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

RankSuburbStateTech TypeScoreGradeSpeed RangePremises
1Kuitpo ColonySASatellite2.5/10D12-25 Mbps18
2CherryvilleSASatellite2.5/10D12-25 Mbps56
3Blackfellows CreekSASatellite3/10D+12-25 Mbps16
4Mount Barker JunctionSAFixed Wireless3.5/10D+25-75 Mbps7
5MontarraSAFixed Wireless3.5/10D+25-75 Mbps11
6MillbrookSAFixed Wireless3.5/10D+25-75 Mbps12
7CastambulSAFixed Wireless3.5/10D+25-75 Mbps13
8KyeemaSAFixed Wireless3.5/10D+25-75 Mbps14
9Dorset ValeSAFixed Wireless3.5/10D+25-75 Mbps15
10WoolshedsSAFixed Wireless3.5/10D+25-75 Mbps16
11SalemSAFixed Wireless3.5/10D+25-75 Mbps17
12St IvesSAFixed Wireless3.5/10D+25-75 Mbps18
13FischerSAFixed Wireless3.5/10D+25-75 Mbps25
14Hay ValleySAFixed Wireless3.5/10D+25-75 Mbps27
15KingsfordSAFixed Wireless3.5/10D+25-75 Mbps29
16Leawood GardensSA3.5/10D+32
17BletchleySAFixed Wireless3.5/10D+25-75 Mbps33
18Barossa GoldfieldsSAFixed Wireless3.5/10D+25-75 Mbps34
19Mcharg CreekSAFixed Wireless3.5/10D+25-75 Mbps38
20Green Hills RangeSAFixed Wireless3.5/10D+25-75 Mbps39
21Red CreekSAFixed Wireless3.5/10D+25-75 Mbps39
22GemmellsSAFixed Wireless3.5/10D+25-75 Mbps41
23Kangaroo FlatSAFixed Wireless3.5/10D+25-75 Mbps44
24Port GawlerSAFixed Wireless3.5/10D+25-75 Mbps44
25Willunga HillSAFixed Wireless3.5/10D+25-75 Mbps47
26Chapel HillSAFixed Wireless3.5/10D+25-75 Mbps49
27Sampson FlatSAFixed Wireless3.5/10D+25-75 Mbps51
28Gawler RiverSAFixed Wireless3.5/10D+25-75 Mbps54
29Mount Barker SummitSAFixed Wireless3.5/10D+25-75 Mbps54
30SandergroveSAFixed Wireless3.5/10D+25-75 Mbps58
31Buckland ParkSAFixed Wireless3.5/10D+25-75 Mbps62
32Mount CrawfordSA3.5/10D+65
33YundiSAFixed Wireless3.5/10D+25-75 Mbps66
34The RangeSAFixed Wireless3.5/10D+25-75 Mbps67
35Lower HermitageSAFixed Wireless3.5/10D+25-75 Mbps73
36Reeves PlainsSAFixed Wireless3.5/10D+25-75 Mbps73
37Ward BeltSAFixed Wireless3.5/10D+25-75 Mbps73
38FlaxleySAFixed Wireless3.5/10D+25-75 Mbps74
39Bull CreekSAFixed Wireless3.5/10D+25-75 Mbps78
40St KildaSAFixed Wireless3.5/10D+25-75 Mbps79
41PaechtownSAFixed Wireless3.5/10D+25-75 Mbps80
42Upper HermitageSAFixed Wireless3.5/10D+25-75 Mbps86
43HartleySAFixed Wireless3.5/10D+25-75 Mbps87
44RosedaleSAFixed Wireless3.5/10D+25-75 Mbps87
45BuchfeldeSAFixed Wireless3.5/10D+25-75 Mbps89
46Paris CreekSAFixed Wireless3.5/10D+25-75 Mbps90
47CromerSAFixed Wireless3.5/10D+25-75 Mbps92
48Middle BeachSAFixed Wireless3.5/10D+25-75 Mbps92
49Gould CreekSAFixed Wireless3.5/10D+25-75 Mbps105
50YattalungaSAFixed Wireless3.5/10D+25-75 Mbps106

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.