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Sample characteristics: Ireland

Census/survey characteristics
Type Census
Title Census of Population of Ireland, 1971
Statistical agency Central Statistics Office
Population universe All persons present in Ireland at the time of census, including visitors and those in residence. Usual residents temporarily absent from the State and members of the Defence Forces, who on Census night, were serving abroad with the United Nations were excluded.
De jure or de facto De facto
Census/survey day April 18, 1971
Questionnaire There are 5 forms: Form A (Basic household Census form), Form B (summary of the population figures), Form C (summary of the household and population figures), Form D (for communal establishments), Form N (relevant note sto be attached with Form A) and Form P (for enumerations of guests in hotels and guest houses). The information from Form A is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 296,878
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings Permanent structures consisting of walls and a roof (whether or not intended for occupation and whether or not occupied on Census night).
Households A private household is defined as a group of persons living together (usually but not necessarily related), jointly occupying the whole or part of a private dwelling house, flat, or temporary dwelling and sharing a common budget. A person who lives alone or a person who occupies only part of the living accommodation but does not normally share a common budget with the other occupants is regarded as a separate household.
Collective dwellings A non-private household is a boarding house, hotel, guest house, barrack, hospital, nursing home, boarding schools, religious institution, welfare institution, prison, or ship, etc. However, proprietors and manager of hotels, principals of boarding schools, persons in charge of various other types of institutions and members of staff who, with their families, occupy flats on the premises are considered as private households.
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 1979
Statistical agency Central Statistics Office
Population universe All persons present in Ireland at the time of census, including visitors and those in residence. Usual residents temporarily absent from the State and members of the Defence Forces, who on Census night, were serving abroad with the United Nations were excluded.
De jure or de facto De facto
Census/survey day April 1, 1979
Questionnaire The information is based on Form A - Household Schedule.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 337,686
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Households A private household is defined as a group of persons living together (usually but not necessarily related), jointly occupying the whole or part of a private dwelling house, flat, or temporary dwelling and sharing a common budget. A person who lives alone or a person who occupies only part of the living accommodation but does not normally share a common budget with the other occupants is regarded as a separate household.
Collective dwellings A non-private household is a boarding house, hotel, guest house, barrack, hospital, nursing home, boarding schools, religious institution, welfare institution, prison, or ship, etc. However, proprietors and manager of hotels, principals of boarding schools, persons in charge of various other types of institutions and members of staff who, with their families, occupy flats on the premises are considered as private households.
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 1981
Statistical agency Central Statistics Office
Population universe All persons present in Ireland at the time of census, including visitors and those in residence. Usual residents temporarily absent from the State and members of the Defence Forces, who on Census night, were serving abroad with the United Nations were excluded.
De jure or de facto De facto
Census/survey day April 5, 1981
Questionnaire There are 2 forms to be completed by households or individuals: (1) Form A - Census Household Schedule; and (2) Form A(P) - completed by persons in certain circumstances. The information from Form A is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 344,291
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling unit is defined as living accommodation which is occupied or, of vacant, is intended for occupation, by one household.
Households A private household is defined as a group of persons living together (usually but not necessarily related), jointly occupying the whole or part of a private dwelling house, flat, or temporary dwelling and sharing a common budget. A person who lives alone or a person who occupies only part of the living accommodation but does not normally share a common budget with the other occupants is regarded as a separate household.
Collective dwellings A non-private household is a boarding house, hotel, guest house, barrack, hospital, nursing home, boarding schools, religious institution, welfare institution, prison, or ship, etc. However, proprietors and manager of hotels, principals of boarding schools, persons in charge of various other types of institutions and members of staff who, with their families, occupy flats on the premises are considered as private households.
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 1986
Statistical agency Central Statistics Office
Population universe All persons present in Ireland at the time of census, including visitors and those in residence. Usual residents temporarily absent from the State and members of the Defence Forces, who on Census night, were serving abroad with the United Nations were excluded.
De jure or de facto De facto
Census/survey day April 13, 1986
Questionnaire There are 2 forms to be completed by households or individuals: (1) Form A - Census Household Schedule; and (2) Form A(P) - completed by persons in certain circumstances. The information from Form A is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 355,020
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling unit is defined as living accommodation which is occupied or, if vacant, is intended for occupation, by one household.
Households A private household is defined as a group of persons living together (usually but not necessarily related), jointly occupying the whole or part of a private dwelling house, flat, or temporary dwelling and sharing a common budget. A person who lives alone or a person who occupies only part of the living accommodation but does not normally share a common budget with the other occupants is regarded as a separate household.
Collective dwellings A non-private household is a boarding house, hotel, guest house, barrack, hospital, nursing home, boarding schools, religious institution, welfare institution, prison, or ship, etc. However, proprietors and manager of hotels, principals of boarding schools, persons in charge of various other types of institutions and members of staff who, with their families, occupy flats on the premises are considered as private households.
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 1991
Statistical agency Central Statistics Office
Population universe All persons present in Ireland at the time of census, including visitors and those in residence. Usual residents temporarily absent from the State and members of the Defence Forces, who on Census night, were serving abroad with the United Nations were excluded.
De jure or de facto De facto
Census/survey day April 21, 1991
Questionnaire There are 2 forms to be completed by households or individuals: (1) Form A - Census Household Schedule; and (2) Form A(P) - completed by persons in certain circumstances. The information from Form A is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 353,149
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling unit is defined as living accommodation which is occupied or, if vacant, is intended for occupation, by one household.
