This dataset provides Census 2021 estimates that classify usual residents aged 3 and over in Northern Ireland who can speak Irish by frequency of speaking Irish. The estimates are as at census day, 21 March 2021.

The census collected information on the usually resident population of Northern Ireland on census day (21 March 2021). Initial contact letters or questionnaire packs were delivered to every household and communal establishment, and residents were asked to complete online or return the questionnaire with information as correct on census day. Special arrangements were made to enumerate special groups such as students, members of the Travellers Community, HM Forces personnel etc. The Census Coverage Survey (an independent doorstep survey) followed between 12 May and 29 June 2021 and was used to adjust the census counts for under-enumeration.

Please be advised that there are issues with the Small Area boundary dataset generalised to 20m which affect Small Area 268014010 in Ballygall D, Dublin City. The Small Area boundary dataset generalised to 20m is in the process of being revised and the updated datasets will be available as soon as the boundaries are amended. This feature layer was created using Census 2016 data produced by the Central Statistics Office (CSO) and Small Areas national boundary data (generalised to 20m) produced by Tailte Éireann. The layer represents Census 2016 theme 3.1, population aged 3+ by ability to speak Irish. Attributes include population breakdown by ability to speak Irish (e.g. yes, no, not stated). Census 2016 theme 3 represents Irish Language. The Census is carried out every five years by the CSO to determine an account of every person in Ireland. The results provide information on a range of themes, such as, population, housing and education. The data were sourced from the CSO. The Small Area Boundaries were created with the following credentials. National boundary dataset. Consistent sub-divisions of an ED. Created not to cross some natural features. Defined area with a minimum number of GeoDirectory building address points. Defined area initially created with minimum of 65 – approx. average of around 90 residential address points. Generated using two bespoke algorithms which incorporated the ED and Townland boundaries, ortho-photography, large scale vector data and GeoDirectory data. Before the 2011 census they were split in relation to motorways and dual carriageways. After the census some boundaries were merged and other divided to maintain privacy of the residential area occupants. They are available as generalised and non generalised boundary sets.

Population Aged 3 Years and Over who speak Irish Daily within the Education System (Number) by Regional Authority, Frequency of Speaking Irish, CensusYear and Sex

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SAP2022T3T1NUTS - Population aged 3 years and over by Ability to Speak Irish. Published by Central Statistics Office. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).Population aged 3 years and over by Ability to Speak Irish...

This feature layer was created using Census 2016 data produced by the Central Statistics Office (CSO) and Local Electoral Area boundary data (generalised to 20m) produced by Tailte Éireann. The layer represents Census 2016 theme 3.1, population aged 3+ by ability to speak Irish. Attributes include population breakdown by ability to speak Irish (e.g. yes, no, not stated). Census 2016 theme 3 represents Irish Language. The Census is carried out every five years by the CSO to determine an account of every person in Ireland. The results provide information on a range of themes, such as, population, housing and education. The data were sourced from the CSO.For the purposes of County Council and Corporation elections each county and city is divided into Local Electoral Areas (LEAs) which are constituted on the basis of Orders made under the Local Government Act, 1941. In general, LEAs are formed by aggregating Electoral Divisions. However, in a number of cases Electoral Divisions are divided between LEAs to facilitate electors. The current composition of the LEAs have been established by Statutory Instruments No’s 427-452/2008, 503-509/2008 and 311/1998.

C0925 - Population Aged 3 Years and Over who speak Irish Daily within the Education System. Published by Central Statistics Office. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).Population Aged 3 Years and Over who speak Irish Daily within the Education System...

SAP2011T3T1CTY - Population aged 3 years and over by ability to speak Irish. Published by Central Statistics Office. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).Population aged 3 years and over by ability to speak Irish...

