# BL4

Postcode district covering Farnworth, Highfield and Dixon Green, in Bolton.

BL4 is a postcode district covering Farnworth, Highfield and Dixon Green, in Bolton. Median sale price £183,500 in 2025. About 36,861 people.

Postcode district. Code BL4. In: [Postcodes](https://openindex.co.uk/postcode) › [BL](https://openindex.co.uk/postcode/bl)

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 BL4 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £183,500** (2025). The median price paid for a home in BL4 was £183,500 in 2025. 273rd cheapest 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/bl4#f-house-sales-median-price
- **Population: 35,271** (2021). BL4 had 35,271 usual residents at the census (ONS Census 2021). 639th 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/bl4#f-population
- **People in radon Affected Area squares: 96%** (2022). About 96% of people in BL4 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/bl4#f-radon-affected-share
- **Gigabit broadband coverage: 97.3%** (January 2026). In BL4, 97.3% 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/bl4#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=BL4) (Worked out by Open Index · 2022): About 96% of people in BL4 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=BL4) (Worked out by Open Index · 2025): 370 homes were sold in BL4 in 2025.
- [Population by postcode district](https://openindex.co.uk/map/population?place=BL4) (Census 2021, England and Wales): BL4 had 35,271 usual residents at the census.
- [Deprivation score by council](https://openindex.co.uk/map/deprivation-score-england?place=BL4) (English Indices of Deprivation 2025): Published for whole councils, so the map colours all of Bolton, where most of this postcode district lies. The outline is BL4.

## How BL4 compares

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

| Measure | BL4 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £183,500 | cheapest | 10 postcode districts, BL · 2025 |
| Population | 35,271 | 5th least populated | 10 postcode districts, BL · 2021 |
| People in radon Affected Area squares | 96% | joint 4th fewest people in radon Affected Areas | 10 postcode districts, BL · 2022 |
| Gigabit broadband coverage | 97.3% | highest | 10 postcode districts, BL · Jan 2026 |

## What is the population of BL4?

BL4 had 35,271 usual residents at the census.
BL4 is the 639th most populated of 2,756 in the UK.

## Deprivation in BL4, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so BL4 has no single figure. Of its 21 neighbourhoods with a rank:
- Decile 1 (England’s most deprived 10%): 7 neighbourhoods
- Decile 2: 9 neighbourhoods
- Decile 3: 2 neighbourhoods
- Decile 4: 1 neighbourhood
- Decile 5: 1 neighbourhood
- Decile 6: 1 neighbourhood

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

## Neighbourhoods in BL4

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Bolton 027B](https://openindex.co.uk/bolton/neighbourhood/e01004855) | 1,481 | – | 2 | 98.7% |
| [Bolton 027C](https://openindex.co.uk/bolton/neighbourhood/e01004856) | 1,537 | – | 1 | 95.7% |
| [Bolton 027D](https://openindex.co.uk/bolton/neighbourhood/e01004857) | 1,902 | – | 1 | 97.4% |
| [Bolton 029B](https://openindex.co.uk/bolton/neighbourhood/e01004872) | 1,694 | – | 2 | 97.6% |
| [Bolton 029C](https://openindex.co.uk/bolton/neighbourhood/e01004873) | 2,021 | – | 2 | 100.0% |
| [Bolton 029D](https://openindex.co.uk/bolton/neighbourhood/e01004875) | 1,669 | – | 4 | 99.1% |
| [Bolton 029E](https://openindex.co.uk/bolton/neighbourhood/e01004880) | 1,479 | – | 5 | 84.7% |
| [Bolton 032A](https://openindex.co.uk/bolton/neighbourhood/e01004858) | 1,586 | – | 1 | 98.3% |
| [Bolton 032B](https://openindex.co.uk/bolton/neighbourhood/e01004859) | 1,506 | – | 1 | 96.8% |
| [Bolton 032C](https://openindex.co.uk/bolton/neighbourhood/e01004860) | 1,470 | – | 3 | 96.3% |
| [Bolton 032D](https://openindex.co.uk/bolton/neighbourhood/e01004902) | 1,847 | – | 2 | 98.3% |
| [Bolton 032E](https://openindex.co.uk/bolton/neighbourhood/e01004906) | 1,795 | – | 2 | 97.9% |
| [Bolton 033A](https://openindex.co.uk/bolton/neighbourhood/e01004861) | 1,962 | – | 1 | 99.1% |
| [Bolton 033B](https://openindex.co.uk/bolton/neighbourhood/e01004862) | 1,436 | – | 1 | 99.4% |
| [Bolton 033C](https://openindex.co.uk/bolton/neighbourhood/e01004863) | 1,586 | – | 1 | 99.7% |
| [Bolton 033D](https://openindex.co.uk/bolton/neighbourhood/e01004874) | 1,755 | – | 2 | 100.0% |
| [Bolton 033E](https://openindex.co.uk/bolton/neighbourhood/e01004876) | 1,967 | – | 2 | 99.3% |
| [Bolton 034C](https://openindex.co.uk/bolton/neighbourhood/e01004905) | 1,597 | – | 2 | 99.6% |
| [Bolton 034D](https://openindex.co.uk/bolton/neighbourhood/e01004907) | 1,310 | – | 2 | 94.8% |
| [Bolton 034E](https://openindex.co.uk/bolton/neighbourhood/e01004908) | 1,296 | – | 6 | 97.3% |
| [Bolton 034F](https://openindex.co.uk/bolton/neighbourhood/e01004909) | 1,397 | – | 3 | 100.0% |

