This dataset provides information on how often people aged 3 or older say that they speak Welsh, by local authority. These percentages sum to the total percentage who report being able to speak Welsh.

This dataset provides information on how often people aged 3 or older say that they speak Welsh, by Welsh age and sex. These percentages sum to the total percentage who report being able to speak Welsh.

This dataset provides Census 2021 estimates that classify usual residents in Wales aged 3 years and over in Wales by ability to speak Welsh, by national identity, and by age. The estimates are as at Census Day, 21 March 2021.

The increase since the 2011 Census in people identifying as “British” and fall in people identifying as “English” may partly reflect true changes in self-perception. It is also likely to reflect that “British” replaced “English” as the first response option listed on the questionnaire in England. Read more about this quality notice.

Estimates for single year of age between ages 90 and 100+ are less reliable than other ages. Estimation and adjustment at these ages was based on the age range 90+ rather than five-year age bands. 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

Welsh speaking ability

This classifies a person as being able to "Speak Welsh". They may have also ticked one or more of the following:

• understand spoken Welsh
• read Welsh
• write Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

National identity

Someone’s national identity is a self-determined assessment of their own identity, it could be the country or countries where they feel they belong or think of as home. It is not dependent on ethnic group or citizenship.

Respondents could select more than one national identity.

Age (B)

A person’s age on Census Day, 21 March 2021 in England and Wales. Infants aged under 1 year are classified as 0 years of age. Age is categorised as follows:

• Aged 15 years and under
• Aged 16 to 49 years
• Aged 50 years and over

This dataset provides Census 2021 estimates that classify usual residents aged 16 years and over in Wales by ability to speak Welsh and by whether and when they were last employed. The estimates are as at Census Day, 21 March 2021.

As Census 2021 was during a unique period of rapid change, take care when using this data for planning purposes. 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

Welsh speaking ability

This classifies a person as being able to "Speak Welsh". They may have also ticked one or more of the following:

• understand spoken Welsh
• read Welsh
• write Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

Employment history

Classifies people who were not in employment on Census Day into:

• Not in employment: Worked in the last 12 months
• Not in employment: Not worked in the last 12 months
• Not in employment: Never worked

This dataset provides Census 2021 estimates that classify usual residents aged 3 years and over in households in Wales who can speak Welsh, by Welsh language skills and by household size. The estimates are as at Census Day, 21 March 2021.

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

Welsh-speakers in household

Number of people (aged 3 years and over) who can speak Welsh in households in Wales.

Household size

The number of people in the household.

Visitors staying at an address do not count to that household’s size.

The census is undertaken by the Office for National Statistics every 10 years and gives us a picture of all the people and households in England and Wales. The most recent census took place in March of 2021.The census asks every household questions about the people who live there and the type of home they live in. In doing so, it helps to build a detailed snapshot of society. Information from the census helps the government and local authorities to plan and fund local services, such as education, doctors' surgeries and roads.Key census statistics for Leicester are published on the open data platform to make information accessible to local services, voluntary and community groups, and residents. There is also a dashboard published showcasing various datasets from the census allowing users to view data for all MSOAs and compare this with Leicester overall statistics.Further information about the census and full datasets can be found on the ONS website - https://www.ons.gov.uk/census/aboutcensus/censusproductsProficiency in EnglishThis dataset provides Census 2021 estimates that classify usual residents in England and Wales by their proficiency in English. The estimates are as at Census Day, 21 March 2021.Definition: How well people whose main language is not English (English or Welsh in Wales) speak English.This dataset provides details for the MSOAs of Leicester city.

This dataset provides Census 2021 estimates that classify usual residents aged 3 years and over in Wales by Welsh language skills, by sex, and by age. The estimates are as at Census Day, 21 March 2021.

Estimates for single year of age between ages 90 and 100+ are less reliable than other ages. Estimation and adjustment at these ages was based on the age range 90+ rather than five-year age bands. 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

Welsh language skills

Whether a person has Welsh language skills. If they do, can they do any of the following:

• understand spoken Welsh
• speak Welsh
• read Welsh
• write Welsh
• no skills in Welsh

The census questionnaire only asked this question to people in Wales.

