SW20 postcode area guide — Kingston upon Thames

Where is SW20?

Broadband & internet speeds in SW20

Excellent coverage

Broadband availability in the SW20 postcode district (Kingston upon Thames) is Excellent — gigabit-capable full fibre is widely available. Across the 526 postcodes Ofcom measures in SW20, superfast broadband (30 Mbit/s or faster) reaches 99.4% of premises and gigabit-capable lines are available to 89.3%.

Around 0% of premises in SW20 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 SW20

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

Mobile signal around Kingston upon Thames

Ofcom's coverage model for the wider Kingston Upon Thames district (72,901 premises):

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

Crime in SW20

Police recorded 195 incidents within about a mile of the centre of SW20 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 SW20

Based on 260 sales registered with HM Land Registry in the last 12 months, the median sold price in SW20 is £700,000, up 1.4% on the previous year (£690,000).

Latest recorded sales in SW20

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

Who lives here? Kingston upon Thames demographics

Census 2021 figures for the wider Kingston upon Thames district (168,064 residents, 65,628 households):

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

Schools in and around SW20

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 SW20

124 rated food businesses operate in SW20. 94 hold the top rating of 5, 8 are rated 4, and 1 are rated 2 or below.

Among the 5-rated: AELTC Community Tennis Centre, Afterschool Club, Babylon, Bavani Care Home, Bawi.

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

Energy performance (EPC) in SW20

From a sample of 261 Energy Performance Certificates across 12 SW20 postcodes, the most common rating is band D (average band D). 28% 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 Kingston upon Thames

Landlines around SW20 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 SW20?

Postcodes in SW20

Neighbouring districts

All South West London (SW) 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.