Population
Five year age groups
About this topic
Five year age groups show the population in standard five-year cohorts from early childhood through older age. Because each band covers the same span of years, the topic gives a clear and comparable view of an area's age structure.
This topic is useful for identifying growth or decline in specific cohorts and for comparing age patterns across places and over time. For service planning, it is often read together with service age groups, household types, and dwelling types.
Interpretation notes
- Age is reported as at Census night, so the counts are a snapshot of the resident age structure at that point in time.
- Because each band covers the same five-year span, this topic is best for exact cohort comparison rather than service-planning life stages.
Related topics
Key insight
In 2021, 30 to 34 year olds was the largest age group among residents in MacDonnell (R), accounting for 9.8% (562 people). This share was higher than Regional NT (9.2%). Since 2016, the biggest change was in 20 to 24 year olds, which decreased by 213 people and 3.1 percentage points.
Section overview
Age structure - Five year age groups
MacDonnell (R) - Total persons (Usual residence)
This table summarises five year age groups for MacDonnell (R) in 2021 for persons, with comparison against Regional NT and change since 2016.
Age structure - Five year age groups snapshot
2021 distribution by category for MacDonnell (R), with comparison markers for Regional NT.
0 to 4
2021 count
438
% of total
7.6%
Change from 2016
+0.7pp
438
7.6%
+0.7pp
5 to 9
2021 count
435
% of total
7.6%
Change from 2016
+0.4pp
435
7.6%
+0.4pp
10 to 14
2021 count
437
% of total
7.6%
Change from 2016
+1.0pp
437
7.6%
+1.0pp
15 to 19
2021 count
387
% of total
6.7%
Change from 2016
-2.8pp
387
6.7%
-2.8pp
20 to 24
2021 count
525
% of total
9.1%
Change from 2016
-3.1pp
525
9.1%
-3.1pp
25 to 29
2021 count
543
% of total
9.4%
Change from 2016
-0.4pp
543
9.4%
-0.4pp
30 to 34
2021 count
562
% of total
9.8%
Change from 2016
+1.0pp
562
9.8%
+1.0pp
35 to 39
2021 count
519
% of total
9.0%
Change from 2016
+2.0pp
519
9.0%
+2.0pp
40 to 44
2021 count
407
% of total
7.1%
Change from 2016
0.0pp
407
7.1%
0.0pp
45 to 49
2021 count
376
% of total
6.5%
Change from 2016
-0.1pp
376
6.5%
-0.1pp
50 to 54
2021 count
336
% of total
5.8%
Change from 2016
+0.7pp
336
5.8%
+0.7pp
55 to 59
2021 count
257
% of total
4.5%
Change from 2016
-0.5pp
257
4.5%
-0.5pp
60 to 64
2021 count
227
% of total
3.9%
Change from 2016
+0.6pp
227
3.9%
+0.6pp
65 to 69
2021 count
130
% of total
2.3%
Change from 2016
+0.2pp
130
2.3%
+0.2pp
70 to 74
2021 count
105
% of total
1.8%
Change from 2016
+0.8pp
105
1.8%
+0.8pp
75 to 79
2021 count
37
% of total
0.6%
Change from 2016
0.0pp
37
0.6%
0.0pp
80 to 84
2021 count
16
% of total
0.3%
Change from 2016
-0.3pp
16
0.3%
-0.3pp
85 and over
2021 count
12
% of total
0.2%
Change from 2016
-0.1pp
12
0.2%
-0.1pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+22
+0.7pp
5 to 9
0
+0.4pp
10 to 14
+42
+1.0pp
15 to 19
-188
-2.8pp
20 to 24
-213
-3.1pp
25 to 29
-50
-0.4pp
30 to 34
+31
+1.0pp
35 to 39
+99
+2.0pp
40 to 44
-20
0.0pp
45 to 49
-24
-0.1pp
50 to 54
+31
+0.7pp
55 to 59
-46
-0.5pp
60 to 64
+31
+0.6pp
65 to 69
+2
+0.2pp
70 to 74
+45
+0.8pp
75 to 79
-2
0.0pp
80 to 84
-21
-0.3pp
85 and over
-7
-0.1pp
Data table
Five year age groups for MacDonnell (R). Age structure - Five year age groups. 2021 and 2016 counts, percentages, and change compared with Regional NT.
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Regional NT% | Count | % | Regional NT% | Count | pp | |
| 0 to 4 | 438 | 7.6% | 7.3% | 416 | 6.9% | 8.3% | +22 | +0.7pp |
| 5 to 9 | 435 | 7.6% | 7.8% | 435 | 7.2% | 8.4% | 0 | +0.4pp |
| 10 to 14 | 437 | 7.6% | 7.5% | 395 | 6.6% | 7.7% | +42 | +1.0pp |
| 15 to 19 | 387 | 6.7% | 7.2% | 575 | 9.5% | 7.2% | -188 | -2.8pp |
| 20 to 24 | 525 | 9.1% | 7.4% | 738 | 12.2% | 7.7% | -213 | -3.1pp |
| 25 to 29 | 543 | 9.4% | 9.0% | 593 | 9.8% | 8.9% | -50 | -0.4pp |
| 30 to 34 | 562 | 9.8% | 9.2% | 531 | 8.8% | 8.6% | +31 | +1.0pp |
| 35 to 39 | 519 | 9.0% | 8.1% | 420 | 7.0% | 7.1% | +99 | +2.0pp |
| 40 to 44 | 407 | 7.1% | 6.6% | 427 | 7.1% | 6.8% | -20 | 0.0pp |
| 45 to 49 | 376 | 6.5% | 6.1% | 400 | 6.6% | 6.9% | -24 | -0.1pp |
| 50 to 54 | 336 | 5.8% | 6.2% | 305 | 5.1% | 6.4% | +31 | +0.7pp |
| 55 to 59 | 257 | 4.5% | 5.4% | 303 | 5.0% | 5.5% | -46 | -0.5pp |
| 60 to 64 | 227 | 3.9% | 4.7% | 196 | 3.3% | 4.4% | +31 | +0.6pp |
| 65 to 69 | 130 | 2.3% | 3.3% | 128 | 2.1% | 2.8% | +2 | +0.2pp |
| 70 to 74 | 105 | 1.8% | 2.1% | 60 | 1.0% | 1.6% | +45 | +0.8pp |
| 75 to 79 | 37 | 0.6% | 1.1% | 39 | 0.6% | 0.9% | -2 | 0.0pp |
| 80 to 84 | 16 | 0.3% | 0.6% | 37 | 0.6% | 0.5% | -21 | -0.3pp |
| 85 and over | 12 | 0.2% | 0.4% | 19 | 0.3% | 0.3% | -7 | -0.1pp |
| Total | 5,748 | 100.0% | 100.0% | 6,029 | 100.0% | 100.0% | -281 | 0.0pp |