SL8 · Buckinghamshire

SL8 broadband and area guide

Ofcom coverage, connection speeds, house prices and local data for 255 postcodes across 1 sector in Buckinghamshire.

Full fibre

0%

Gigabit

79%

Superfast

99%

Postcodes

255

SL8 is a compact 255-postcode district in Buckinghamshire with the highest superfast penetration in the batch. Nearly 99% reach superfast speeds.

Broadband speeds in SL8

Share of SL8 premises by the fastest download speed available, averaged across all 255 postcodes in the district.

Superfast sits at 98.9%, an achievement well above UK average. Gigabit capability reaches 78.7%, delivered by cable networks. The speed profile is heavily weighted toward the high end: 82.8% of postcodes reach 300+ Mbps, 16.1% occupy the 30 to 300 Mbps range, and none fall below 10 Mbps. This clean, modern coverage reflects tight, planned infrastructure serving a cohesive locality. The absence of any below-USO postcodes is uncommon and suggests all premises receive viable service. Full fibre is not recorded here. Cable networks provide all high-speed capacity. Few outward codes achieve this combination of universal superfast coverage and minimal speed variation.

Under 2 Mbps
0%
2 to 5 Mbps
0%
5 to 10 Mbps
0%
10 to 30 Mbps
<1%
30 to 300 Mbps
16%
300 Mbps and above
83%

Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.

Connectivity in detail

Below 10 Mbps USO

<1%

Premises unable to get the 10 Mbps universal service minimum

Fixed wireless

0%

Premises that can use a fixed wireless access service

Broadband by sector

SL8 splits into 1 postcode sector. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.

SectorPostcodesSuperfastFull fibreGigabit
SL8 525599%0%79%
All SL8 5 postcodes (255)
SL8 5AASL8 5ABSL8 5ADSL8 5AESL8 5AGSL8 5AHSL8 5AJSL8 5ALSL8 5ANSL8 5APSL8 5AQSL8 5ARSL8 5ASSL8 5ATSL8 5AUSL8 5AWSL8 5AXSL8 5AYSL8 5AZSL8 5BBSL8 5BDSL8 5BESL8 5BGSL8 5BHSL8 5BJSL8 5BLSL8 5BNSL8 5BPSL8 5BQSL8 5BSSL8 5BTSL8 5BUSL8 5BWSL8 5BXSL8 5BYSL8 5BZSL8 5DASL8 5DBSL8 5DFSL8 5DGSL8 5DHSL8 5DJSL8 5DLSL8 5DNSL8 5DPSL8 5DQSL8 5DSSL8 5DTSL8 5DWSL8 5DXSL8 5DYSL8 5DZSL8 5EASL8 5EBSL8 5EDSL8 5EESL8 5EFSL8 5EGSL8 5EHSL8 5EJSL8 5ELSL8 5ENSL8 5EPSL8 5EQSL8 5ERSL8 5ESSL8 5ETSL8 5EUSL8 5EWSL8 5EXSL8 5FFSL8 5FHSL8 5FNSL8 5FWSL8 5GASL8 5GZSL8 5HASL8 5HBSL8 5HDSL8 5HESL8 5HFSL8 5HGSL8 5HHSL8 5HJSL8 5HLSL8 5HNSL8 5HPSL8 5HQSL8 5HRSL8 5HSSL8 5HTSL8 5HUSL8 5HWSL8 5HXSL8 5HYSL8 5HZSL8 5JASL8 5JBSL8 5JDSL8 5JESL8 5JFSL8 5JGSL8 5JHSL8 5JJSL8 5JLSL8 5JNSL8 5JPSL8 5JQSL8 5JSSL8 5JTSL8 5JUSL8 5JWSL8 5JXSL8 5JYSL8 5LASL8 5LBSL8 5LDSL8 5LESL8 5LFSL8 5LGSL8 5LHSL8 5LJSL8 5LLSL8 5LNSL8 5LPSL8 5LQSL8 5LRSL8 5LSSL8 5LTSL8 5LUSL8 5LWSL8 5LXSL8 5LYSL8 5LZSL8 5NASL8 5NBSL8 5NDSL8 5NESL8 5NFSL8 5NGSL8 5NJSL8 5NLSL8 5NPSL8 5NRSL8 5NSSL8 5NTSL8 5NUSL8 5NWSL8 5NXSL8 5NYSL8 5NZSL8 5PASL8 5PBSL8 5PDSL8 5PESL8 5PFSL8 5PGSL8 5PHSL8 5PJSL8 5PLSL8 5PNSL8 5PPSL8 5PQSL8 5PRSL8 5PSSL8 5PTSL8 5PWSL8 5PXSL8 5QASL8 5QDSL8 5QESL8 5QFSL8 5QGSL8 5QHSL8 5QJSL8 5QNSL8 5QPSL8 5QRSL8 5QSSL8 5QTSL8 5QUSL8 5QWSL8 5QXSL8 5QYSL8 5QZSL8 5RASL8 5RBSL8 5RDSL8 5RESL8 5RFSL8 5RGSL8 5RHSL8 5RJSL8 5RLSL8 5RNSL8 5RPSL8 5RRSL8 5RSSL8 5RTSL8 5RUSL8 5RWSL8 5RXSL8 5RYSL8 5RZSL8 5SASL8 5SBSL8 5SESL8 5SHSL8 5SJSL8 5SLSL8 5SNSL8 5SPSL8 5SQSL8 5SRSL8 5SSSL8 5STSL8 5SWSL8 5SXSL8 5SYSL8 5TBSL8 5TDSL8 5TGSL8 5THSL8 5TJSL8 5TLSL8 5TNSL8 5TPSL8 5TQSL8 5TRSL8 5TSSL8 5TTSL8 5TUSL8 5TWSL8 5TXSL8 5TYSL8 5TZSL8 5UNSL8 5UPSL8 5URSL8 5UTSL8 5UWSL8 5XDSL8 5XESL8 5XFSL8 5XGSL8 5XHSL8 5XJSL8 5XLSL8 5XNSL8 5XPSL8 5XQSL8 5XWSL8 5YPSL8 5YQSL8 5YS

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Living in Buckinghamshire

SL8's small footprint (255 postcodes) may explain the uniformity. Dense suburban or commuter-belt properties allow cable networks to serve everyone, leaving no premises stranded.

Remote worker score

55/100

Connectivity and amenities for home working

Family score

50/100

Schools, safety and family amenities

Value score

50/100

What you get for the local price level

SL8 broadband FAQs

Is every postcode here covered?

Effectively yes. 98.9% reach superfast, and no postcodes fall below 10 Mbps. You can assume broadband is solved in SL8.

How many get gigabit?

78.7% of postcodes support gigabit via cable. The remaining 21% get 30-300 Mbps, still well above the USO minimum.

Why is SL8's coverage so clean?

The small size (255 postcodes) and likely density mean providers have economically covered every address. No remote or marginal premises drag down the average.

Can I safely assume gigabit without checking?

Nearly. 82.8% do. But verify your postcode to be certain, as 17% sit below gigabit, though still fast.

Neighbouring districts

Check your exact postcode

Every postcode in SL8 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.

Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources