Useful links

This page provides useful links to the NISRA Boundary Application interactive map, as well as to Ordnance Survey of Northern Ireland and Open Data NI for sourcing digital boundaries beyond those available on the NISRA website.

NISRA Boundary Application

The NISRA Boundary Application is an interactive map created by Ordnance Survey of Northern Ireland (OSNI).

Boundaries for the main administrative and statistical geographies in Northern Ireland can be displayed, and the application also provides the location of postcodes based on the latest NISRA Central Postcode Directory (CPD). There is a search facility for individual addresses, while the CPD layer can be searched to obtain the location of postcodes of interest.


Ordnance Survey of Northern Ireland (OSNI) provides a wide range of digital mapping and spatial data products, many of which are available via the OSNI Online Map Shop. There is a helpdesk for customers using the OSNI Online Map Shop and a separate helpdesk for all other mapping enquiries.

Open Data NI

Some boundary maps are made available as open formats at the OpenDataNI portal. This portal has been developed as part of the Digital NI initiative. Digital NI aims to help establish a culture within Northern Ireland that develops and enhances Digital capability not just through interactions with Government, but also with local companies and throughout communities.

Within government the Digital Transformation Service is facilitating this cultural shift through a number of methods, transforming Government services, making data open and available, and encouraging and coaching those who lack digital skills.