What area is the WD3 postcode in?

WD3 is a postcode district in Watford, Watford, East of England, England. It is part of the WD postcode area.

How many addresses are in the WD3 postcode?

The WD3 postcode district covers Watford in Watford. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in WD3 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 WD3. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · East of England

WD3 Postcode — Watford

WD3 is a postcode district in Watford, Watford, East of England, England. Use the lookup below to explore addresses within this postcode district.

WD3

Postcode District

WD — Watford

Area

East of England

Region

Royal Mail PAF

Data Source

Postcode Lookup — WD3 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "WD3 1AA",
    "quality": 1,
    "eastings": 506750,
    "northings": 239799,
    "country": "England",
    "nhs_ha": "East of England",
    "longitude": -0.475,
    "latitude": 51.6108,
    "european_electoral_region": "East of England",
    "primary_care_trust": "Watford",
    "region": "East of England",
    "lsoa": "Watford 001A",
    "msoa": "Watford 001",
    "incode": "1AA",
    "outcode": "WD3",
    "parliamentary_constituency": "Watford",
    "admin_district": "Watford",
    "parish": "Watford, unparished area",
    "admin_county": "East of England",
    "admin_ward": "Watford Central",
    "ced": null,
    "ccg": "NHS East of England",
    "nuts": "Watford",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the WD3 Postcode District

The WD3 postcode district is part of the Watford (WD) postcode area, covering Watford and surrounding areas in East of England, England.

Postcodes in the WD3 district follow the format WD3 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Watford postcode area (WD) also covers: Rickmansworth, Chorleywood, Borehamwood, Radlett.

Frequently Asked Questions

What area does the WD3 postcode cover?

The WD3 postcode district covers Watford in Watford, East of England, England. It is one of 11 districts in the WD postcode area.

How do I look up all addresses in the WD3 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 WD3. The API returns all Royal Mail PAF addresses as structured JSON.

Is WD3 a valid UK postcode district?

Yes. WD3 is a Royal Mail postcode district in Watford, England. Full UK postcodes in this district follow the format WD3 followed by a digit and two letters (e.g. WD3 1AA).

WD3 Postcode — Watford

About the WD3 Postcode District

Frequently Asked Questions

Other Watford Postcode Districts