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

Sex

This is the sex recorded by the person completing the census. The options were “Female” and “Male”.

Age

A person’s age on Census Day, 21 March 2021 in England and Wales. Infants aged under 1 year are classified as 0 years of age.

This dataset provides Census 2021 estimates that classify usual residents in Wales by their ability to write Welsh. The estimates are as at Census Day, 21 March 2021.

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

Welsh writing ability (3 categories)

This classifies a person as being able to “Write Welsh". They may have also ticked one or more of the following:

• understand spoken Welsh
• speak Welsh
• read Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

The census is undertaken by the Office for National Statistics every 10 years and gives us a picture of all the people and households in England and Wales. The most recent census took place in March of 2021.The census asks every household questions about the people who live there and the type of home they live in. In doing so, it helps to build a detailed snapshot of society. Information from the census helps the government and local authorities to plan and fund local services, such as education, doctors' surgeries and roads.Key census statistics for Leicester are published on the open data platform to make information accessible to local services, voluntary and community groups, and residents. There is also a dashboard published showcasing various datasets from the census allowing users to view data for all wards and compare this with Leicester overall statistics.Further information about the census and full datasets can be found on the ONS website - https://www.ons.gov.uk/census/aboutcensus/censusproductsProficiency in EnglishThis dataset provides Census 2021 estimates that classify usual residents in England and Wales by their proficiency in English. The estimates are as at Census Day, 21 March 2021.Definition: How well people whose main language is not English (English or Welsh in Wales) speak English.This dataset provides details for the electoral wards of Leicester city.

Abstract copyright UK Data Service and data collection copyright owner.

The Welsh Government's National Survey for Wales covers a random sample of 12,000 adults a year (aged 16+) living in private households across Wales. The survey provides representative, reliable and up-to-date information about the people of Wales down to local authority level.

The survey began in 2012. In 2015 it was reviewed the decision was taken to amalgamate five large scale social surveys that were carried out in Wales into one. From 2016-17 onwards the National Survey for Wales was expanded to include topics previously covered by the Welsh Health Survey, Active Adults Survey, Arts in Wales Survey, and Welsh Outdoor Recreation Survey.

The aim of the survey is to provide representative, reliable and up-to-date information about the people of Wales down to local authority level. Prior to March 2020, the survey was carried out face-to-face in respondents’ homes. Since May 2020 onwards, the survey has been carried out by telephone. Topics were updated monthly and results published monthly for May to September 2020; from October, topic updates and publications switched to quarterly.

The survey continued in telephone mode for 2021-22 onwards, with an online element added from July 2021.

Further information is available on the Welsh Government National Survey for Wales webpages.

The National Survey for Wales, 2021/22 and 2022/23: Combined Data study combines two full years of NSW data. Many of the same questions were asked in both years of the survey and this combined dataset only contain these common variables, with an accompanying variable catalogue (see documentation). The two-year combined dataset allows the production of more detailed breakdowns at local authority or health board level and makes it easier to pick up differences between areas. It also allows more in-depth analysis for some smaller subgroups, which would not have been reliable with only one year's worth of survey data.


Main Topics:

The common topics across 2021/22 and 2022/23 were:

• Well-being
• Internet
• Local Authority Services
• Play
• Screen Time for Child
• Health
• GP Services
• Hospitals
• Diet
• Alcohol
• Smoking
• Physical Activity
• Active Travel
• Education
• Tax
• Material Deprivation
• Sport

This dataset provides information for people aged 3 or older who say they can read, write and understand spoken Welsh, by Welsh local authority

Abstract copyright UK Data Service and data collection copyright owner.

