# SG6

Postcode district covering Letchworth, Norton and Willian, in North Hertfordshire.

SG6 is a postcode district covering Letchworth, Norton and Willian, in North Hertfordshire. Median sale price £390,000 in 2025.

Postcode district. Code SG6. In: [Postcodes](https://openindex.co.uk/postcode) › [SG](https://openindex.co.uk/postcode/sg)

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 SG6 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £390,000** (2025). The median price paid for a home in SG6 was £390,000 in 2025. Joint 627th 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/sg6#f-house-sales-median-price
- **Population: 34,325** (2021). SG6 had 34,325 usual residents at the census (ONS Census 2021). 689th 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/sg6#f-population
- **People in radon Affected Area squares: 3%** (2022). About 3% of people in SG6 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/sg6#f-radon-affected-share
- **Gigabit broadband coverage: 92.5%** (January 2026). In SG6, 92.5% 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/sg6#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=SG6) (Worked out by Open Index · 2022): About 3% of people in SG6 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=SG6) (Worked out by Open Index · 2025): 394 homes were sold in SG6 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=SG6) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for SG6.
- [Population by postcode district](https://openindex.co.uk/map/population?place=SG6) (Census 2021, England and Wales): SG6 had 34,325 usual residents at the census.

## How SG6 compares

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

| Measure | SG6 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £390,000 | joint 8th cheapest | 19 postcode districts, SG · 2025 |
| Population | 34,325 | 5th most populated | 19 postcode districts, SG · 2021 |
| People in radon Affected Area squares | 3% | joint 4th fewest people in radon Affected Areas | 19 postcode districts, SG · 2022 |
| Gigabit broadband coverage | 92.5% | joint 4th highest | 19 postcode districts, SG · Jan 2026 |

## Is SG6 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in SG6 at a rate of 83.1 per 1,000 people.
That compares with 73.9 per 1,000 people across the SG postcode area.
In August 2026 alone, 263 cases of crime and anti-social behaviour were recorded in SG6.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,066), anti-social behaviour (702) and other crime (431).
A year earlier, the recorded crime rate in SG6 was 87.2 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 SG6, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so SG6 has no single figure. Of its 23 neighbourhoods with a rank:
- Decile 2: 1 neighbourhood
- Decile 3: 4 neighbourhoods
- Decile 4: 3 neighbourhoods
- Decile 5: 3 neighbourhoods
- Decile 6: 3 neighbourhoods
- Decile 7: 1 neighbourhood
- Decile 8: 2 neighbourhoods
- Decile 9: 2 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 SG6

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [North Hertfordshire 003A](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023635) | 1,496 | 50.3 per 1,000 | 6 | 98.9% |
| [North Hertfordshire 003B](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023636) | 1,854 | 63.3 per 1,000 | 8 | 98.2% |
| [North Hertfordshire 003C](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023637) | 1,824 | 100.3 per 1,000 | 3 | 96.1% |
| [North Hertfordshire 003D](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023638) | 1,634 | 50.4 per 1,000 | 5 | 96.7% |
| [North Hertfordshire 006A](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023630) | 1,856 | 90.0 per 1,000 | 5 | 86.2% |
| [North Hertfordshire 006B](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023631) | 1,684 | 109.0 per 1,000 | 4 | 94.0% |
| [North Hertfordshire 006C](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023632) | 1,922 | 60.4 per 1,000 | 6 | 93.9% |
| [North Hertfordshire 006D](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023633) | 1,328 | 198.3 per 1,000 | 5 | 90.8% |
| [North Hertfordshire 006E](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023634) | 1,285 | 43.7 per 1,000 | 10 | 87.7% |
| [North Hertfordshire 007A](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023649) | 1,270 | 84.8 per 1,000 | 8 | 95.8% |
| [North Hertfordshire 007B](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023650) | 1,629 | 70.9 per 1,000 | 3 | 100.0% |
| [North Hertfordshire 007C](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023651) | 1,233 | 59.9 per 1,000 | 7 | 100.0% |
| [North Hertfordshire 007D](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023652) | 1,500 | 75.6 per 1,000 | 4 | 100.0% |
| [North Hertfordshire 008A](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023644) | 1,712 | 161.7 per 1,000 | 9 | 54.6% |
| [North Hertfordshire 008B](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023645) | 1,563 | 140.7 per 1,000 | 6 | 88.7% |
| [North Hertfordshire 008C](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023646) | 1,479 | 106.0 per 1,000 | 3 | 100.0% |
| [North Hertfordshire 008D](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023647) | 1,469 | 16.5 per 1,000 | 10 | 98.1% |
| [North Hertfordshire 008E](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023648) | 1,193 | 74.3 per 1,000 | 10 | 87.7% |
| [North Hertfordshire 009A](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023639) | 1,273 | 39.1 per 1,000 | 9 | 99.4% |
| [North Hertfordshire 009B](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023640) | 1,250 | 97.5 per 1,000 | 2 | 98.0% |
| [North Hertfordshire 009C](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023641) | 1,355 | 72.0 per 1,000 | 3 | 99.7% |
| [North Hertfordshire 009D](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023642) | 1,259 | 19.1 per 1,000 | 10 | 99.2% |
| [North Hertfordshire 009E](https://openindex.co.uk/north-hertfordshire/neighbourhood/e01023643) | 1,256 | 110.7 per 1,000 | 4 | 96.0% |

