Families and children in the UK by family type including married couples, cohabiting couples and lone parents. Also shows household size and people living alone.

There were estimated to be around 12.8 million married couple families in the United Kingdom as of 2024, with a further 3.3 million opposite-sex cohabiting couple family families, and 2.6 million lone-mother families.

Presents recent estimates of the number of families by type, people in families by family type and children in families by type. Types of family include married couple families, cohabiting couple families and lone parent families. Tables on household size, household types and people in different household types are also provided. These include estimates of people living alone, multi-family households and households where members are all unrelated. Source agency: Office for National Statistics Designation: National Statistics Language: English Alternative title: Families and Households

Presents recent estimates of the number of families by type, people in families by family type and children in families by type. Types of family include married couple families, cohabiting couple families and lone parent families. Tables on household size, household types and people in different household types are also provided. These include estimates of people living alone, multi-family households and households where members are all unrelated.

Source agency: Office for National Statistics

Designation: National Statistics

Language: English

Alternative title: Families and Households

Dataset population: Households

Household composition

Household composition classifies households according to the relationships between the household members. Households consisting of one family and no other usual residents are classified according to the type of family (married, same-sex civil partnership or cohabiting couple family, or lone parent family) and the number of dependent children. Other households are classified by the number of people, the number of dependent children, or whether the household consists only of students or only of people aged 65 and over.

In Northern Ireland only:

• A dependent child is a person in a household aged 0 to 15 (whether or not in a family) or a person aged 16 to 18 who is a full-time student in a family with parent(s).
• A family consists of a couple (married, same-sex civil partnership or cohabiting) with or without children, or a lone parent and their children. It also includes a married, same-sex civil partnership or cohabiting couple with their grandchildren or a lone grandparent with his or her grandchildren, if there is no parent in the intervening generation in the household. A family will also include step-children when their parent is part of the couple.

Labour Force Survey (LFS) estimates including measures of uncertainty of the number of families by specific family types, for regions of England and also Scotland, Wales and Northern Ireland.

Dataset population: Households

Household composition

Household composition classifies households according to the relationships between the household members. Households consisting of one family and no other usual residents are classified according to the type of family (married, same-sex civil partnership or cohabiting couple family, or lone parent family) and the number of dependent children. Other households are classified by the number of people, the number of dependent children, or whether the household consists only of students or only of people aged 65 and over.

In Northern Ireland only:

• A dependent child is a person in a household aged 0 to 15 (whether or not in a family) or a person aged 16 to 18 who is a full-time student in a family with parent(s).
• A family consists of a couple (married, same-sex civil partnership or cohabiting) with or without children, or a lone parent and their children. It also includes a married, same-sex civil partnership or cohabiting couple with their grandchildren or a lone grandparent with his or her grandchildren, if there is no parent in the intervening generation in the household. A family will also include step-children when their parent is part of the couple.

Tenure

Tenure provides information about whether a household rents or owns the accommodation that it occupies and, if rented, combines this with information about the type of landlord who owns or manages the accommodation.

Dataset population: Persons in households

Household composition

Household composition classifies households according to the relationships between the household members. Households consisting of one family and no other usual residents are classified according to the type of family (married, same-sex civil partnership or cohabiting couple family, or lone parent family) and the number of dependent children. Other households are classified by the number of people, the number of dependent children, or whether the household consists only of students or only of people aged 65 and over.

In Northern Ireland only:

• A dependent child is a person in a household aged 0 to 15 (whether or not in a family) or a person aged 16 to 18 who is a full-time student in a family with parent(s).
• A family consists of a couple (married, same-sex civil partnership or cohabiting) with or without children, or a lone parent and their children. It also includes a married, same-sex civil partnership or cohabiting couple with their grandchildren or a lone grandparent with his or her grandchildren, if there is no parent in the intervening generation in the household. A family will also include step-children when their parent is part of the couple.

