What area is the DT1 postcode in?

DT1 is a postcode district in Dorchester, Dorchester, South West, England. It is part of the DT postcode area.

How many addresses are in the DT1 postcode?

The DT1 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 DT1 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 DT1. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · South West

DT1 Postcode — Dorchester

DT1 is a postcode district in Dorchester, Dorchester, South West, England. Use the lookup below to explore addresses within this postcode district.

DT1

Postcode District

DT — Dorchester

Area

South West

Region

Royal Mail PAF

Data Source

Postcode Lookup — DT1 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "DT1 1AA",
    "quality": 1,
    "eastings": 371720,
    "northings": 142829,
    "country": "England",
    "nhs_ha": "South West",
    "longitude": -2.404,
    "latitude": 50.7372,
    "european_electoral_region": "South West",
    "primary_care_trust": "Dorchester",
    "region": "South West",
    "lsoa": "Dorchester 001A",
    "msoa": "Dorchester 001",
    "incode": "1AA",
    "outcode": "DT1",
    "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 DT1 Postcode District

The DT1 postcode district is part of the Dorchester (DT) postcode area, covering Dorchester and surrounding areas in South West, England.

Postcodes in the DT1 district follow the format DT1 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 DT1 postcode cover?

The DT1 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 DT1 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 DT1. The API returns all Royal Mail PAF addresses as structured JSON.

Is DT1 a valid UK postcode district?

Yes. DT1 is a Royal Mail postcode district in Dorchester, England. Full UK postcodes in this district follow the format DT1 followed by a digit and two letters (e.g. DT1 1AA).

DT1 Postcode — Dorchester

About the DT1 Postcode District

Frequently Asked Questions

Other Dorchester Postcode Districts