Code-Point
What Code-Point provides you with
Authoritative data
Coverage of over 1.7 million postcodes in Great Britain and Northern Ireland updated quarterly – accurate depiction of all live postcodes in GB and NI.
Get more from your postcode data
Understand the split of residential and commercial delivery points within a postcode area for a greater depth of analysis.
Interoperable data
Combine your statistical and health datasets with postcode data by linking to ONS administrative codes and Health Authority codes provided with Code-Point.
Use cases
Code-Point data provides:
- information about the number and type of postal delivery points in the postcode;
- a positional quality indicator (PQI), indicating the quality of the data underlying the Code-Point location coordinate (CPLC);
- the country indicator (either England, Scotland, Wales or Northern Ireland);
- the postcode type;
- the National Health Service region and area codes; and
- the local government county, district and ward codes.
Additional information
Code-Point postcode coverage
Code-Point includes 121 postcode areas in England, Scotland, Wales and Northern Ireland, but does not include the Isle of Man or the Channel Islands.
It can take some time for a new postcode to work its way through the system into Code-Point
Until our surveyors have visited the area to complete the very precise large-scale mapping, we allocate a calculated map reference to the postcode that, depending on the level of development in the area, can be somewhat inaccurate. When this has been done, a positional quality indicator in the Code-Point record makes it clear that the coordinates provided are temporary, and will be improved to a full quality match as soon as possible.
Code-Point accuracy and resolution
Code-Point is created by taking the average of the coordinates of all the individual addresses in a postcode (provided we have any of sufficient quality), then snapping to the nearest of those addresses. Code-Point then delivers the coordinates of that address, as representative of the whole postcode, to a resolution of 1 metre.
The accuracy of a Code-Point Open record could be expressed as, that the coordinated position will always be within the notional geographical extent of the postcode. The accuracy of each postcode unit coordinate pair is defined by the positional quality indicator (PQI) which provides a quality statement of a Code-Point record.
Code-Point contains five admin ward codes for postcodes on the Isles of Scilly
These have been issued by ONS for statistical purposes only, because there are no wards on the Isles of Scilly. The Codelist.xls file supplied with Code-Point is generated from Boundary-Line. Boundary-Line does not contain these ward codes as they do not exist for political purposes. Therefore, these codes are not available in the Codelist.xls file supplied in the Doc folder with Code-Point. All other ward codes should exist in both Code-Point and the Codelist.xls file.
What administrative and NHS codes are included in each Administrative and NHS field?
|
Column |
Object definition |
|
Administrative County |
|
|
Administrative District |
|
|
Administrative Ward |
|
|
NHS Regional Health Authority |
|
|
NHS Health Authority |
|