# SW1X

Postcode district covering Belgravia and Hyde Park Corner, in Westminster and Kensington and Chelsea.

SW1X is a postcode district covering Belgravia and Hyde Park Corner, in Westminster and Kensington and Chelsea. Median sale price £2,525,000 in 2025.

Postcode district. Code SW1X. In: [Postcodes](https://openindex.co.uk/postcode) › [SW](https://openindex.co.uk/postcode/sw)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an SW1X postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £2,525,000** (2025). The median price paid for a home in SW1X was £2,525,000 in 2025. 2nd most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/sw1x#f-house-sales-median-price
- **Population: 5,352** (2021). SW1X had 5,352 usual residents at the census (ONS Census 2021). 480th least populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/sw1x#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in SW1X live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/sw1x#f-radon-affected-share
- **Gigabit broadband coverage: 88.9%** (January 2026). In SW1X, 88.9% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/sw1x#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SW1X) (Worked out by Open Index · 2022): About 0% of people in SW1X live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=SW1X) (Worked out by Open Index · 2025): 88 homes were sold in SW1X in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SW1X) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SW1X.
- [Population by postcode district](https://openindex.co.uk/map/population?place=SW1X) (Census 2021, England and Wales): SW1X had 5,352 usual residents at the census.

## How SW1X compares

Each postcode district against every other postcode district the measure covers.

| Measure | SW1X | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £2,525,000 | most expensive | 26 postcode districts, SW · 2025 |
| Population | 5,352 | 6th least populated | 28 postcode districts, SW · 2021 |
| People in radon Affected Area squares | 0% | – | 28 postcode districts, SW · 2022 |
| Gigabit broadband coverage | 88.9% | 7th lowest | 28 postcode districts, SW · Jan 2026 |

## Is SW1X safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SW1X at a rate of 571.4 per 1,000 people.
That compares with 126.0 per 1,000 people across the SW postcode area.
In August 2026 alone, 255 cases of crime and anti-social behaviour were recorded in SW1X.
In the 12 months to August 2026, the most common types were other crime (660), theft from the person (528) and violence and sexual offences (514).
A year earlier, the recorded crime rate in SW1X was 682.2 per 1,000 people.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

## Deprivation in SW1X, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so SW1X has no single figure. Of its 4 neighbourhoods with a rank:
- Decile 7: 1 neighbourhood
- Decile 8: 3 neighbourhoods

Source: English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

## Neighbourhoods in SW1X

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Kensington and Chelsea 012A](https://openindex.co.uk/kensington-and-chelsea/neighbourhood/e01002818) | 1,385 | 504.6 per 1,000 | 7 | 96.5% |
| [Kensington and Chelsea 012E](https://openindex.co.uk/kensington-and-chelsea/neighbourhood/e01002863) | 1,117 | 108.0 per 1,000 | 8 | 97.3% |
| [Westminster 019D](https://openindex.co.uk/westminster/neighbourhood/e01004690) | 1,065 | 228.7 per 1,000 | 8 | 86.2% |
| [Westminster 019E](https://openindex.co.uk/westminster/neighbourhood/e01004691) | 1,151 | 312.5 per 1,000 | 8 | 73.8% |

## Your MP

- [Cities of London and Westminster](https://openindex.co.uk/constituency/cities-of-london-and-westminster): Rachel Blake (Labour (Co-op)), MP since July 2024. 52% of the people here.
- [Kensington and Bayswater](https://openindex.co.uk/constituency/kensington-and-bayswater): Joe Powell (Labour), MP since July 2024. 40% of the people here.
- [Chelsea and Fulham](https://openindex.co.uk/constituency/chelsea-and-fulham): Ben Coleman (Labour), MP since July 2024. 7.5% of the people here.
- [Battersea](https://openindex.co.uk/constituency/battersea): Marsha De Cordova (Labour), MP since July 2024. 0.5% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in SW1X

[Knightsbridge, Belgravia & Hyde Park](https://openindex.co.uk/westminster/knightsbridge-belgravia-and-hyde-park)

## Postcode sectors in SW1X

[SW1X 0 (78 postcodes)](https://openindex.co.uk/postcode/sw1x-0), [SW1X 7 (87 postcodes)](https://openindex.co.uk/postcode/sw1x-7), [SW1X 8 (124 postcodes)](https://openindex.co.uk/postcode/sw1x-8), [SW1X 9 (113 postcodes)](https://openindex.co.uk/postcode/sw1x-9)

## Councils SW1X covers

[Westminster](https://openindex.co.uk/westminster), [Kensington and Chelsea](https://openindex.co.uk/kensington-and-chelsea)

## Towns in SW1X

[City of Westminster](https://openindex.co.uk/town/city-of-westminster), [Kensington and Chelsea](https://openindex.co.uk/kensington-and-chelsea)

## Postcode districts next to SW1X

[SW1W](https://openindex.co.uk/postcode/sw1w), [SW3](https://openindex.co.uk/postcode/sw3), [SW7](https://openindex.co.uk/postcode/sw7), [W1H](https://openindex.co.uk/postcode/w1h), [W1J](https://openindex.co.uk/postcode/w1j), [W1K](https://openindex.co.uk/postcode/w1k), [W2](https://openindex.co.uk/postcode/w2)

## Nearest rail stations

[Knightsbridge (650 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1605,51.5017), [Marble Arch (750 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1590,51.5134), [Hyde Park Corner (950 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1524,51.5030), [Lancaster Gate (950 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1755,51.5117)

## More in the SW postcode area

[All SW postcode districts](https://openindex.co.uk/postcode/sw), [Every UK postcode area](https://openindex.co.uk/postcode)

## SW1X in brief

SW1X is a postcode district covering Belgravia and Hyde Park Corner, in Westminster and Kensington and Chelsea.
About 5,371 people lived in SW1X in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £2,525,000 in 2025 across 88 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 571.4 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SW1X was £2,525,000 in 2025.
SW1X had 5,352 usual residents at the census.
About 0% of people in SW1X live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SW1X, 88.9% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: SW1X
- Postcode area: [SW](https://openindex.co.uk/postcode/sw)
- Constituency: [Cities of London and Westminster †](https://openindex.co.uk/constituency/cities-of-london-and-westminster)
- Council: [Westminster †](https://openindex.co.uk/westminster)
- Area: 2.80 km²
- People, mid-2024: 5,371*
- Neighbourhoods: 4
- Output areas: 29

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[SW3](https://openindex.co.uk/postcode/sw3), [SW1W](https://openindex.co.uk/postcode/sw1w), [SW7](https://openindex.co.uk/postcode/sw7), [W2](https://openindex.co.uk/postcode/w2), [W1K](https://openindex.co.uk/postcode/w1k), [W1J](https://openindex.co.uk/postcode/w1j)

## Latest updates for SW1X

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/SW1X

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sw1x, or to one figure with its anchor, https://openindex.co.uk/postcode/sw1x#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/sw1x