What area is the CH66 postcode in?

CH66 is a postcode district in Chester, Chester, North West, England. It is part of the CH postcode area.

How many addresses are in the CH66 postcode?

The CH66 postcode district covers Chester in Chester. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in CH66 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 CH66. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · North West

CH66 Postcode — Chester

CH66 is a postcode district in Chester, Chester, North West, England. Use the lookup below to explore addresses within this postcode district.

CH66

Postcode District

CH — Chester

Area

North West

Region

Royal Mail PAF

Data Source

Postcode Lookup — CH66 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "CH66 1AA",
    "quality": 1,
    "eastings": 341858,
    "northings": 417132,
    "country": "England",
    "nhs_ha": "North West",
    "longitude": -2.8306,
    "latitude": 53.2084,
    "european_electoral_region": "North West",
    "primary_care_trust": "Chester",
    "region": "North West",
    "lsoa": "Chester 001A",
    "msoa": "Chester 001",
    "incode": "1AA",
    "outcode": "CH66",
    "parliamentary_constituency": "Chester",
    "admin_district": "Chester",
    "parish": "Chester, unparished area",
    "admin_county": "North West",
    "admin_ward": "Chester Central",
    "ced": null,
    "ccg": "NHS North West",
    "nuts": "Chester",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the CH66 Postcode District

The CH66 postcode district is part of the Chester (CH) postcode area, covering Chester and surrounding areas in North West, England.

Postcodes in the CH66 district follow the format CH66 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Chester postcode area (CH) also covers: Ellesmere Port, Crewe, Nantwich, Wrexham.

Frequently Asked Questions

What area does the CH66 postcode cover?

The CH66 postcode district covers Chester in Chester, North West, England. It is one of 24 districts in the CH postcode area.

How do I look up all addresses in the CH66 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 CH66. The API returns all Royal Mail PAF addresses as structured JSON.

Is CH66 a valid UK postcode district?

Yes. CH66 is a Royal Mail postcode district in Chester, England. Full UK postcodes in this district follow the format CH66 followed by a digit and two letters (e.g. CH66 1AA).

CH66 Postcode — Chester

About the CH66 Postcode District

Frequently Asked Questions

Other Chester Postcode Districts