What area is the IP31 postcode in?

IP31 is a postcode district in Ipswich, Ipswich, East of England, England. It is part of the IP postcode area.

How many addresses are in the IP31 postcode?

The IP31 postcode district covers Ipswich in Ipswich. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in IP31 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 IP31. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · East of England

IP31 Postcode — Ipswich

IP31 is a postcode district in Ipswich, Ipswich, East of England, England. Use the lookup below to explore addresses within this postcode district.

IP31

Postcode District

IP — Ipswich

Area

East of England

Region

Royal Mail PAF

Data Source

Postcode Lookup — IP31 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "IP31 1AA",
    "quality": 1,
    "eastings": 617672,
    "northings": 288150,
    "country": "England",
    "nhs_ha": "East of England",
    "longitude": 1.1096,
    "latitude": 52.0464,
    "european_electoral_region": "East of England",
    "primary_care_trust": "Ipswich",
    "region": "East of England",
    "lsoa": "Ipswich 001A",
    "msoa": "Ipswich 001",
    "incode": "1AA",
    "outcode": "IP31",
    "parliamentary_constituency": "Ipswich",
    "admin_district": "Ipswich",
    "parish": "Ipswich, unparished area",
    "admin_county": "East of England",
    "admin_ward": "Ipswich Central",
    "ced": null,
    "ccg": "NHS East of England",
    "nuts": "Ipswich",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the IP31 Postcode District

The IP31 postcode district is part of the Ipswich (IP) postcode area, covering Ipswich and surrounding areas in East of England, England.

Postcodes in the IP31 district follow the format IP31 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Ipswich postcode area (IP) also covers: Bury St Edmunds, Sudbury, Stowmarket, Felixstowe, Woodbridge.

Frequently Asked Questions

What area does the IP31 postcode cover?

The IP31 postcode district covers Ipswich in Ipswich, East of England, England. It is one of 31 districts in the IP postcode area.

How do I look up all addresses in the IP31 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 IP31. The API returns all Royal Mail PAF addresses as structured JSON.

Is IP31 a valid UK postcode district?

Yes. IP31 is a Royal Mail postcode district in Ipswich, England. Full UK postcodes in this district follow the format IP31 followed by a digit and two letters (e.g. IP31 1AA).

IP31 Postcode — Ipswich

About the IP31 Postcode District

Frequently Asked Questions

Other Ipswich Postcode Districts