## Your MP

- [Bolton South and Walkden](https://openindex.co.uk/constituency/bolton-south-and-walkden): Yasmin Qureshi (Labour), MP since July 2024. 98% of the people here.
- [Bolton West](https://openindex.co.uk/constituency/bolton-west): Phil Brickell (Labour), MP since July 2024. 2.1% 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 BL4

[Farnworth North](https://openindex.co.uk/bolton/farnworth-north), [Farnworth South](https://openindex.co.uk/bolton/farnworth-south), [Harper Green](https://openindex.co.uk/bolton/harper-green), [Highfield & New Bury](https://openindex.co.uk/bolton/highfield-and-new-bury), [Kearsley & Stoneclough](https://openindex.co.uk/bolton/kearsley-and-stoneclough)

## Postcode sectors in BL4

[BL4 0 (200 postcodes)](https://openindex.co.uk/postcode/bl4-0), [BL4 4 (4 postcodes)](https://openindex.co.uk/postcode/bl4-4), [BL4 7 (213 postcodes)](https://openindex.co.uk/postcode/bl4-7), [BL4 8 (206 postcodes)](https://openindex.co.uk/postcode/bl4-8), [BL4 9 (227 postcodes)](https://openindex.co.uk/postcode/bl4-9)

## Council

[Bolton](https://openindex.co.uk/bolton)

## Towns in BL4

[Farnworth](https://openindex.co.uk/town/farnworth), [Kearsley](https://openindex.co.uk/town/kearsley)

## Postcode districts next to BL4

[BL3](https://openindex.co.uk/postcode/bl3), [BL5](https://openindex.co.uk/postcode/bl5), [M26](https://openindex.co.uk/postcode/m26), [M27](https://openindex.co.uk/postcode/m27), [M28](https://openindex.co.uk/postcode/m28), [M38](https://openindex.co.uk/postcode/m38)

## Nearest rail stations

[Moses Gate (1.0 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-2.4012,53.5560), [Farnworth (1.4 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-2.3878,53.5500), [Kearsley (Manchester) (2.2 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-2.3751,53.5441), [Bolton (3.2 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-2.4258,53.5741)

## More in the BL postcode area

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

## BL4 in brief

BL4 is a postcode district covering Farnworth, Highfield and Dixon Green, in Bolton.
About 36,861 people lived in BL4 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £183,500 in 2025 across 370 sales (HM Land Registry).
The median price paid for a home in BL4 was £183,500 in 2025.
BL4 had 35,271 usual residents at the census.
About 96% of people in BL4 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In BL4, 97.3% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: BL4
- Postcode area: [BL](https://openindex.co.uk/postcode/bl)
- Constituency: [Bolton South and Walkden †](https://openindex.co.uk/constituency/bolton-south-and-walkden)
- Council: [Bolton †](https://openindex.co.uk/bolton)
- Area: 10.34 km²
- People, mid-2024: 36,861*
- Neighbourhoods: 21
- Output areas: 107

* 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

[BL3](https://openindex.co.uk/postcode/bl3), [M28](https://openindex.co.uk/postcode/m28), [M26](https://openindex.co.uk/postcode/m26), [M38](https://openindex.co.uk/postcode/m38), [BL5](https://openindex.co.uk/postcode/bl5), [M27](https://openindex.co.uk/postcode/m27)

## Latest updates for BL4

- 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/BL4

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/bl4, or to one figure with its anchor, https://openindex.co.uk/postcode/bl4#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/bl4