Can I get full fibre in Castle Cary?

Most homes in Castle Cary can get gigabit-capable broadband (86%), which in practice means full fibre or Virgin Media's cable network. Across Somerset as a whole, 76% of homes can get full fibre. Coverage changes street by street, so check your own postcode.

What is the fastest broadband in Castle Cary?

Gigabit speeds of 1,000Mbps or more are available to 86% of homes. Some providers sell faster packages again, up to several gigabits, on their own networks.

Which broadband providers cover Castle Cary?

Providers that use the Openreach network, including BT, EE, Sky, Plusnet, Vodafone, TalkTalk and NOW, can sell to most addresses. Where Openreach has built full fibre they sell that too. Virgin Media and independent full fibre networks only cover the streets they have built.

Are there homes in Castle Cary that can't get decent broadband?

No. Every postcode in Castle Cary has decent broadband (at least 10Mbps download) available from a fixed line or wireless network.

Broadband in Castle Cary

86% of homes in Castle Cary can get gigabit broadband, 9 points above the Somerset average of 77% and 4 points below the England figure of 90%. 99% can get superfast speeds of 30Mbps or more.

Most homes in Castle Cary can get gigabit broadband.

Gigabit
1,000Mbps or faster
86%
Ultrafast
300Mbps or faster
86%
Fast
100Mbps or faster
86%
Superfast
30Mbps or faster
99%
No decent service
Under 10Mbps from fixed lines or wireless
0%

Average share of homes able to get each speed across 158 postcodes in Castle Cary (BA7). Source: Ofcom Connected Nations, January 2026.

Street by street

72%

of Castle Cary's postcodes have gigabit broadband for every home

10%

of postcodes have no gigabit broadband at all yet

of postcodes include homes that can't get decent broadband

Castle Cary ranks 11th of 27 towns in Somerset for gigabit coverage. See all towns in Somerset.

How Castle Cary compares

Area	Gigabit	300Mbps+	Superfast
Castle Cary	86%	86%	99%
Somerset	77%	77%	96%
England	90%	90%	98%
United Kingdom	89%	89%	98%

Nearby towns

Bruton84% gigabit
Wincanton83% gigabit
Shepton Mallet72% gigabit
Glastonbury85% gigabit
Sherborne85% gigabit
Somerton15% gigabit

Choosing a provider in Castle Cary

Most addresses in Castle Cary can order from providers on the Openreach network. If Openreach has built full fibre to your street, all of them can sell it to you, so the choice comes down to price, the yearly price rise and customer service.

Virgin Media and independent full fibre networks only cover the streets they have built. If one of them covers you, it can be worth comparing, as they often sell faster speeds for similar money.

BTRises £4.00 a month each year
EERises £4.00 a month each year
SkyYearly rise not fixed at sale
TalkTalkRises £4.00 a month each year
VodafoneRises £3.50 a month each year
PlusnetRises £4.00 a month each year
NOW BroadbandYearly rise not fixed at sale
Zen InternetNo mid-contract rises

Questions

Can I get full fibre in Castle Cary?: Most homes in Castle Cary can get gigabit-capable broadband (86%), which in practice means full fibre or Virgin Media's cable network. Across Somerset as a whole, 76% of homes can get full fibre. Coverage changes street by street, so check your own postcode.
What is the fastest broadband in Castle Cary?: Gigabit speeds of 1,000Mbps or more are available to 86% of homes. Some providers sell faster packages again, up to several gigabits, on their own networks.
Which broadband providers cover Castle Cary?: Providers that use the Openreach network, including BT, EE, Sky, Plusnet, Vodafone, TalkTalk and NOW, can sell to most addresses. Where Openreach has built full fibre they sell that too. Virgin Media and independent full fibre networks only cover the streets they have built.
Are there homes in Castle Cary that can't get decent broadband?: No. Every postcode in Castle Cary has decent broadband (at least 10Mbps download) available from a fixed line or wireless network.

Figures are averages of the share of homes able to get each speed in every postcode Ofcom lists for Castle Cary, from Ofcom Connected Nations (January 2026). Postcodes are matched to towns using Ordnance Survey OS Open Names. Contains OS data © Crown copyright and database right. How we calculate this.