Presents estimates of the number of stepfamilies and children in stepfamilies. This includes trends over time, differences between married and cohabiting couple stepfamilies, geographic patterns and information about family size. Source agency: Office for National Statistics Designation: National Statistics Language: English Alternative title: Stepfamilies

Step-families and blended families, dependent children living in step-families, and households where an additional child stays for more than 30 days a year.

Dataset population: Persons in households

Age

Age is derived from the date of birth question and is a person's age at their last birthday, at 27 March 2011. Dates of birth that imply an age over 115 are treated as invalid and the person's age is imputed. Infants less than one year old are classified as 0 years of age.

Household composition

Household composition classifies households according to the relationships between the household members. Households consisting of one family and no other usual residents are classified according to the type of family (married, same-sex civil partnership or cohabiting couple family, or lone parent family) and the number of dependent children. Other households are classified by the number of people, the number of dependent children, or whether the household consists only of students or only of people aged 65 and over.

In Northern Ireland only:

• A dependent child is a person in a household aged 0 to 15 (whether or not in a family) or a person aged 16 to 18 who is a full-time student in a family with parent(s).
• A family consists of a couple (married, same-sex civil partnership or cohabiting) with or without children, or a lone parent and their children. It also includes a married, same-sex civil partnership or cohabiting couple with their grandchildren or a lone grandparent with his or her grandchildren, if there is no parent in the intervening generation in the household. A family will also include step-children when their parent is part of the couple.

Sex

The classification of a person as either male or female.

Dataset population: Families in households/Dependent children in households

Dependent children in family

A dependent child is any person aged 0 to 15 in a household (whether or not in a family) or a person aged 16 to 18 who's in full-time education and living in a family with his or her parent(s) or grandparent(s). It does not include any people aged 16 to 18 who have a spouse, partner or child living in the household.

A family is defined as a group of people who are a:

• Married, same-sex civil partnership, or cohabiting couple, with or without child(ren)
• Lone parent with child(ren)
• Married, same-sex civil partnership, or cohabiting couple with grandchild(ren) but with no children present from the intervening generation
• Single grandparent with grandchild(ren) but no children present from the intervening generation.

Children in couple families need not belong to both members of the couple. For single or couple grandparents with grandchildren present, the children of the grandparent(s) may also be present if they are not the parents or grandparents of the youngest generation present.

Dataset population: Households

Ethnic group of HRP

Ethnic group classifies people according to their own perceived ethnic group and cultural background.

The concept of a Household Reference Person (HRP) was introduced in the 2001 Census (in common with other government surveys in 2001/2) to replace the traditional concept of the 'head of the household'. HRPs provide an individual person within a household to act as a reference point for producing further derived statistics and for characterising a whole household according to characteristics of the chosen reference person.

Household composition

Household composition classifies households according to the relationships between the household members. Households consisting of one family and no other usual residents are classified according to the type of family (married, same-sex civil partnership or cohabiting couple family, or lone parent family) and the number of dependent children. Other households are classified by the number of people, the number of dependent children, or whether the household consists only of students or only of people aged 65 and over.

This dataset provides Census 2021 estimates that classify usual residents aged 16 years and over in households in England and Wales, by sexual orientation and family composition. The estimates are as at Census Day, 21 March 2021.

Some sub-populations have age and geographic profiles that may affect the relationships with other variables such as education, employment, health and housing. Take care when using this variable with others. We will publish more detailed commentary and guidance later this year. Read more about this quality notice.

Data about household relationships might not always look consistent with legal partnership status. This is because of complexity of living arrangements and the way people interpreted these questions. Take care when using these two variables together. Read more about this quality notice.

Area type

Census 2021 statistics are published for a number of different geographies. These can be large, for example the whole of England, or small, for example an output area (OA), the lowest level of geography for which statistics are produced.

For higher levels of geography, more detailed statistics can be produced. When a lower level of geography is used, such as output areas (which have a minimum of 100 persons), the statistics produced have less detail. This is to protect the confidentiality of people and ensure that individuals or their characteristics cannot be identified.