Please be advised that there are issues with the Small Area boundary dataset generalised to 20m which affect Small Area 268014010 in Ballygall D, Dublin City. The Small Area boundary dataset generalised to 20m is in the process of being revised and the updated datasets will be available as soon as the boundaries are amended. This feature layer was created using Census 2016 data produced by the Central Statistics Office (CSO) and Small Areas national boundary data (generalised to 20m) produced by Tailte Éireann. The layer represents Census 2016 theme 3.2, Irish speakers aged 3+ by frequency of speaking Irish. Attributes include population breakdown by frequency of speaking Irish and sex (e.g. daily within education system - males, weekly only outside the education system - females). Census 2016 theme 3 represents Irish Language. The Census is carried out every five years by the CSO to determine an account of every person in Ireland. The results provide information on a range of themes, such as, population, housing and education. The data were sourced from the CSO.The Small Area Boundaries were created with the following credentials. National boundary dataset. Consistent sub-divisions of an ED. Created not to cross some natural features. Defined area with a minimum number of GeoDirectory building address points. Defined area initially created with minimum of 65 – approx. average of around 90 residential address points. Generated using two bespoke algorithms which incorporated the ED and Townland boundaries, ortho-photography, large scale vector data and GeoDirectory data. Before the 2011 census they were split in relation to motorways and dual carriageways. After the census some boundaries were merged and other divided to maintain privacy of the residential area occupants. They are available as generalised and non generalised boundary sets.

This feature layer was created using Census 2016 data produced by the Central Statistics Office (CSO) and Local Electoral Area boundary data (generalised to 20m) produced by Tailte Éireann. The layer represents Census 2016 theme 3.2, Irish speakers aged 3+ by frequency of speaking Irish. Attributes include population breakdown by frequency of speaking Irish and sex (e.g. daily within education system - males, weekly only outside the education system - females). Census 2016 theme 3 represents Irish Language. The Census is carried out every five years by the CSO to determine an account of every person in Ireland. The results provide information on a range of themes, such as, population, housing and education. The data were sourced from the CSO.For the purposes of County Council and Corporation elections each county and city is divided into Local Electoral Areas (LEAs) which are constituted on the basis of Orders made under the Local Government Act, 1941. In general, LEAs are formed by aggregating Electoral Divisions. However, in a number of cases Electoral Divisions are divided between LEAs to facilitate electors. The current composition of the LEAs have been established by Statutory Instruments No’s 427-452/2008, 503-509/2008 and 311/1998.

This feature layer was created using Census 2016 data produced by the Central Statistics Office (CSO) and NUTS 3 boundary data (generalised to 100m) produced by Tailte Éireann. The layer represents Census 2016 theme 3.1, population aged 3+ by ability to speak Irish. Attributes include population breakdown by ability to speak Irish (e.g. yes, no, not stated). Census 2016 theme 3 represents Irish Language.The Census is carried out every five years by the CSO to determine an account of every person in Ireland. The results provide information on a range of themes, such as, population, housing and education. The data were sourced from the CSO. NUTS 3 boundaries generalised to 100m. The Nomenclature of Territorial Units for Statistics (NUTS) were drawn up by Eurostat in order to define territorial units for the production of regional statistics across the European Union. The NUTS classification has been used in EU legislation since 1988, but it was only in 2003 that the EU Member States, the European Parliament and the Commission established the NUTS regions within a legal framework (Regulation (EC) No 1059/2003). The Irish NUTS 3 regions comprise the eight Regional Authorities established under the Local Government Act, 1991 (Regional Authorities) (Establishment) Order, 1993 which came into operation on January 1st 1994. The NUTS 2 regions, which were proposed by Government and agreed to by Eurostat in 1999, are groupings of the Regional Authorities.

