Most populated postcodes

The 20 postcodes in New South Wales with the most residents, and the 20 with the fewest, out of 569 with a published figure.

	Place	State	Postcode	Residents
1	Casula	New South Wales	2170	114,479
2	Greystanes	New South Wales	2145	87,531
3	Englorie Park	New South Wales	2560	82,543
4	North Kellyville	New South Wales	2155	75,699
5	Glenworth Valley	New South Wales	2250	71,168
6	Blacktown	New South Wales	2148	67,483
7	Lemon Tree	New South Wales	2259	66,236
8	Belimbla Park	New South Wales	2570	63,663
9	Crestwood	New South Wales	2153	62,610
10	Bomen	New South Wales	2650	61,511
11	Mount Druitt	New South Wales	2770	61,494
12	Chittaway Bay	New South Wales	2261	55,129
13	Cambridge Park	New South Wales	2747	54,397
14	Canley Vale	New South Wales	2166	54,184
15	Woolomin	New South Wales	2340	52,436
16	Fernbank Creek	New South Wales	2444	51,117
17	St Johns Park	New South Wales	2176	50,022
18	Penrith	New South Wales	2750	49,204
19	Windera	New South Wales	2800	48,283
20	Condell Park	New South Wales	2200	48,003

Least populated postcodes

	Place	State	Postcode	Residents
1	Boomi	New South Wales	2405	500
2	Bredbo	New South Wales	2626	515
3	Long Plain	New South Wales	2629	534
4	Illalong Creek	New South Wales	2584	550
5	Lansdale	New South Wales	2873	560
6	Copi Hollow	New South Wales	2879	577
7	North Yeoval	New South Wales	2868	579
8	Singleton Military Area	New South Wales	2331	581
9	Moulamein	New South Wales	2733	598
10	Jennings	New South Wales	4383	607
11	Captains Flat	New South Wales	2623	611
12	Milguy	New South Wales	2399	623
13	Maryland	New South Wales	4377	625
14	Watsons Creek	New South Wales	2355	627
15	Jincumbilly	New South Wales	2631	629
16	Collarenebri	New South Wales	2833	634
17	Loombah	New South Wales	2867	636
18	Duri	New South Wales	2344	674
19	North Tumbulgum	New South Wales	2490	690
20	Weemelah	New South Wales	2406	705

Most populated 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.