Coverage

Census 2021 statistics are published for the whole of England and Wales. Data are also available in these geographic types:

• country - for example, Wales
• region - for example, London
• local authority - for example, Cornwall
• health area – for example, Clinical Commissioning Group
• statistical area - for example, MSOA or LSOA

Sexual orientation

Classifies people according to the responses to the sexual orientation question. This question was voluntary and was only asked of people aged 16 years and over.

Household composition

Households according to the relationships between members.

One-family households are classified by:

• the number of dependent children
• family type (married, civil partnership or cohabiting couple family, or lone parent family)

Other households are classified by:

• the number of people
• the number of dependent children
• whether the household consists only of students or only of people aged 66 and over

Dataset population: Households

Household type

Household type classifies households in an alternative way to the household composition classification that is used in most standard census results.

A household is classified by the type of family present, but households with more than one family are categorised in the priority order:

• Married couple family
• Same-sex civil partnership couple family
• Cohabiting couple family
• Lone parent family

Within a family type, a family with dependent children takes priority.

This means that in tables that use this classification the alternative definitions of married couple household, same-sex civil partnership couple household, cohabiting couple household and lone parent household are applicable.

Dataset population: Lone-parent households with dependent children where the lone parent is aged 16 to 74

Lone-parent households with dependent children where the lone parent is aged 16 to 74

In most tables, the term 'lone-parent household' is used to describe a household that comprises a lone parent family and no other person. In the alternative household type variable, a lone-parent household is defined as a household that contains at least one lone-parent family but does not contain any married, same-sex civil partnership or cohabiting couples.

A count of the dependent children living in a household. A dependent child is a person aged 0 to 15 in a household (whether or not in a family) or aged 16 to 18 in full-time education and living in a family with his or her parent(s) or grandparent(s). It does not include any children who have a spouse, partner or child living in the household.

Sex

The classification of a person as either male or female.

Dataset population: Households

Lone-parent households with dependent children where the lone parent is aged 16 to 74

In most tables, the term 'lone-parent household' is used to describe a household that comprises a lone parent family and no other person. In the alternative household type variable, a lone-parent household is defined as a household that contains at least one lone-parent family but does not contain any married, same-sex civil partnership or cohabiting couples.

A count of the dependent children living in a household. A dependent child is a person aged 0 to 15 in a household (whether or not in a family) or aged 16 to 18 in full-time education and living in a family with his or her parent(s) or grandparent(s). It does not include any children who have a spouse, partner or child living in the household.

The aim of the Centre for Population Change (CPC) General Household Survey (GHS) Database project was twofold. The first objective was to create a new data resource, assembling in a single data file, in harmonised form, a time series of repeated cross-sectional GHS survey data on demographic histories relating to fertility, marriage and cohabitation. The second objective was to use this new data resource to analyse the changing dynamics of childbearing and partnership over recent decades, and especially to examine the determinants of the changing timetable of fertility and partnership. The data are a subset, in harmonised form, of all GHS rounds 1979-2009, with those from 1998-2009 being Special Licence editions plus the previous 1972-2004 Time Series GHS Dataset. From 2008, the GHS was known as the General Lifestyle Survey until it closed in 2012. See the UK Data Service General Lifestyle Survey series webpage for the original catalogue records. Further information about construction of the database can be found in the documentation. Information about the overall project can be found on the ESRC Centre for Population Change: Understanding Population Change in the 21st Century award page. The Secure Access version replaces the previous Special Licence version that was held under SN 7666, which is no longer available. Prospective users of the Secure Access data will need to fulfil additional requirements, including completion of face-to-face training and agreement to Secure Access' User Agreement and Breaches Penalties Policy, in order to obtain permission to use that version (see 'Access' section below). Full citation: The Principal Investigators' preferred full citation for the database is as follows: Beaujouan, E., Ni Bhrolcháin, M., Berrington, A., Falkingham, J. Centre for Population Change General Household Survey Database, 1979-2009: Secure Access [computer file]. Office for National Statistics. Social Survey Division, [original data producer(s)]. Colchester, Essex: UK Data Archive [distributor], March 2015. SN: 8099, http://dx.doi.org/10.5255/UKDA-SN-8099-1 Main Topics: Fertility, marriage, cohabitation, household composition, education, age, separation, divorce, marital dissolution, partnership dissolution, contraception, sterilisation. Multi-stage stratified random sample Compilation or synthesis of existing material The original GHS used face-to-face interview and self-completion to gather information.

