What area is the DT postcode in?

DT is a postcode district in Dorchester, Dorchester, South West, England. It is part of the DT postcode area.

How many addresses are in the DT postcode?

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

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

Royal Mail PAF · South West

DT Postcode — Dorchester

DT is a postcode district in Dorchester, Dorchester, South West, England. Use the lookup below to explore addresses within this postcode district.

Postcode District

DT — Dorchester

Area

South West

Region

Royal Mail PAF

Data Source

Postcode Lookup — DT DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "DT 1AA",
    "quality": 1,
    "eastings": 368612,
    "northings": 137901,
    "country": "England",
    "nhs_ha": "South West",
    "longitude": -2.4484,
    "latitude": 50.6928,
    "european_electoral_region": "South West",
    "primary_care_trust": "Dorchester",
    "region": "South West",
    "lsoa": "Dorchester 001A",
    "msoa": "Dorchester 001",
    "incode": "1AA",
    "outcode": "DT",
    "parliamentary_constituency": "Dorchester",
    "admin_district": "Dorchester",
    "parish": "Dorchester, unparished area",
    "admin_county": "South West",
    "admin_ward": "Dorchester Central",
    "ced": null,
    "ccg": "NHS South West",
    "nuts": "Dorchester",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the DT Postcode District

The DT postcode district is part of the Dorchester (DT) postcode area, covering Dorchester and surrounding areas in South West, England.

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

The wider Dorchester postcode area (DT) also covers: Weymouth, Bridport, Blandford Forum, Sherborne.

Frequently Asked Questions

What area does the DT postcode cover?

The DT postcode district covers Dorchester in Dorchester, South West, England. It is one of 11 districts in the DT postcode area.

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

Is DT a valid UK postcode district?

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

DT Postcode — Dorchester

About the DT Postcode District

Frequently Asked Questions

Other Dorchester Postcode Districts