The aims of the project were as follows :
to collect and process information from the data relating to the Welsh language in the 1891 Census Enumerators' Returns in 20 selected communities in Wales;
to create computer-readable data files on the language ability of around 90,000 individuals, i.e. five per cent of the population;
to undertake a quantitative analysis of the socio-economic structure of Welsh/English language ability on the basis of the above data;
to develop a classification of occupations in order to explore links between economic activity and the process of language change;
to write a volume on the basis of the above in order to deepen our socio-cultural understanding of a society in which nearly a million people spoke Welsh and over half a million were monoglot Welsh.
Main Topics:

The dataset contains 35 files, each of which consists of a 100 per cent sample of the enumeration district in twenty communities selected from the 178 sub-registration districts in Wales, i.e. 90,000 individuals or five per cent of the total population of wales in 1891. Two specific datafiles were created for each district.
Variables in the first file identify : the individual person, enumeration district, schedule number, first name, surname, relation to head of household, marital status, gender, age, occupation, employment status, occupation code, country/county of birth, birthplace and language spoken.
Variables in the second file identify : the enumeration district, schedule number, whether a Welsh-language schedule was used, number of persons in the household, number of rooms and address.

Abstract copyright UK Data Service and data collection copyright owner.

Background:
The Millennium Cohort Study (MCS) is a large-scale, multi-purpose longitudinal dataset providing information about babies born at the beginning of the 21st century, their progress through life, and the families who are bringing them up, for the four countries of the United Kingdom. The original objectives of the first MCS survey, as laid down in the proposal to the Economic and Social Research Council (ESRC) in March 2000, were:

• to chart the initial conditions of social, economic and health advantages and disadvantages facing children born at the start of the 21st century, capturing information that the research community of the future will require
• to provide a basis for comparing patterns of development with the preceding cohorts (the National Child Development Study, held at the UK Data Archive under GN 33004, and the 1970 Birth Cohort Study, held under GN 33229)
• to collect information on previously neglected topics, such as fathers' involvement in children's care and development
• to focus on parents as the most immediate elements of the children's 'background', charting their experience as mothers and fathers of newborn babies in the year 2000, recording how they (and any other children in the family) adapted to the newcomer, and what their aspirations for her/his future may be
• to emphasise intergenerational links including those back to the parents' own childhood
• to investigate the wider social ecology of the family, including social networks, civic engagement and community facilities and services, splicing in geo-coded data when available

Additional objectives subsequently included for MCS were:

• to provide control cases for the national evaluation of Sure Start (a government programme intended to alleviate child poverty and social exclusion)
• to provide samples of adequate size to analyse and compare the smaller countries of the United Kingdom, and include disadvantaged areas of England

Further information about the MCS can be found on the Centre for Longitudinal Studies web pages.

The content of MCS studies, including questions, topics and variables can be explored via the CLOSER Discovery website.

The first sweep (MCS1) interviewed both mothers and (where resident) fathers (or father-figures) of infants included in the sample when the babies were nine months old, and the second sweep (MCS2) was carried out with the same respondents when the children were three years of age. The third sweep (MCS3) was conducted in 2006, when the children were aged five years old, the fourth sweep (MCS4) in 2008, when they were seven years old, the fifth sweep (MCS5) in 2012-2013, when they were eleven years old, the sixth sweep (MCS6) in 2015, when they were fourteen years old, and the seventh sweep (MCS7) in 2018, when they were seventeen years old.
End User Licence versions of MCS studies:
The End User Licence (EUL) versions of MCS1, MCS2, MCS3, MCS4, MCS5, MCS6 and MCS7 are held under UK Data Archive SNs 4683, 5350, 5795, 6411, 7464, 8156 and 8682 respectively. The longitudinal family file is held under SN 8172.

Sub-sample studies:
Some studies based on sub-samples of MCS have also been conducted, including a study of MCS respondent mothers who had received assisted fertility treatment, conducted in 2003 (see EUL SN 5559). Also, birth registration and maternity hospital episodes for the MCS respondents are held as a separate dataset (see EUL SN 5614).

Release of Sweeps 1 to 4 to Long Format (Summer 2020)To support longitudinal research and make it easier to compare data from different time points, all data from across all sweeps is now in a consistent format. The update affects the data from sweeps 1 to 4 (from 9 months to 7 years), which are updated from the old/wide to a new/long format to match the format of data of sweeps 5 and 6 (age 11 and 14 sweeps). The old/wide formatted datasets contained one row per family with multiple variables for different respondents. The new/long formatted datasets contain one row per respondent (per parent or per cohort member) for each MCS family. Additional updates have been made to all sweeps to harmonise variable labels and enhance anonymisation.

