Worst Internet Suburbs in Adelaide (Bottom 50)

These are the 50 lowest-scoring suburbs for internet quality within 50km of Adelaide's CBD. Common issues include older NBN technology types, limited fibre coverage, and lower household connectivity rates. If you live in one of these suburbs, check whether an NBN technology upgrade is available at your address.

50 suburbs ranked · Data updated March 2026

Rank	Suburb	State	Tech Type	Score	Grade	Speed Range	Premises
1	Kuitpo Colony	SA	Satellite	1.5/10	D	12-25 Mbps	18
2	Cherryville	SA	Satellite	1.5/10	D	12-25 Mbps	56
3	Blackfellows Creek	SA	Satellite	2/10	D	12-25 Mbps	16
4	Montarra	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	11
5	Millbrook	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	12
6	Kyeema	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	14
7	Dorset Vale	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	15
8	Woolsheds	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	16
9	Salem	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	17
10	St Ives	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	18
11	Fischer	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	25
12	Kingsford	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	29
13	Bletchley	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	33
14	Barossa Goldfields	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	34
15	Mcharg Creek	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	38
16	Green Hills Range	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	39
17	Red Creek	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	39
18	Gemmells	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	41
19	Kangaroo Flat	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	44
20	Willunga Hill	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	47
21	Chapel Hill	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	49
22	Sampson Flat	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	51
23	Sandergrove	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	58
24	Buckland Park	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	62
25	Yundi	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	66
26	The Range	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	67
27	Lower Hermitage	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	73
28	Reeves Plains	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	73
29	Flaxley	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	74
30	Bull Creek	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	78
31	St Kilda	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	79
32	Paechtown	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	80
33	Upper Hermitage	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	86
34	Hartley	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	87
35	Rosedale	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	87
36	Paris Creek	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	90
37	Cromer	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	92
38	Middle Beach	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	92
39	Yattalunga	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	106
40	Nangkita	SA		2.5/10	D		107
41	Korunye	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	110
42	Kuitpo	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	110
43	Woodchester	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	110
44	Redbanks	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	111
45	Bugle Ranges	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	121
46	Willyaroo	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	143
47	Whites Valley	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	148
48	Ashbourne	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	154
49	Blewitt Springs	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	155
50	Uleybury	SA	Fixed Wireless	2.5/10	D	25-75 Mbps	155

About this ranking

Rankings are based on PickNBN's composite internet quality score, which factors in NBN technology type, fibre coverage percentage, FTTP upgrade status, and ABS Census household connectivity rates. Suburbs are sorted by score (highest first), with ties broken by total NBN premises.

Only suburbs with sufficient data quality (score ≥ 3/5) are included. Data sourced from NBN Co, ABS Census, and ACCC broadband benchmarks.