SN12 postcode area guide — Wiltshire

Where is SN12?

Broadband & internet speeds in SN12

Strong coverage

Broadband availability in the SN12 postcode district (Wiltshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 806 postcodes Ofcom measures in SN12, superfast broadband (30 Mbit/s or faster) reaches 92.4% of premises and gigabit-capable lines are available to 60.4%.

Around 0.2% of premises in SN12 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in SN12

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around Wiltshire

Ofcom's coverage model for the wider Wiltshire district (242,195 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in SN12

Police recorded 130 incidents within about a mile of the centre of SN12 in May 2026 (latest published street-level data). The breakdown:

Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).

House prices in SN12

Based on 329 sales registered with HM Land Registry in the last 12 months, the median sold price in SN12 is £290,000, down 1.7% on the previous year (£295,000).

Latest recorded sales in SN12

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? Wiltshire demographics

Census 2021 figures for the wider Wiltshire district (510,333 residents, 215,081 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around SN12

Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.

Food hygiene ratings in SN12

149 rated food businesses operate in SN12. 100 hold the top rating of 5, 15 are rated 4, and 4 are rated 2 or below.

Among the 5-rated: ABC Day Nursery (Melksham) Ltd., Acropolis Kebab Shop, Aldi, Alpine Villa Care Home, Antico Caffe.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in SN12

From a sample of 105 Energy Performance Certificates across 11 SN12 postcodes, the most common rating is band D (average band D). 46% of sampled homes are rated C or better.

Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.

Phone area codes for Wiltshire

Landlines around SN12 typically use:

Had a call from an unknown number? Use our free UK phone number checker to see who called.

What's it like living in SN12?

Postcodes in SN12

Neighbouring districts

All Swindon (SN) postcode districts ›

Frequently asked questions

Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.