Clapham mobile coverage Within 8 points of the South West London average SW9 · Lambeth
No network wins SW9 on overall coverage: all four score 100/100.
SW9: Clapham, Stockwell, Oval, Larkhall, Herne Hill, Brixton North, Myatt's Fields, Brixton Windrush (Lambeth).
SW9 scores
Ofcom Mobile Coverage data (May 2025), measured across 114 addresses in 5 sampled postcodes: SW9 0AA, SW9 0DP, SW9 0TZ, SW9 6FA, SW9 7JP. Methodology.
How SW9 compares
Every network here is within 8 points of the South West London average and of SW8 Oval, SW4 Clapham, SW2 Streatham Hill and SW1P Nine Elms, indoors and outdoors.
Weakest spot in South West London: SW15 Putney, where O2 reaches 41% indoors.
Indoor signal around SW9
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1pMobile runs on EE's network: £5 a month for 5GB (read 19 October 2026). A price, not a coverage ranking: Ofcom separates no network here.
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