## Your MP

- [North East Hertfordshire](https://openindex.co.uk/constituency/north-east-hertfordshire): Chris Hinchliff (Labour), MP since July 2024. 100% of the people here.
- [Hitchin](https://openindex.co.uk/constituency/hitchin): Alistair Strathern (Labour), MP since July 2024. 0.3% 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 SG6

[Letchworth East](https://openindex.co.uk/north-hertfordshire/letchworth-east), [Letchworth Grange](https://openindex.co.uk/north-hertfordshire/letchworth-grange), [Letchworth South East](https://openindex.co.uk/north-hertfordshire/letchworth-south-east), [Letchworth South West](https://openindex.co.uk/north-hertfordshire/letchworth-south-west), [Letchworth Wilbury](https://openindex.co.uk/north-hertfordshire/letchworth-wilbury)

## Postcode sectors in SG6

[SG6 1 (217 postcodes)](https://openindex.co.uk/postcode/sg6-1), [SG6 2 (232 postcodes)](https://openindex.co.uk/postcode/sg6-2), [SG6 3 (195 postcodes)](https://openindex.co.uk/postcode/sg6-3), [SG6 4 (268 postcodes)](https://openindex.co.uk/postcode/sg6-4), [SG6 9 (66 postcodes)](https://openindex.co.uk/postcode/sg6-9)

## Council

[North Hertfordshire](https://openindex.co.uk/north-hertfordshire)

## Towns in SG6

[Letchworth](https://openindex.co.uk/town/letchworth)

## Postcode districts next to SG6

[SG4](https://openindex.co.uk/postcode/sg4), [SG5](https://openindex.co.uk/postcode/sg5), [SG7](https://openindex.co.uk/postcode/sg7), [SG15](https://openindex.co.uk/postcode/sg15)

## Nearest rail stations

[Letchworth Garden City (650 m from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.2293,51.9800), [Baldock (2.9 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.1876,51.9929), [Hitchin (3.9 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.2635,51.9533)

## More in the SG postcode area

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

## SG6 in brief

SG6 is a postcode district covering Letchworth, Norton and Willian, in North Hertfordshire.
About 34,951 people lived in SG6 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £390,000 in 2025 across 394 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 83.1 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in SG6 was £390,000 in 2025.
SG6 had 34,325 usual residents at the census.
About 3% of people in SG6 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In SG6, 92.5% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: SG6
- Postcode area: [SG](https://openindex.co.uk/postcode/sg)
- Constituency: [North East Hertfordshire †](https://openindex.co.uk/constituency/north-east-hertfordshire)
- Council: [North Hertfordshire †](https://openindex.co.uk/north-hertfordshire)
- Area: 20.11 km²
- People, mid-2024: 34,951*
- Neighbourhoods: 23
- Output areas: 113

* 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

[SG4](https://openindex.co.uk/postcode/sg4), [SG7](https://openindex.co.uk/postcode/sg7), [SG5](https://openindex.co.uk/postcode/sg5), [SG15](https://openindex.co.uk/postcode/sg15)

## Latest updates for SG6

- 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/SG6

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/sg6, or to one figure with its anchor, https://openindex.co.uk/postcode/sg6#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/sg6