What area is the BL3 postcode in?

BL3 is a postcode district in Bolton, Bolton, North West, England. It is part of the BL postcode area.

How many addresses are in the BL3 postcode?

The BL3 postcode district covers Bolton in Bolton. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in BL3 programmatically?

Use the APITier Postcode Lookup API: GET https://postcode.apitier.com/v1/postcodes/{postcode}?x-api-key=YOUR_KEY — where the postcode begins with BL3. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · North West

BL3 Postcode — Bolton

BL3 is a postcode district in Bolton, Bolton, North West, England. Use the lookup below to explore addresses within this postcode district.

BL3

Postcode District

BL — Bolton

Area

North West

Region

Royal Mail PAF

Data Source

Postcode Lookup — BL3 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "BL3 1AA",
    "quality": 1,
    "eastings": 372714,
    "northings": 462287,
    "country": "England",
    "nhs_ha": "North West",
    "longitude": -2.3898,
    "latitude": 53.6152,
    "european_electoral_region": "North West",
    "primary_care_trust": "Bolton",
    "region": "North West",
    "lsoa": "Bolton 001A",
    "msoa": "Bolton 001",
    "incode": "1AA",
    "outcode": "BL3",
    "parliamentary_constituency": "Bolton",
    "admin_district": "Bolton",
    "parish": "Bolton, unparished area",
    "admin_county": "North West",
    "admin_ward": "Bolton Central",
    "ced": null,
    "ccg": "NHS North West",
    "nuts": "Bolton",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the BL3 Postcode District

The BL3 postcode district is part of the Bolton (BL) postcode area, covering Bolton and surrounding areas in North West, England.

Postcodes in the BL3 district follow the format BL3 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Bolton postcode area (BL) also covers: Horwich, Farnworth, Westhoughton, Radcliffe.

Frequently Asked Questions

What area does the BL3 postcode cover?

The BL3 postcode district covers Bolton in Bolton, North West, England. It is one of 10 districts in the BL postcode area.

How do I look up all addresses in the BL3 postcode?

Use the live lookup widget above or call the APITier Postcode Lookup API: GET https://postcode.apitier.com/v1/postcodes/{full postcode}?x-api-key=YOUR_KEY. Replace {full postcode} with any complete postcode beginning BL3. The API returns all Royal Mail PAF addresses as structured JSON.

Is BL3 a valid UK postcode district?

Yes. BL3 is a Royal Mail postcode district in Bolton, England. Full UK postcodes in this district follow the format BL3 followed by a digit and two letters (e.g. BL3 1AA).

BL3 Postcode — Bolton

About the BL3 Postcode District

Frequently Asked Questions

Other Bolton Postcode Districts