Best Internet Suburbs in Adelaide (50 Top-Rated)

Looking for the best internet in Adelaide? We've ranked the top 50 suburbs within 50km of Adelaide's CBD by internet quality score. These suburbs offer the fastest, most reliable NBN connections in the Adelaide metropolitan area, based on technology type, fibre coverage, and connectivity data.

50 suburbs ranked · Data updated March 2026

Rank	Suburb	State	Tech Type	Score	Grade	Speed Range	Premises
1	Prospect	SA	FTTP	10/10	A+	25-1000 Mbps	7,804
2	Aldinga Beach	SA	FTTP	10/10	A+	25-1000 Mbps	5,818
3	Ingle Farm	SA	FTTP	10/10	A+	25-1000 Mbps	4,678
4	Strathalbyn	SA	FTTP	10/10	A+	25-1000 Mbps	4,195
5	Angle Vale	SA	FTTP	10/10	A+	25-1000 Mbps	3,922
6	Modbury	SA	FTTP	10/10	A+	25-1000 Mbps	3,498
7	Munno Para West	SA	FTTP	10/10	A+	25-1000 Mbps	3,443
8	Munno Para	SA	FTTP	10/10	A+	25-1000 Mbps	3,135
9	Para Hills	SA	FTTP	10/10	A+	25-1000 Mbps	3,095
10	Valley View	SA	FTTP	10/10	A+	25-1000 Mbps	2,887
11	Gawler East	SA	FTTP	10/10	A+	25-1000 Mbps	2,848
12	Modbury North	SA	FTTP	10/10	A+	25-1000 Mbps	2,573
13	Seaford Rise	SA	FTTP	10/10	A+	25-1000 Mbps	2,534
14	Seaford	SA	FTTP	10/10	A+	25-1000 Mbps	2,445
15	Mclaren Vale	SA	FTTP	10/10	A+	25-1000 Mbps	2,309
16	Ridgehaven	SA	FTTP	10/10	A+	25-1000 Mbps	2,309
17	Seaford Meadows	SA	FTTP	10/10	A+	25-1000 Mbps	2,146
18	Walkerville	SA	FTTP	10/10	A+	25-1000 Mbps	1,818
19	Moana	SA	FTTP	10/10	A+	25-1000 Mbps	1,816
20	Port Noarlunga South	SA	FTTP	10/10	A+	25-1000 Mbps	1,632
21	Sellicks Beach	SA	FTTP	10/10	A+	25-1000 Mbps	1,614
22	St Clair	SA	FTTP	10/10	A+	25-1000 Mbps	1,590
23	Melrose Park	SA	FTTP	10/10	A+	25-1000 Mbps	1,470
24	Para Vista	SA	FTTP	10/10	A+	25-1000 Mbps	1,450
25	Bowden	SA	FTTP	10/10	A+	25-1000 Mbps	1,448
26	Daw Park	SA	FTTP	10/10	A+	25-1000 Mbps	1,420
27	Lewiston	SA	FTTP	10/10	A+	25-1000 Mbps	1,390
28	Colonel Light Gardens	SA	FTTP	10/10	A+	25-1000 Mbps	1,301
29	Evanston Gardens	SA	FTTP	10/10	A+	25-1000 Mbps	1,287
30	Riverlea Park	SA	FTTP	10/10	A+	25-1000 Mbps	1,255
31	Willunga	SA	FTTP	10/10	A+	25-1000 Mbps	1,246
32	Vale Park	SA	FTTP	10/10	A+	25-1000 Mbps	1,240
33	Port Willunga	SA	FTTP	10/10	A+	25-1000 Mbps	1,143
34	Nailsworth	SA	FTTP	10/10	A+	25-1000 Mbps	1,091
35	Seaford Heights	SA	FTTP	10/10	A+	25-1000 Mbps	1,068
36	Lower Mitcham	SA	FTTP	10/10	A+	25-1000 Mbps	1,005
37	Gilberton	SA	FTTP	10/10	A+	25-1000 Mbps	974
38	Roseworthy	SA	FTTP	10/10	A+	25-1000 Mbps	913
39	Meadows	SA	FTTP	10/10	A+	25-1000 Mbps	898
40	Eyre	SA	FTTP	10/10	A+	25-1000 Mbps	843
41	Collinswood	SA	FTTP	10/10	A+	25-1000 Mbps	813
42	Munno Para Downs	SA	FTTP	10/10	A+	25-1000 Mbps	722
43	Maslin Beach	SA	FTTP	10/10	A+	25-1000 Mbps	716
44	Old Noarlunga	SA	FTTP	10/10	A+	25-1000 Mbps	706
45	Clapham	SA	FTTP	10/10	A+	25-1000 Mbps	702
46	Macclesfield	SA	FTTP	10/10	A+	25-1000 Mbps	663
47	Mclaren Flat	SA	FTTP	10/10	A+	25-1000 Mbps	655
48	Sefton Park	SA	FTTP	10/10	A+	25-1000 Mbps	653
49	Woodforde	SA	FTTP	10/10	A+	25-1000 Mbps	589
50	Ovingham	SA	FTTP	10/10	A+	25-1000 Mbps	486

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.