SN11 postcode area guide — Wiltshire
House prices, crime, broadband speeds, mobile signal, schools and demographics for the SN11 postcode district in Wiltshire — every official dataset on one page.
Check any UK postcode
Where is SN11?
Broadband & internet speeds in SN11
Strong coverage
Superfast (30Mb+)
91.4%
Ultrafast (300Mb+)
70.1%
Gigabit-capable
68.8%
Below USO (10Mb)
0.7%
Broadband availability in the SN11 postcode district (Wiltshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 761 postcodes Ofcom measures in SN11, superfast broadband (30 Mbit/s or faster) reaches 91.4% of premises and gigabit-capable lines are available to 68.8%.
Around 0.7% of premises in SN11 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 SN11
| Postcode | Superfast | Gigabit |
|---|---|---|
| SN11 0AA | 100% | 100% |
| SN11 0AB | 100% | 100% |
| SN11 0AD | 100% | 100% |
| SN11 0AE | 100% | 100% |
| SN11 0AF | 100% | 100% |
| SN11 0AH | 100% | 100% |
| SN11 0AJ | 100% | 100% |
| SN11 0AL | 100% | 100% |
| SN11 0AN | 100% | 0% |
| SN11 0AP | 100% | 100% |
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):
4G indoors — all networks
81.6%
4G outdoors — all networks
98.4%
5G outdoors — all networks
20.2%
Voice indoors — all networks
88.1%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in SN11
Police recorded 84 incidents within about a mile of the centre of SN11 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 41 | 48.8% |
| Anti-social behaviour | 18 | 21.4% |
| Criminal damage & arson | 8 | 9.5% |
| Other theft | 7 | 8.3% |
| Public order | 3 | 3.6% |
| Drugs | 2 | 2.4% |
| Theft from the person | 2 | 2.4% |
| Shoplifting | 1 | 1.2% |
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 SN11
Based on 342 sales registered with HM Land Registry in the last 12 months, the median sold price in SN11 is £280,000, up 1.8% on the previous year (£275,000).
Detached
£400,000
99 sales
Semi-detached
£280,000
90 sales
Terraced
£240,000
113 sales
Flat / maisonette
£147,250
28 sales
Latest recorded sales in SN11
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 15 May 2026 | £255,000 | Semi-detached | Curzon Street | SN11 0DJ |
| 11 May 2026 | £391,731 | Semi-detached | Fairway | SN11 0LB |
| 11 May 2026 | £375,000 | Semi-detached | Weston Close | SN11 8GY |
| 8 May 2026 | £500,000 | Detached | Oxford Road | SN11 8AL |
| 8 May 2026 | £275,000 | Terraced | London Road | SN11 0AD |
| 7 May 2026 | £380,000 | Detached | Hastings Drive | SN11 8FS |
| 1 May 2026 | £325,000 | Terraced | Spitfire Road | SN11 8GA |
| 1 May 2026 | £435,000 | Detached | Newbury Avenue | SN11 9UN |
| 1 May 2026 | £262,000 | Detached | Curzon Close | SN11 0EU |
| 1 May 2026 | £210,000 | Terraced | Duncan Street | SN11 9BU |
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):
| Age profile | |
|---|---|
| Under 15 | 17.9% |
| 15–29 | 20.7% |
| 30–44 | 18.3% |
| 45–64 | 21.3% |
| 65+ | 21.9% |
| Housing tenure | |
|---|---|
| Owner-occupied | 66.8% |
| Private rented | 17.5% |
| Social rented | 10.9% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around SN11
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Kingsbury Green Academy | Secondary | 11–18 | 1,077 | SN11 8YH |
| St Marys Calne and St Margarets Prep | Not applicable | 2–19 | 449 | SN11 0DF |
| Fynamore Primary School | Primary | 4–11 | 411 | SN11 9UG |
| Priestley Primary School | Primary | 4–11 | 282 | SN11 8TG |
| The Springfields Academy | Not applicable | 4–19 | 267 | SN11 0DS |
| Holy Trinity Church of England Academy | Primary | 4–11 | 211 | SN11 0AR |
| Derry Hill Church of England Voluntary Aided Primary School | Primary | 5–11 | 206 | SN11 9NN |
| Cherhill CofE School | Primary | 4–11 | 205 | SN11 8XX |
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 SN11
107 rated food businesses operate in SN11. 70 hold the top rating of 5, 8 are rated 4, and 2 are rated 2 or below.
Among the 5-rated: Ajmer Spice, Antica Roma, ASDA Express, Beversbrook Sports Facility, Blacklands Lakes Leisure Centre.
Source: Food Standards Agency, food hygiene ratings (FHRS) open data.
Energy performance (EPC) in SN11
From a sample of 236 Energy Performance Certificates across 12 SN11 postcodes, the most common rating is band D (average band D). 35% of sampled homes are rated C or better.
Band B
10%
Band C
25%
Band D
45%
Band E
16%
Band F
3%
Band G
1%
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 SN11 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 SN11?
Be the first to rate SN11 (Wiltshire).
How would you rate living in SN11 (Wiltshire)?
Moving to SN11? Sort your connectivity first
We arrange broadband, full-fibre, leased lines, VoIP and business mobiles across Wiltshire — free, no-obligation quote.
Postcodes in SN11
Neighbouring districts
All Swindon (SN) postcode districts ›
Frequently asked questions
Where is the SN11 postcode?
How much do houses cost in SN11?
Is SN11 a safe area?
What broadband can I get in SN11?
Who lives in SN11?
How energy efficient are homes in SN11?
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.