This feature layer was created using Census 2016 data produced by the Central Statistics Office (CSO) and Settlements boundary data (generalised to 20m) produced by Tailte Éireann. The layer represents Census 2016 theme 3.2, Irish speakers aged 3+ by frequency of speaking Irish. Attributes include population breakdown by frequency of speaking Irish and sex (e.g. daily within education system - males, weekly only outside the education system - females). Census 2016 theme 3 represents Irish Language. The Census is carried out every five years by the CSO to determine an account of every person in Ireland. The results provide information on a range of themes, such as, population, housing and education. The data were sourced from the CSO.In order to distinguish between the urban and rural population for census analysis, the boundaries of distinct settlements need to be defined. This requires the creation of suburbs and extensions to existing cities and legal towns as well as delineating boundaries for settlements which are not legally defined (called Census towns). From 1971 to 2006, Census towns were defined as a cluster of fifty or more occupied dwellings where, within a radius of 800 metres there was a nucleus of thirty occupied dwellings (on both sides of a road, or twenty on one side of a road), along with a clearly defined urban centre e.g. a shop, a school, a place of worship or a community centre. Census town boundaries where extended over time where there was an occupied dwelling within 200 metres of the existing boundary. To avoid the agglomeration of adjacent towns caused by the inclusion of low density one off dwellings on the approach routes to towns, the 2011 criteria were tightened, in line with UN criteria. In Census 2011 a new Census town was defined as being a cluster with a minimum of 50 occupied dwellings, with a maximum distance between any dwelling and the building closest to it of 100 metres, and where there was evidence of an urban centre (shop, school etc). The proximity criteria for extending existing 2006 Census town boundaries was also amended to include all occupied dwellings within 100 metres of an existing building. Other information based on Tailte Éireann mapping and orthogonal photography was taken into account when extending boundaries. Boundary extensions were generally made to include the land parcel on which a dwelling was built or using other physical features such as roads, paths etc. Extensions to the environs and suburbs of legal towns and cities were also constructed using the 100 metre proximity rule applied to Census towns. For census reports, urban settlements are towns with a population of 1,500 or more, while settlements with a population of less than 1,500 are classified as rural.

Population aged 3 years and over by ability to speak Irish by Built Up Urban Area. (Census 2022 Theme 3 Table 1 )Census 2022 table 3.1 is population aged 3+ by ability to speak Irish. Details include population counts by ability to speak Irish. Census 2022 theme 3 is Irish Language. Built Up Areas (BUAs) are a new type of urban geography that define towns. They are the result of a collaboration between the CSO, Tailte Éireann and the Department of Housing, Local Government and Heritage. BUAs are made up of whole Small Areas which eliminates the possibility of statistical disclosure. Coordinate reference system: Irish Transverse Mercator (EPSG 2157). These boundaries are based on 20m generalised boundaries sourced from Tailte Éireann Open Data Portal. CSO Urban Areas 2022

Irish speakers aged 3 years and over by frequency of speaking Irish by Province. (Census 2022 Theme 3 Table 2 )Census 2022 table 3.2 is Irish speakers aged 3+ by frequency of speaking Irish. Details include population by frequency of speaking Irish and sex. Census 2022 theme 3 is Irish Language. Ireland is divided into four provinces - Leinster, Ulster, Munster and Connacht. They do not have any administrative functions and they are relevant for a number of historical, cultural and sporting reasons. The borders of the provinces coincide with the boundaries of counties. Three of the nine counties in Ulster are within the jurisdiction of the State.Coordinate reference system: Irish Transverse Mercator (EPSG 2157). These boundaries are based on 20m generalised boundaries sourced from Tailte Éireann Open Data Portal. Provinces - National Statutory Boundaries - 2019This dataset is provided by Tailte Éireann

Irish speakers aged 3 years and over by frequency of speaking Irish by Local Authorities. (Census 2022 Theme 3 Table 2 )Census 2022 table 3.2 is Irish speakers aged 3+ by frequency of speaking Irish. Details include population by frequency of speaking Irish and sex. Census 2022 theme 3 is Irish Language. The country is divided into 31 administrative counties/cities. Outside Dublin, there are 23 administrative counties and four cities: Cork, Limerick, Waterford and Galway. There are four local authority areas in Dublin: Dublin City and the three administrative counties of Dún Laoghaire-Rathdown, Fingal and South Dublin. The Local Government Reform Act 2014 Section 9 provided for the amalgamation of the city and county councils in Limerick, Waterford, and North Tipperary and South Tipperary County Councils.Coordinate reference system: Irish Transverse Mercator (EPSG 2157). These boundaries are based on 20m generalised boundaries sourced from Tailte Éireann Open Data Portal. This dataset is provided by Tailte Éireann, Administrative Counties 2019