The CPD is available for use by all Northern Ireland Mapping Agreement (NIMA) participants or those working on behalf of a NIMA participant. If you are unsure about your NIMA eligibility, please inquire with Land & Property Services (email@example.com).
Anyone working on behalf of NIMA participant must obtain the data from the NIMA participant and complete the relevant Sub-Licence form.
Non-NIMA customers can licence the product through the Address data and gazetteers section in the OSNI Online Map Shop.
The CPD provides a direct look-up between postcodes as of July 2023 and a range of geographies including Local Government Districts, Electoral Wards, Data Zones, Super Data Zones and Parliamentary Constituencies among others. A full list is available in the Guidance Notes, which can be viewed via the link below.
Before Downloading the CPD:
Users must sign and return the Terms and Conditions document to receive a password for access to download CPD from this website.
Central Postcode Directory - Download Formats
- Guidance Notes
- Introduction to Postal Geography & Geo-Referencing
- CPD Methodology Flow Chart
- Advice on Linking CPD Tables
- CPD Accuracy by Geography
While NISRA endeavour to ensure the CPD is as accurate as possible, NISRA can give no guarantee to the accuracy or completeness of the data presented. Further clarification on any aspect not already covered relating to the transfer or dissemination of the data on the Central Postcode Directory should be directed to the NISRA Geography team.