What area is the TN21 postcode in?

TN21 is a postcode district in Tonbridge, Tonbridge, South East, England. It is part of the TN postcode area.

How many addresses are in the TN21 postcode?

The TN21 postcode district covers Tonbridge in Tonbridge. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in TN21 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 TN21. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · South East

TN21 Postcode — Tonbridge

TN21 is a postcode district in Tonbridge, Tonbridge, South East, England. Use the lookup below to explore addresses within this postcode district.

TN21

Postcode District

TN — Tonbridge

Area

South East

Region

Royal Mail PAF

Data Source

Postcode Lookup — TN21 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "TN21 1AA",
    "quality": 1,
    "eastings": 552866,
    "northings": 187673,
    "country": "England",
    "nhs_ha": "South East",
    "longitude": 0.1838,
    "latitude": 51.1412,
    "european_electoral_region": "South East",
    "primary_care_trust": "Tonbridge",
    "region": "South East",
    "lsoa": "Tonbridge 001A",
    "msoa": "Tonbridge 001",
    "incode": "1AA",
    "outcode": "TN21",
    "parliamentary_constituency": "Tonbridge",
    "admin_district": "Tonbridge",
    "parish": "Tonbridge, unparished area",
    "admin_county": "South East",
    "admin_ward": "Tonbridge Central",
    "ced": null,
    "ccg": "NHS South East",
    "nuts": "Tonbridge",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the TN21 Postcode District

The TN21 postcode district is part of the Tonbridge (TN) postcode area, covering Tonbridge and surrounding areas in South East, England.

Postcodes in the TN21 district follow the format TN21 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Tonbridge postcode area (TN) also covers: Tunbridge Wells, Crowborough, Hastings, Battle, Tenterden.

Frequently Asked Questions

What area does the TN21 postcode cover?

The TN21 postcode district covers Tonbridge in Tonbridge, South East, England. It is one of 40 districts in the TN postcode area.

How do I look up all addresses in the TN21 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 TN21. The API returns all Royal Mail PAF addresses as structured JSON.

Is TN21 a valid UK postcode district?

Yes. TN21 is a Royal Mail postcode district in Tonbridge, England. Full UK postcodes in this district follow the format TN21 followed by a digit and two letters (e.g. TN21 1AA).

TN21 Postcode — Tonbridge

About the TN21 Postcode District

Frequently Asked Questions

Other Tonbridge Postcode Districts