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, 25 to 29 year olds was the largest age group among residents in Central Desert (R), accounting for 9.3% (333 people). This share was higher than Regional NT (9%). Since 2016, the biggest change was in 5 to 9 year olds, which decreased by 88 people and 2.2 percentage points.
Section overview
Age structure - Five year age groups
Central Desert (R) - Total persons (Usual residence)
This table summarises five year age groups for Central Desert (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 Central Desert (R), with comparison markers for Regional NT.
0 to 4
2021 count
319
% of total
8.9%
Change from 2016
+0.3pp
319
8.9%
+0.3pp
5 to 9
2021 count
307
% of total
8.5%
Change from 2016
-2.2pp
307
8.5%
-2.2pp
10 to 14
2021 count
318
% of total
8.9%
Change from 2016
-0.9pp
318
8.9%
-0.9pp
15 to 19
2021 count
302
% of total
8.4%
Change from 2016
+1.5pp
302
8.4%
+1.5pp
20 to 24
2021 count
318
% of total
8.9%
Change from 2016
+0.5pp
318
8.9%
+0.5pp
25 to 29
2021 count
333
% of total
9.3%
Change from 2016
+1.4pp
333
9.3%
+1.4pp
30 to 34
2021 count
278
% of total
7.7%
Change from 2016
-1.2pp
278
7.7%
-1.2pp
35 to 39
2021 count
241
% of total
6.7%
Change from 2016
-0.5pp
241
6.7%
-0.5pp
40 to 44
2021 count
242
% of total
6.7%
Change from 2016
-0.3pp
242
6.7%
-0.3pp
45 to 49
2021 count
221
% of total
6.2%
Change from 2016
+0.1pp
221
6.2%
+0.1pp
50 to 54
2021 count
170
% of total
4.7%
Change from 2016
-0.7pp
170
4.7%
-0.7pp
55 to 59
2021 count
168
% of total
4.7%
Change from 2016
+0.8pp
168
4.7%
+0.8pp
60 to 64
2021 count
135
% of total
3.8%
Change from 2016
+0.1pp
135
3.8%
+0.1pp
65 to 69
2021 count
78
% of total
2.2%
Change from 2016
+0.6pp
78
2.2%
+0.6pp
70 to 74
2021 count
65
% of total
1.8%
Change from 2016
+0.5pp
65
1.8%
+0.5pp
75 to 79
2021 count
30
% of total
0.8%
Change from 2016
+0.2pp
30
0.8%
+0.2pp
80 to 84
2021 count
22
% of total
0.6%
Change from 2016
-0.2pp
22
0.6%
-0.2pp
85 and over
2021 count
19
% of total
0.5%
Change from 2016
+0.2pp
19
0.5%
+0.2pp
Chart view
Age structure - Five year age groups change
Absolute change in category counts between 2016 and 2021.
0 to 4
+2
+0.3pp
5 to 9
-88
-2.2pp
10 to 14
-43
-0.9pp
15 to 19
+47
+1.5pp
20 to 24
+10
+0.5pp
25 to 29
+41
+1.4pp
30 to 34
-48
-1.2pp
35 to 39
-25
-0.5pp
40 to 44
-17
-0.3pp
45 to 49
-3
+0.1pp
50 to 54
-30
-0.7pp
55 to 59
+24
+0.8pp
60 to 64
0
+0.1pp
65 to 69
+21
+0.6pp
70 to 74
+18
+0.5pp
75 to 79
+8
+0.2pp
80 to 84
-7
-0.2pp
85 and over
+7
+0.2pp
Data table
Five year age groups for Central Desert (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 | 319 | 8.9% | 7.3% | 317 | 8.6% | 8.3% | +2 | +0.3pp |
| 5 to 9 | 307 | 8.5% | 7.8% | 395 | 10.7% | 8.4% | -88 | -2.2pp |
| 10 to 14 | 318 | 8.9% | 7.5% | 361 | 9.8% | 7.7% | -43 | -0.9pp |
| 15 to 19 | 302 | 8.4% | 7.2% | 255 | 6.9% | 7.2% | +47 | +1.5pp |
| 20 to 24 | 318 | 8.9% | 7.4% | 308 | 8.4% | 7.7% | +10 | +0.5pp |
| 25 to 29 | 333 | 9.3% | 9.0% | 292 | 7.9% | 8.9% | +41 | +1.4pp |
| 30 to 34 | 278 | 7.7% | 9.2% | 326 | 8.9% | 8.6% | -48 | -1.2pp |
| 35 to 39 | 241 | 6.7% | 8.1% | 266 | 7.2% | 7.1% | -25 | -0.5pp |
| 40 to 44 | 242 | 6.7% | 6.6% | 259 | 7.0% | 6.8% | -17 | -0.3pp |
| 45 to 49 | 221 | 6.2% | 6.1% | 224 | 6.1% | 6.9% | -3 | +0.1pp |
| 50 to 54 | 170 | 4.7% | 6.2% | 200 | 5.4% | 6.4% | -30 | -0.7pp |
| 55 to 59 | 168 | 4.7% | 5.4% | 144 | 3.9% | 5.5% | +24 | +0.8pp |
| 60 to 64 | 135 | 3.8% | 4.7% | 135 | 3.7% | 4.4% | 0 | +0.1pp |
| 65 to 69 | 78 | 2.2% | 3.3% | 57 | 1.6% | 2.8% | +21 | +0.6pp |
| 70 to 74 | 65 | 1.8% | 2.1% | 47 | 1.3% | 1.6% | +18 | +0.5pp |
| 75 to 79 | 30 | 0.8% | 1.1% | 22 | 0.6% | 0.9% | +8 | +0.2pp |
| 80 to 84 | 22 | 0.6% | 0.6% | 29 | 0.8% | 0.5% | -7 | -0.2pp |
| 85 and over | 19 | 0.5% | 0.4% | 12 | 0.3% | 0.3% | +7 | +0.2pp |
| Total | 3,591 | 100.0% | 100.0% | 3,677 | 100.0% | 100.0% | -86 | 0.0pp |