How to access genetic and/or bio-medical sample data from a range of longitudinal surveys:
For information on how to access biomedical data from MCS that are not held at the UKDS, see the CLS Genetic data and biological samples webpage.

Secure Access datasets:
Secure Access versions of the MCS have more restrictive access conditions than versions available under the standard End User Licence or Special Licence (see 'Access data' tab above).

Secure Access versions of the MCS...

Abstract copyright UK Data Service and data collection copyright owner.

The 2021 UK Census was the 23rd official census of the United Kingdom. The UK Census is generally conducted once every 10 years, and the 2021 censuses of England, Wales, and Northern Ireland took place on 21 March 2021. In Scotland, the decision was made to move the census to March 2022 because of the impact of the coronavirus pandemic. The censuses were administered by the Office for National Statistics (ONS), the Northern Ireland Statistics and Research Agency (NISRA) and National Records of Scotland (NRS), respectively. In England and Wales, Census 2021 was the first census with a digital-first design, encouraging participants to respond online rather than on a paper questionnaire.

Topics covered in the 2021 UK Census included:

• demography and migration
• ethnic group, national identity, language and religion
• labour market and travel to work
• housing
• education
• health, disability, and unpaid care
• Welsh and other languages
• UK armed forces veterans
• sexual orientation and gender identity.

The 2021 Census: Safeguarded Individual Microdata Sample at Region Level dataset consists of a random sample of 5% of person records from the 2021 Census. It includes records for 3,021,455 persons. These data cover England and Wales only. The lowest level of geography is country (Wales) and regions within England. The dataset contains 89 variables and a medium level of detail.

Census Microdata

Microdata are small samples of individual records from a single census from which identifying information have been removed. They contain a range of individual and household characteristics and can be used to carry out analysis not possible from standard census outputs, such as:

• creating tables using bespoke variable combinations
• investigating specific combinations of variables or categories in a high level of detail
• conducting non-tabular statistical analyses on record-level data.

The microdata samples are designed to protect the confidentiality of individuals and households. This is done by applying access controls and removing information that might directly identify a person, such as names, addresses and date of birth. Record swapping is applied to the census data used to create the microdata samples. This is a statistical disclosure control (SDC) method, which makes very small changes to the data to prevent the identification of individuals. The microdata samples use further SDC methods, such as collapsing variables and restricting detail. The samples also include records that have been edited to prevent inconsistent data and contain imputed persons, households, and data values. To protect confidentiality, imputation flags are not included in any 2021 Census microdata sample.

Main Topics:

The 2021 Census: Safeguarded Individual Microdata Sample at Region Level data cover: communal establishments, demography, education, ethnicity, identity, language, religion, health, disability, unpaid care, housing, internal migration, international migration, labour market, students, travel to work, Welsh language; and UK armed forces veterans.

This dataset provides Census 2021 estimates that classify usual residents aged 16 years and over in employment the week before the census in Wales by ability to speak Welsh by industry. The estimates are as at Census Day, 21 March 2021. 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

Welsh speaking ability

This classifies a person as being able to "Speak Welsh". They may have also ticked one or more of the following:

• understand spoken Welsh
• read Welsh
• write Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

Industry (current)

Classifies people aged 16 years and over who were in employment between 15 March and 21 March 2021 by the Standard Industrial Classification (SIC) code that represents their current industry or business.

The SIC code is assigned based on the information provided about a firm or organisation’s main activity.

Every ten years since 1801 the nation has set aside one day for the census - a count of all people and households. It is the most complete source of information about the population that we have. The latest census was held on Sunday 27 March 2011.

Every effort is made to include everyone, and that is why the census is so important. It is the only survey which provides a detailed picture of the entire population, and is unique because it covers everyone at the same time and asks the same core questions everywhere. This makes it easy to compare different parts of the country.

The information the census provides allows central and local government, health authorities and many other organisations to target their resources more effectively and to plan housing, education, health and transport services for years to come.

In England and Wales, the census is planned and carried out by the Office for National Statistics. Elsewhere in the UK, responsibility lies with the National Records of Scotland and the Northern Ireland Statistics and Research Agency.