Households A private household is defined as a group of persons living together (usually but not necessarily related), jointly occupying the whole or part of a private dwelling house, flat, or temporary dwelling and sharing a common budget. A person who lives alone or a person who occupies only part of the living accommodation but does not normally share a common budget with the other occupants is regarded as a separate household.
Collective dwellings A non-private household is a boarding house, hotel, guest house, barrack, hospital, nursing home, boarding schools, religious institution, welfare institution, prison, or ship, etc. However, proprietors and manager of hotels, principals of boarding schools, persons in charge of various other types of institutions and members of staff who, with their families, occupy flats on the premises are considered as private households.
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 1996
Statistical agency Central Statistics Office
Population universe All persons present in Ireland on the census night, including visitors and those in residence. Usual residents who were temporarily absent were excluded.
De jure or de facto De facto
Census/survey day April 28, 1996
Questionnaire There are 2 forms to be completed by households or individuals: (1) Form A - Census Form (or Schedule); and (2) Form A(P) - Personal Form. The information from Form A is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 365,323
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling unit is living accommodation which is occupied or, if vacant, is intended for occupation, by one or more households.
Households A private household comprises either one person living alone or a group of people (not necessarily related) living at the same address with common housekeeping arrangements - that is, sharing at least one meal a day or sharing a living room or sitting room.
Collective dwellings Examples of non-private households are establishments or institutions. These include hotels, country clubs, guest houses, B
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 2002
Statistical agency Central Statistics Office
Population universe All persons present in Ireland on the census night, including visitors and those in residence. Usual residents who were temporarily absent were included but asked a subset of questions.
De jure or de facto De jure and de facto
Census/survey day April 28, 2002
Questionnaire There are 5 forms completed by the public: a. Household Form ; b. Continuation Form; c. Listing Form ; d. Individual Form ; and d. Large Print Form. The information from the Household Form is us\ed here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 410,688
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling unit is living accommodation which is occupied or, if vacant, is intended for occupation, by one or more households.
Households A private household comprises either one person living alone or a group of people (not necessarily related) living at the same address with common housekeeping arrangements - that is, sharing at least one meal a day or sharing a living room or sitting room.
Collective dwellings Communal Establishments (CEs) or non-private households, including, hotel, boarding house, guest house, bed and breakfast, hostel, educational establishment, religious community, children's home, nursing home, hospital/nurses' home, prison, defence establishment (including ships), civilian ships, boats and barges, garda station, and holiday campsite
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 2006
Statistical agency Central Statistics Office
Population universe All persons present in Ireland on the census night, including visitors and those in residence. Usual residents who were temporarily absent were included but asked a subset of questions.
De jure or de facto De jure and de facto
Census/survey day April 23, 2006
Questionnaire There are 4 forms completed by the public: a. Household Form (main census form); b. Listing Form ; c. Individual Form ; and d. Large Print Form. The information from the Household Form is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 440,314
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling unit is living accommodation which is occupied or, if vacant, is intended for occupation, by one or more households.
Households A private household comprises either one person living alone or a group of people (not necessarily related) living at the same address with common housekeeping arrangements - that is, sharing at least one meal a day or sharing a living room or sitting room.
Collective dwellings Communal Establishments (CEs) or non-private households, including, hotel, boarding house, guest house, bed and breakfast, hostel, educational establishment, religious community, children's home, nursing home, hospital/nurses' home, prison, defence establishment (including ships), civilian ships, boats and barges, garda station, and holiday campsite
Census/survey characteristics
Type Census
Title Census of Population of Ireland, 2011
Statistical agency Central Statistics Office
Population universe All persons present in Ireland on the census night, including visitors and those in residence. Usual residents who were temporarily absent were included but asked a subset of questions.
De jure or de facto De jure and de facto
Census/survey day April 10, 2011
Field work period ----
Questionnaire There are 3 forms completed by the public: a. Household Form (main census form); b. Listing Form (for communal establishments only); and c. Individual Form. The information from the Household Form is used here.
Type of fieldwork Direct and self-enumeration
Microdata sample characteristics
Sample design A 10% random sample of the recoded household records from each county was selected. The records within each county were sorted randomly before output to the sample file.
Sample fraction 10%
Sample size (person records) 474,353
Sample weights Self-weighting (expansion factor=10)
Units identified in microdata
Dwellings No
Vacant units No
Households Yes
Collective dwellings Yes
Smallest geography Region
Unit definitions
Dwellings A dwelling is a self contained living accommodation which is occupied or, if vacant, is intended for occupation, by one or more households.
Households A private household comprises either one person living alone or a group of people (not necessarily related) living at the same address with common housekeeping arrangements - that is, sharing at least one meal a day or sharing a living room or sitting room.
Collective dwellings Communal Establishments (CEs) or non-private households are establishments providing managed (full-time or part-time supervision) residential accommodation. This includes hotel, boarding house, guest house, bed and breakfast, hostel, educational establishment, religious community, children's home, nursing home, hospital/nurses' home, prison, defence establishment (including ships), civilian ships, boats and barges, garda station, and holiday campsite. Boarding houses with less than five boarders on Census Night are treated as private households.