This dataset provides Census 2021 estimates that classify Household Reference Persons in England and Wales by household composition and by ethnic group. The estimates are as at Census Day, 21 March 2021.

Data about household relationships might not always look consistent with legal partnership status. This is because of complexity of living arrangements and the way people interpreted these questions. Take care when using these two variables together. Read more about this quality notice.

Area type

Census 2021 statistics are published for a number of different geographies. These can be large, for example the whole of England, or small, for example an output area (OA), the lowest level of geography for which statistics are produced.

For higher levels of geography, more detailed statistics can be produced. When a lower level of geography is used, such as output areas (which have a minimum of 100 persons), the statistics produced have less detail. This is to protect the confidentiality of people and ensure that individuals or their characteristics cannot be identified.

Lower tier local authorities

Lower tier local authorities provide a range of local services. There are 309 lower tier local authorities in England made up of 181 non-metropolitan districts, 59 unitary authorities, 36 metropolitan districts and 33 London boroughs (including City of London). In Wales there are 22 local authorities made up of 22 unitary authorities.

Coverage

Census 2021 statistics are published for the whole of England and Wales. However, you can choose to filter areas by:

• country - for example, Wales
• region - for example, London
• local authority - for example, Cornwall
• health area – for example, Clinical Commissioning Group
• statistical area - for example, MSOA or LSOA

Household composition

Households according to the relationships between members.

One-family households are classified by:

• the number of dependent children
• family type (married, civil partnership or cohabiting couple family, or lone parent family)

Other households are classified by:

• the number of people
• the number of dependent children
• whether the household consists only of students or only of people aged 66 and over

Ethnic group

The ethnic group that the person completing the census feels they belong to. This could be based on their culture, family background, identity or physical appearance.

Respondents could choose one out of 19 tick-box response categories, including write-in response options.

This dataset provides Census 2021 estimates that classify households in England and Wales by household composition and by number of people in household with a disability. The estimates are as at Census Day, 21 March 2021.

Data about household relationships might not always look consistent with legal partnership status. This is because of complexity of living arrangements and the way people interpreted these questions. Take care when using these two variables together. Read more about this quality notice.

Area type

Census 2021 statistics are published for a number of different geographies. These can be large, for example the whole of England, or small, for example an output area (OA), the lowest level of geography for which statistics are produced.

For higher levels of geography, more detailed statistics can be produced. When a lower level of geography is used, such as output areas (which have a minimum of 100 persons), the statistics produced have less detail. This is to protect the confidentiality of people and ensure that individuals or their characteristics cannot be identified.

Lower tier local authorities

Lower tier local authorities provide a range of local services. There are 309 lower tier local authorities in England made up of 181 non-metropolitan districts, 59 unitary authorities, 36 metropolitan districts and 33 London boroughs (including City of London). In Wales there are 22 local authorities made up of 22 unitary authorities.

Coverage

Census 2021 statistics are published for the whole of England and Wales. However, you can choose to filter areas by:

• country - for example, Wales
• region - for example, London
• local authority - for example, Cornwall
• health area – for example, Clinical Commissioning Group
• statistical area - for example, MSOA or LSOA

Household composition

Households according to the relationships between members.

One-family households are classified by:

• the number of dependent children
• family type (married, civil partnership or cohabiting couple family, or lone parent family)

Other households are classified by:

• the number of people
• the number of dependent children
• whether the household consists only of students or only of people aged 66 and over

Number of disabled people in household

The number of people in a household who assessed their day-to-day activities as limited by long-term physical or mental health conditions or illnesses and are considered disabled. This definition of a disabled person meets the harmonised standard for measuring disability and is in line with the Equality Act (2010).