# TW1

Postcode district covering Twickenham, St Margarets and Richmond upon Thames, in Richmond upon Thames.

TW1 is a postcode district covering Twickenham, St Margarets and Richmond upon Thames, in Richmond upon Thames. Median sale price £730,000 in 2025.

Postcode district. Code TW1. In: [Postcodes](https://openindex.co.uk/postcode) › [TW](https://openindex.co.uk/postcode/tw)

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 TW1 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £730,000** (2025). The median price paid for a home in TW1 was £730,000 in 2025. Joint 63rd 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/tw1#f-house-sales-median-price
- **Population: 27,254** (2021). TW1 had 27,254 usual residents at the census (ONS Census 2021). 1,066th most 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/tw1#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in TW1 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/tw1#f-radon-affected-share
- **Gigabit broadband coverage: 94.9%** (January 2026). In TW1, 94.9% 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/tw1#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=TW1) (Worked out by Open Index · 2022): About 0% of people in TW1 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=TW1) (Worked out by Open Index · 2025): 443 homes were sold in TW1 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=TW1) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for TW1.
- [Population by postcode district](https://openindex.co.uk/map/population?place=TW1) (Census 2021, England and Wales): TW1 had 27,254 usual residents at the census.

## How TW1 compares

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

| Measure | TW1 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £730,000 | 3rd most expensive | 19 postcode districts, TW · 2025 |
| Population | 27,254 | 10th most populated | 20 postcode districts, TW · 2021 |
| People in radon Affected Area squares | 0% | – | 20 postcode districts, TW · 2022 |
| Gigabit broadband coverage | 94.9% | joint 5th highest | 20 postcode districts, TW · Jan 2026 |

## Is TW1 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in TW1 at a rate of 80.3 per 1,000 people.
That compares with 101.8 per 1,000 people across the TW postcode area.
In August 2026 alone, 130 cases of crime and anti-social behaviour were recorded in TW1.
In the 12 months to August 2026, the most common types were violence and sexual offences (504), anti-social behaviour (467) and other crime (414).
A year earlier, the recorded crime rate in TW1 was 80.7 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 TW1, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so TW1 has no single figure. Of its 14 neighbourhoods with a rank:
- Decile 8: 2 neighbourhoods
- Decile 9: 8 neighbourhoods
- Decile 10 (England’s least deprived 10%): 4 neighbourhoods

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

## Neighbourhoods in TW1

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Richmond upon Thames 007A](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003866) | 1,694 | 44.5 per 1,000 | 10 | 98.1% |
| [Richmond upon Thames 007B](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003868) | 1,568 | 35.2 per 1,000 | 9 | 96.4% |
| [Richmond upon Thames 007C](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003871) | 1,756 | 36.2 per 1,000 | 10 | 92.5% |
| [Richmond upon Thames 007D](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003872) | 1,567 | 74.5 per 1,000 | 9 | 94.2% |
| [Richmond upon Thames 009A](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003892) | 2,090 | 38.1 per 1,000 | 10 | 98.3% |
| [Richmond upon Thames 009B](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003893) | 1,623 | 58.4 per 1,000 | 9 | 91.7% |
| [Richmond upon Thames 009C](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003894) | 1,662 | 39.8 per 1,000 | 9 | 100.0% |
| [Richmond upon Thames 009D](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003895) | 1,774 | 29.5 per 1,000 | 9 | 99.1% |
| [Richmond upon Thames 011B](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003869) | 1,661 | 70.8 per 1,000 | 9 | 94.2% |
| [Richmond upon Thames 014A](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003882) | 2,000 | 57.2 per 1,000 | 9 | 94.5% |
| [Richmond upon Thames 014C](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003896) | 1,882 | 235.6 per 1,000 | 8 | 87.1% |
| [Richmond upon Thames 014D](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003897) | 1,960 | 144.0 per 1,000 | 8 | 95.1% |
| [Richmond upon Thames 016A](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003880) | 1,563 | 37.4 per 1,000 | 9 | 91.9% |
| [Richmond upon Thames 016B](https://openindex.co.uk/richmond-upon-thames/neighbourhood/e01003881) | 1,770 | 29.7 per 1,000 | 10 | 98.1% |

## Your MP

- [Twickenham](https://openindex.co.uk/constituency/twickenham): Munira Wilson (Liberal Democrat), MP since July 2024. 94% of the people here.
- [Brentford and Isleworth](https://openindex.co.uk/constituency/brentford-and-isleworth): Ruth Cadbury (Labour), MP since July 2024. 5.9% 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 TW1

[St Margarets](https://openindex.co.uk/richmond-upon-thames/st-margarets), [Strawberry Hill](https://openindex.co.uk/richmond-upon-thames/strawberry-hill), [Twickenham Marble Hill](https://openindex.co.uk/richmond-upon-thames/twickenham-marble-hill), [Twickenham Town](https://openindex.co.uk/richmond-upon-thames/twickenham-town)

## Postcode sectors in TW1

[TW1 1 (177 postcodes)](https://openindex.co.uk/postcode/tw1-1), [TW1 2 (151 postcodes)](https://openindex.co.uk/postcode/tw1-2), [TW1 3 (122 postcodes)](https://openindex.co.uk/postcode/tw1-3), [TW1 4 (168 postcodes)](https://openindex.co.uk/postcode/tw1-4), [TW1 9 (47 postcodes)](https://openindex.co.uk/postcode/tw1-9)

## Council

[Richmond upon Thames](https://openindex.co.uk/richmond-upon-thames)

## Towns in TW1

[Richmond upon Thames](https://openindex.co.uk/richmond-upon-thames)

## Postcode districts next to TW1

[TW2](https://openindex.co.uk/postcode/tw2), [TW7](https://openindex.co.uk/postcode/tw7), [TW11](https://openindex.co.uk/postcode/tw11)

## Nearest rail stations

[St Margarets (London) (250 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.3202,51.4552), [Twickenham (900 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.3304,51.4500), [Richmond (London) (1.6 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.3014,51.4631), [Richmond (1.6 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.3013,51.4632)

## More in the TW postcode area

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

## TW1 in brief

TW1 is a postcode district covering Twickenham, St Margarets and Richmond upon Thames, in Richmond upon Thames.
About 27,806 people lived in TW1 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £730,000 in 2025 across 443 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 80.3 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in TW1 was £730,000 in 2025.
TW1 had 27,254 usual residents at the census.
About 0% of people in TW1 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In TW1, 94.9% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: TW1
- Postcode area: [TW](https://openindex.co.uk/postcode/tw)
- Constituency: [Twickenham †](https://openindex.co.uk/constituency/twickenham)
- Council: [Richmond upon Thames †](https://openindex.co.uk/richmond-upon-thames)
- Area: 4.11 km²
- People, mid-2024: 27,806*
- Neighbourhoods: 14
- Output areas: 86

* 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

[TW2](https://openindex.co.uk/postcode/tw2), [TW7](https://openindex.co.uk/postcode/tw7), [TW11](https://openindex.co.uk/postcode/tw11)

## Latest updates for TW1

- 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/TW1

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/tw1, or to one figure with its anchor, https://openindex.co.uk/postcode/tw1#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/tw1