All 2011 Census data for ‘Welsh’ records are defined as those: - Currently resident in Wales - With a second address in Wales - With a previous Years Address in Wales - With a term-time address in Wales - Who work in Wales (but live in England) - In Armed Forces Establishments in Wales - Who are visitors in Wales - Who are Welsh language speakers (including those who live and work outside of Wales).

The ONS have three processes for checking and resolving duplicate responses so that the main census data should simply be one record for each person:

1. The ONS resolve duplicates coming in for the same postcode using a process called Resolve Multiple Responses (RMR). For instance, if two people both fill in a form for their whole household, or someone from a household also submits an individual response unknown to the main submission. They have rules for checking they are duplicates, and rules for which to keep.

2. The ONS also do an over coverage check on a sample basis for duplicates across the rest of the country, and then factor the findings into their coverage estimation calculations. This sampling focuses on the types of population which are more likely to be duplicated (people who have indicated they have a second residence on the census, students aged 18-25, armed forces personnel, children, adults enumerated at a communal establishment, etc.) but also samples from the remaining population.

3. The ONS ask parents to fill in basic demographic information for any children who are away studying, and when they get to the question on their term-time address, if they answer that the term-time address is elsewhere, we then use that to filter those out-of-term students out of the main database. Then when that student does respond actually at their term-time address, they only include them there.

Variables RELAT06, RELAT11, RELAT16, RELAT21, RELAT26 are not available in the data

This dataset provides Census 2021 estimates that classify usual residents in Wales by their ability to speak Welsh by age. The estimates are as at Census Day, 21 March 2021.

Estimates for single year of age between ages 90 and 100+ are less reliable than other ages. Estimation and adjustment at these ages was based on the age range 90+ rather than five-year age bands.

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

Welsh speaking ability (3 categories)

This classifies a person as being able to "Speak Welsh". They may have also ticked one or more of the following:

• understand spoken Welsh

• read Welsh

• write Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

Age (86 categories)

A person’s age on Census Day, 21 March 2021 in England and Wales. Infants aged under 1 year are classified as 0 years of age.

This dataset enables household analyses to be carried out at a Local Authority level, including details of people in workless households, children in workless households, lone parents and housing tenure.

Source agency: Welsh Government

Designation: National Statistics

Language: English

Alternative title: Labour Market Statistics for Households in Wales

This dataset provides Census 2021 estimates that classify usual residents aged 3 years and over in Wales by general health, by ability to speak Welsh, and by age. The estimates are as at Census Day, 21 March 2021.

Estimates for single year of age between ages 90 and 100+ are less reliable than other ages. Estimation and adjustment at these ages was based on the age range 90+ rather than five-year age bands. 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

General health

A person's assessment of the general state of their health from very good to very bad. This assessment is not based on a person's health over any specified period of time.

Welsh speaking ability

This classifies a person as being able to "Speak Welsh". They may have also ticked one or more of the following:

• understand spoken Welsh
• read Welsh
• write Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

Age (B)

A person’s age on Census Day, 21 March 2021 in England and Wales. Infants aged under 1 year are classified as 0 years of age. Age is categorised as followed:

• Aged 15 years and under
• Aged 16 to 49 years
• Aged 50 years and over

Dataset population: Persons aged 3 and over

Ability to speak Welsh

A person is classified as being able to read Welsh if they tick 'Read Welsh', though they may also tick one or more of the following:

• Understand spoken Welsh
• Speak Welsh
• Write Welsh

In results that classify people by Welsh language skills, a person may appear in more than one category depending on which combination of skills they have.

Applicable to Wales only.

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.

National identity

A person's national identity is a self-determined assessment of their own identity with respect to the country or countries with which they feel an affiliation. This assessment of identity is not dependent on legal nationality or ethnic group.

The national identity question included six tick box responses:

• English
• Welsh
• Scottish
• Northern Irish
• British
• Other

Where a person ticked 'Other' they were asked to write in the name of the country. People were asked to tick all options that they felt applied to them. This means that in results relating to national identity people may be classified with a single national identity or a combination of identities.