“PostZon” data, or geographic data, primarily provides postcode to Longitude and Latitude conversion. This conversation can be used to calculate the straight line distance between two postcodes, which is provided in all of our API offerings.
This data can be taken to the next level to provide a “Nearest Store/Service” locator for a web site. This provides your customers a means of finding their nearest store, given their home postcode.
This is specialised data such as OS reference, Longitude, Latitude, NHS District , Health Authority codes, Local Authority Electoral Ward codes. The PostZon data has been consolidated from various sources, such as Ordinate Services, NHS, etc. The most useful information is Longitude and Latitude.
Note: Some Postcodes return no PostZon Data, such as PO Boxes. It is a good idea to test any bespoke program against such postcodes. Examples are AB10 1BH, AB10 1DQ, AB10 1DU, AB10 1EP.
The distance between two postcodes can be returned. Simply call with Postcode and “Home postcode” provided in the parameters. Our service will then return the distance in km. So approximate charges could be applied to a customer based on the straight line distance.
This is the main use of PostZon data. Simply call with the target Postcode and the PostZon data service will return the Longitude and Latitude. Ideal for mapping and calculating distances.
To get the PostZon record by Longtitude/Latitude, (closest within 10Km) set postcode to the "Longtitude|Latitude" (separated by |). The Postcode found will be returned in pz_postcode.
To get the Longitude and Latitude of a Town, simply provide the Town name + “,SPACE“ + County in the postcode field. The Longitude and Latitude will then be returned. It is suggested that the town list is displayed using a AJAX search box.
The "Postzon" Geographical Data is accessed by one of our extensive API’s. Simply click on the link below, and expand the appropriate API section. All "Postzon" Geographical Data is list under each API interface.
This type of license returns:
Easting and Northings, the OS easting of
the outcode, distance in metres due east from the south west
of the UK.
Longitude and Latitude, using the WGS84
geodetic datum, used for mapping, and calculating distance
between two postcodes
OS reference, OS representation of the
Postcode, returned when searching by OS
Ref, or Longitude/Latitude
This data is available through our programming interfaces
only, and can be retrieved by Postcode, OS Ref, or
Longitude/Latitude. These interfaces also contain functions
for working out the distance between two postcodes.
Postcodes, which relate to PO Boxes, are not included in
this file, because they DO NOT have a location.
The accuracy of the Longitude/Latitude varies. Can be
between 10-150 m