Oldest postcodes

The 20 postcodes in New South Wales with the highest median age, and the 20 with the lowest, out of 569 with a published figure.

	Place	State	Postcode	Median age
1	Crowdy Head	New South Wales	2427	64.0
2	Woody Head	New South Wales	2466	62.0
3	Diamond Head	New South Wales	2443	61.0
4	Bundanoon	New South Wales	2578	59.0
5	Corunna	New South Wales	2546	59.0
6	Tocumwal	New South Wales	2714	59.0
7	Bayview	New South Wales	2104	58.0
8	Long Plain	New South Wales	2629	58.0
9	Palm Beach	New South Wales	2108	58.0
10	Smiths Lake	New South Wales	2428	58.0
11	South West Rocks	New South Wales	2431	58.0
12	Bellawongarah	New South Wales	2535	57.0
13	Emmaville	New South Wales	2371	57.0
14	Pallal	New South Wales	2404	57.0
15	Salamander Bay	New South Wales	2317	57.0
16	Angourie	New South Wales	2464	56.0
17	Billyrimba	New South Wales	2372	56.0
18	Jennings	New South Wales	4383	56.0
19	Kangaloon	New South Wales	2576	56.0
20	Noorong	New South Wales	2732	56.0

Youngest postcodes

	Place	State	Postcode	Median age
1	Callaghan	New South Wales	2308	20.0
2	Singleton Military Area	New South Wales	2331	21.0
3	Wagga Wagga Raaf	New South Wales	2651	25.0
4	Yanco	New South Wales	2703	25.0
5	Claymore	New South Wales	2559	28.0
6	Golden Grove	New South Wales	2008	28.0
7	Broadway	New South Wales	2007	30.0
8	Sydney International Airport	New South Wales	2020	30.0
9	Auburn	New South Wales	2144	31.0
10	Blaxcell	New South Wales	2142	31.0
11	Edmondson Park	New South Wales	2174	31.0
12	Homebush South	New South Wales	2140	31.0
13	Rossmore	New South Wales	2557	31.0
14	Schofields	New South Wales	2762	31.0
15	Burwood	New South Wales	2134	32.0
16	Haymarket	New South Wales	2000	32.0
17	Kensington	New South Wales	2033	32.0
18	Leppington	New South Wales	2179	32.0
19	Old Guildford	New South Wales	2161	32.0
20	Parramatta Westfield	New South Wales	2150	32.0

Oldest postcodes — All of Australia

Places with fewer than 500 residents are excluded: a figure drawn from a handful of people carries more uncertainty than the differences being ranked.