How many addresses are in the NN18 postcode?

The NN18 postcode district covers Northampton in Northampton. The exact address count can be retrieved via the APITier Postcode Lookup API.

How do I look up addresses in NN18 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 NN18. The response returns all PAF addresses as structured JSON including building name, number, street, town, county, and geocoordinates.

Royal Mail PAF · East Midlands

NN18 Postcode — Northampton

Q: What area is the NN18 postcode in?

NN18 is a postcode district in Northampton, Northampton, East Midlands, England. It is part of the NN postcode area.

NN18 is a postcode district in Northampton, Northampton, East Midlands, England. Use the lookup below to explore addresses within this postcode district.

NN18

Postcode District

NN — Northampton

Area

East Midlands

Region

Royal Mail PAF

Data Source

Postcode Lookup — NN18 DistrictSample

{
  "_note": "Sample response — enter any postcode above and click Lookup for live data",
  "status": 200,
  "result": {
    "postcode": "NN18 1AA",
    "quality": 1,
    "eastings": 474564,
    "northings": 305910,
    "country": "England",
    "nhs_ha": "East Midlands",
    "longitude": -0.9348,
    "latitude": 52.2064,
    "european_electoral_region": "East Midlands",
    "primary_care_trust": "Northampton",
    "region": "East Midlands",
    "lsoa": "Northampton 001A",
    "msoa": "Northampton 001",
    "incode": "1AA",
    "outcode": "NN18",
    "parliamentary_constituency": "Northampton",
    "admin_district": "Northampton",
    "parish": "Northampton, unparished area",
    "admin_county": "East Midlands",
    "admin_ward": "Northampton Central",
    "ced": null,
    "ccg": "NHS East Midlands",
    "nuts": "Northampton",
    "codes": {
      "admin_district": "E07000000",
      "admin_county": "E10000000",
      "admin_ward": "E05000000",
      "parish": "E43000000",
      "parliamentary_constituency": "E14000000",
      "ccg": "E38000000",
      "lsoa": "E01000000",
      "msoa": "E02000000"
    }
  }
}

About the NN18 Postcode District

The NN18 postcode district is part of the Northampton (NN) postcode area, covering Northampton and surrounding areas in East Midlands, England.

Postcodes in the NN18 district follow the format NN18 nXX where n is a digit and XX are letters. Each inward code identifies a specific delivery walk within the district.

The wider Northampton postcode area (NN) also covers: Kettering, Wellingborough, Corby, Daventry, Towcester.

Frequently Asked Questions

What area does the NN18 postcode cover?

The NN18 postcode district covers Northampton in Northampton, East Midlands, England. It is one of 19 districts in the NN postcode area.

How do I look up all addresses in the NN18 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 NN18. The API returns all Royal Mail PAF addresses as structured JSON.

Is NN18 a valid UK postcode district?

Yes. NN18 is a Royal Mail postcode district in Northampton, England. Full UK postcodes in this district follow the format NN18 followed by a digit and two letters (e.g. NN18 1AA).

NN18 Postcode — Northampton

About the NN18 Postcode District

Frequently Asked Questions

Other Northampton Postcode Districts