Postcodes / Zipcodes map data
for Ireland

Postcodes, or zipcodes, are an important tool for geographic planning in Ireland. Originally developed to streamline postal delivery, postcodes are now commonly referred to as “the new geography”. They have evolved to become an integral part of the business planning process.

Postcodes / Zipcodes map data for Ireland

Postcodes are a simple but convenient way to locate customers, assets, competitors – in fact, anything with an address. Enriching your address data with coordinates is a process known as geocoding and is the first step in adding location intelligence to your data assets located in Ireland.

Postcode centroids (centre points) are suitable for coarse-level searches and geocoding, while postcode regions (polygons) can be highly effective for visualisation purposes.

We provide map data for Ireland, as both centroids and regions, with seamless transitions across borders with neighbouring countries. The data is available in all common GIS data formats.

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Ireland –

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Country Summary

Situated in the North Atlantic, to the west of Great Britain, the island of Ireland is the third largest island in Europe. Geopolitically the island is divided into The Republic of Ireland which occupies 5/6 of the island, and Northern Ireland which, along with Great Britain, forms the United Kingdom. The capital city is Dublin.
Historically there has been unrest. In 1921, the British government split the island into the protestant north and catholic south. A year later the south seceded to form an independent state. There followed years of conflict, until, in 1999 a communal power-sharing agreement was reached.
Ireland is a parliamentary democracy, based upon the British system. It is divided into twenty-six counties. It ranks among one of the most developed nations as well as one of the wealthiest countries in the word in terms of GDP per capita.
The population dropped dramatically in the latter part of the nineteenth century due to famine and emigration. Large numbers of Irish left due to poverty, but the prosperity of more recent years has seen a number of European immigrants enter the country as well as some returning nationals, so population is rising again.
It has an open economy, and is a highly developed knowledge economy, especially in the areas of life science, agribusiness, food tech and technology.
Culturally the country is very rich and due to the history of emigration, the Irish culture has pervaded across the globe and given it an international cultural presence. It has an immense literary and musical heritage, as well as art and science.
Ireland is a member of the European Union.

The power of postcodes

Postcodes, or zipcodes if you prefer, are a powerful tool for geographic visualisation and analysis in Ireland. While primarily designed to help deliver the mail, their standardised nature makes them useful for locating assets. Given a reference data set of postcodes with coordinates, it is possible to take a database of addresses (say, customers) and use the postcode as a common link or join. This allows the address database to be enriched by coordinates – a process known as geocoding. While these coordinates are only approximate (the centroid or centre point of each postcode), they allow the addresses to now be placed on a map where geographic patterns, such as clusters, may be revealed.

Postcode regions are polygon shapes which capture all addresses with a same postcode. They are often irregular shapes and sometimes feature holes and enclaves. Despite this, it is possible to use GIS or mapping software to assign colour to these regions to form a thematic map, also known as a choropleth map. While some care is usually required to ensure that the visualisation is statistically valid, thematic maps are visually powerful and a great way to communicate a variable across a geographic area.

We provide map data for Ireland, as both centroids and regions data. Compatible postcodes / zipcodes data is also available for other countries, with seamless transitions across borders.

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