Australian Capital Territory suburbs by median age

Ranked by median age, from ABS 2021 Census. Highest and lowest suburbs, each linking to its full profile.

Median age of usual residents at the 2021 Census, for suburbs with a population of at least 500.

See the national ranking for median age.

Oldest by median age

#	Suburb	State	Postcode	Median age
1	Symonston	ACT	2609	55
2	O'Malley	ACT	2606	51
3	Yarralumla	ACT	2600	50
4	Isaacs	ACT	2607	49
5	Chapman	ACT	2611	47
6	Forrest	ACT	2603	47
7	Stirling	ACT	2611	46
8	Deakin	ACT	2600	45
9	Nicholls	ACT	2913	44
10	Monash	ACT	2904	43
11	Farrer	ACT	2607	43
12	Hughes	ACT	2605	43
13	Fadden	ACT	2904	43
14	Mckellar	ACT	2617	43
15	Pearce	ACT	2607	43
16	Ainslie	ACT	2602	42
17	Weston	ACT	2611	42
18	Red Hill	ACT	2603	42
19	Hawker	ACT	2614	42
20	Cook	ACT	2614	42
21	Aranda	ACT	2614	42
22	Garran	ACT	2605	41
23	Holder	ACT	2611	41
24	Weetangera	ACT	2614	41
25	Fraser	ACT	2615	41

Youngest by median age

#	Suburb	State	Postcode	Median age
1	Acton	ACT	2601	19
2	City	ACT	2601	27
3	Campbell	ACT	2612	28
4	Lawson	ACT	2617	28
5	Bruce	ACT	2617	29
6	Belconnen	ACT	2617	30
7	Franklin	ACT	2913	30
8	Bonner	ACT	2914	30
9	Braddon	ACT	2612	30
10	Moncrieff	ACT	2914	30
11	Coombs	ACT	2611	30
12	Dickson	ACT	2602	30
13	Taylor	ACT	2913	30
14	Strathnairn	ACT	2615	30
15	Jacka	ACT	2914	30
16	Gungahlin	ACT	2912	31
17	Harrison	ACT	2914	31
18	Turner	ACT	2612	31
19	Denman Prospect	ACT	2611	31
20	Throsby	ACT	2914	31
21	Casey	ACT	2913	32
22	Phillip	ACT	2606	32
23	Wright	ACT	2611	32
24	Ngunnawal	ACT	2913	34
25	Macgregor	ACT	2615	34

Ranked from 104 eligible suburbs that met the population and data thresholds above. Each suburb links to its full demographic profile.

These tables draw on ABS 2021 Census open data and are recomputed each time the site rebuilds. Figures describe whole suburbs, not individual households, and are a snapshot of the 2021 Census period. For the methodology behind every number, see the data notes.

Page last reviewed June 2026. Source: ABS 2021 Census. All suburb rankings.