schoolers (5 to 11)
2021 count
13
% of total
7.7%
Change from 2016
+3.4pp
13
7.7%
+3.4pp
Secondary schoolers (12 to 17)
2021 count
9
% of total
5.4%
Change from 2016
-6.7pp
9
5.4%
-6.7pp
Tertiary education and independence (18 to 24)
2021 count
7
% of total
4.2%
Change from 2016
+1.4pp
7
4.2%
+1.4pp
Young workforce (25 to 34)
2021 count
10
% of total
6.0%
Change from 2016
+3.2pp
10
6.0%
+3.2pp
Parents and homebuilders (35 to 49)
2021 count
19
% of total
11.3%
Change from 2016
-7.8pp
19
11.3%
-7.8pp
Older workers and pre-retirees (50 to 59)
2021 count
26
% of total
15.5%
Change from 2016
-10.7pp
26
15.5%
-10.7pp
Empty nesters and retirees (60 to 69)
2021 count
29
% of total
17.3%
Change from 2016
+4.5pp
29
17.3%
+4.5pp
Seniors (70 to 84)
2021 count
28
% of total
16.7%
Change from 2016
+8.9pp
28
16.7%
+8.9pp
Elderly aged (85 and over)
2021 count
5
% of total
3.0%
Change from 2016
+0.9pp
5
3.0%
+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)
0
-0.3pp
Primary schoolers (5 to 11)
+7
+3.4pp
Secondary schoolers (12 to 17)
-8
-6.7pp
Tertiary education and independence (18 to 24)
+3
+1.4pp
Young workforce (25 to 34)
+6
+3.2pp
Parents and homebuilders (35 to 49)
-8
-7.8pp
Older workers and pre-retirees (50 to 59)
-11
-10.7pp
Empty nesters and retirees (60 to 69)
+11
+4.5pp
Seniors (70 to 84)
+17
+8.9pp
Elderly aged (85 and over)
+2
+0.9pp
Data table
Service age groups for Coralville. Age structure - Service age groups. 2021 and 2016 counts, percentages, and change compared with Mid-Coast (A).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Mid-Coast (A)% | Count | % | Mid-Coast (A)% | Count | pp | |
| Babies and pre-schoolers (0 to 4) | 3 | 1.8% | 4.1% | 3 | 2.1% | 4.6% | 0 | -0.3pp |
| Primary schoolers (5 to 11) | 13 | 7.7% | 7.1% | 6 | 4.3% | 7.6% | +7 | +3.4pp |
| Secondary schoolers (12 to 17) | 9 | 5.4% | 6.5% | 17 | 12.1% | 6.8% | -8 | -6.7pp |
| Tertiary education and independence (18 to 24) | 7 | 4.2% | 5.3% | 4 | 2.8% | 5.6% | +3 | +1.4pp |
| Young workforce (25 to 34) | 10 | 6.0% | 7.9% | 4 | 2.8% | 7.4% | +6 | +3.2pp |
| Parents and homebuilders (35 to 49) | 19 | 11.3% | 14.0% | 27 | 19.1% | 15.0% | -8 | -7.8pp |
| Older workers and pre-retirees (50 to 59) | 26 | 15.5% | 13.2% | 37 | 26.2% | 14.5% | -11 | -10.7pp |
| Empty nesters and retirees (60 to 69) | 29 | 17.3% | 17.9% | 18 | 12.8% | 17.7% | +11 | +4.5pp |
| Seniors (70 to 84) | 28 | 16.7% | 20.1% | 11 | 7.8% | 17.0% | +17 | +8.9pp |
| Elderly aged (85 and over) | 5 | 3.0% | 4.0% | 3 | 2.1% | 3.8% | +2 | +0.9pp |
| Total | 168 | 100.0% | 100.0% | 141 | 100.0% | 100.0% | +27 | 0.0pp |