The 2021 short form Census questionnaire was sent out to 100% of all households. The 2021 long form Census questionnaire was sent out to 25% of all households. Because one is a census and one is a sample survey, variables that are available in both the 100% data and 25% sample may have different values. For example, the total population of the city taken from the 25% sample could differ from that taken from the 100% data.Source: Statistics Canada, 2021 Census, Custom Tabulation, census profile data for user-specified ward areas. Data received November 2023.Date Created: November 22 2023Update Frequency: Updated with each five-year national Census (next census undertaken in 2026; updated ward data are expected in 2028)Data Steward: Eva WalrondData Steward Email: Eva.walrond@ottawa.caDepartment or Agency: Planning, Real Estate and Economic DevelopmentBranch/Unit: Research & Forecasting

Abstract

The Population and Housing Census 2021 was the 9th census carried out in Tonga since 1956, and the 7th census conducted by the Statistics Department. The Population and Housing Census is a vast and complex undertaking. It is certainly the largest statistical exercise we can contemplate, touching, as it does, every individual and household in the Kingdom. The result of the census has an important role in producing official statistics for Tonga and providing fundamental information for measuring SDG indicators. The 2021 Tonga Population and Housing Census is the third census undertaken following the 5-year interval census. This census will provide up-to-date information regarding the size, distribution, and structure of the Tonga population as well as other social and economic information. Periodic national population and housing census are critical to countries' development policy and planning efforts, in that they represent from most countries' only national snapshot of its social, demographic, and economic conditions, as well as information on recent developments in these areas, that impact on the overall well-being of its population. Population Census provides us with the opportunity to get an accurate, comprehensive and consistent picture of the country's population. The results are invaluable for policy formation, planning and effective targeting of resources. It provides the only source of directly comparable statistics both for small areas and different population groups. It is used as a reference base for many statistical series such as population profiles, infographics and detailed demographic analysis; population estimates, projections and sample survey frame. The census date was midnight, the 30th of November 2021, everyone in Tonga was counted, so that leaves no one behind through the census. The Census of Population and Housing 2021 Volume 1 is the first of two statistical publications of detailed census results. The report comprises detailed statistical tables to facilitate users carrying out more comprehensive studies and further analyses. The Census 2021 was conducted under challenging conditions with the evolving COVID - 19 situation and the significant disruptions of the Volcanic Eruption. The success of the 2021 Tonga Population and Housing Census was made possible with by all participating households who had given their full support and co-operation to the Census. Also the continuous commitment of the all the staff of Tonga Statistics Department.

Geographic coverage

National coverage.

Analysis unit

Household, Individual

Kind of data

Census/enumeration data [cen]

Mode of data collection

Computer Assisted Personal Interview [capi]

Research instrument

The questionnaire is made of 18 sections in total and is in English with the Tongan translation below each question. The questionnaire was designed with Survey Solutions. Below is the list of all 18 sections:

-Demographic characteristics -Civil registration -Migration -Health -Functioning -Education -Literacy -Internet and communication -Alcohol and tobacco -Labour force -Electoral vote -Fertility and mortality -Dwelling characteristics -Household assets -Household income sources -Children deprivation -Household members no longer living in household -Electricity meter and GPS.

The questionnaire is available in the external resources section.

Cleaning operations

Data was edited using the software Stata (version 15).

According to Statistics Canada, Census division (CD) is the general term for provincially legislated areas (counties). Census divisions are intermediate geographic areas between the province/territory level and the municipality (census subdivision).Statistics Canada Census Division boundary file, lcd_000b21f_e (cartographic boundary file)Metadata

Statistics Canada Census Data from 2021. This file geodatabase includes extra data for the language at home total, male, and female populations provided by Statistics Canada joined with the census tracts. The extra tables include the following:Language spoken at home for the total population by ageLanguage spoken at home for the total population where English is their first official language spoken by ageLanguage spoken at home for the total population where French is their first official language spoken by ageLanguage spoken at home for the total population where English and French are their first official languages spoken by ageLanguage spoken at home for the total population where neither English nor French are their first official language spoken by ageThe geodatabase also includes tables of the above topics for the male and female populations.NOTE: Only languages where there were one or more respondents were included. For a full list of languages included in the census, please refer to the List of Languages by Statistics Canada.For more information on definitions of terms used in the tables and other notes, refer to Statistics Canada's Languages Reference Guide and Statistics Canada's 2021 Census.

Statistics Canada data from the 2021 Census of Population, aligned to Edmonton's neighbourhood boundaries. For the neighbourhood boundaries as they were at the time of the census, please see https://data.edmonton.ca/d/5bk4-5txu.

Source: Statistics Canada, 2021 Census of Population, 2023-06-23. Reproduced and distributed on an "as is" basis with the permission of Statistics Canada. Please see https://www.statcan.gc.ca/eng/reference/licence and https://www.statcan.gc.ca/eng/reference/licence-faq for the terms of the Statistics Canada Open Licence.

Note that if you use this data to create another product, an additional acknowledgement is required: "Adapted from Statistics Canada, 2021 Census of Population, . This does not constitute an endorsement by Statistics Canada of this product."

Census 2021 rounded population and household estimates for local authorities in Wales, by sex and five-year age group.

This dataset provides Census 2021 estimates that classify usual residents aged 16 years and over in England and Wales in employment the week before the census by method used to travel to work (2001 specification) and by industry. 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. Due to methodological changes the ‘mainly work at or from home: any workplace type’ category has a population of zero. Please use the transport_to_workplace_12a classification instead. 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

Method used to travel to workplace

A person's place of work and their method of travel to work. This is the 2001 method of producing travel to work variables.

"Work mainly from home" applies to someone who indicated their place of work as their home address and travelled to work by driving a car or van, for example visiting clients.

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.

This dataset provides Census 2021 estimates on the number of dwellings in England and Wales. 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

This release provides insights into self-reported health in England and Wales in 2021, broken down by age and sex. Key findings are presented at country, regional and local authority level. Additional analyses compare general health to the 2011 Census and examines the relationship between deprivation and health at a national decile (England) or quintile (Wales) level can be found here.

In 2021 and 2011, people were asked “How is your health in general?”. The response options were:

• Very good
• Good
• Fair
• Bad
• Very bad

Age specific percentage

Age-specific percentages are estimates of disability prevalence in each age group, and are used to allow comparisons between specified age groups. Further information is in the glossary.

Age-standardised percentage

Age-standardised percentages are estimates of disability prevalence in the population, across all age groups. They allow for comparison between populations over time and across geographies, as they account for differences in the population size and age structure. Further information is in the glossary.

Details on usage of Age-standardised percentage can be found here

Count

The count is the number of usual residents by general health status from very good to very bad, sex, age group and geographic breakdown. To ensure that individuals cannot be identified in the data, counts and populations have been rounded to the nearest 5, and counts under 10 have not been included..

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.

Index of Multiple Deprivation and Welsh Index of Multiple Deprivation

National deciles and quintiles of area deprivation are created through ranking small geographical populations known as Lower layer Super Output Areas (LSOAs), based on their deprivation score from most to least deprived. They are then grouped into 10 (deciles) or 5 (quintiles) divisions based on the subsequent ranking. We have used the 2019 IMD and WIMD because this is the most up-to-date version at the time of publishing.

Population

The population is the number of usual residents of each sex, age group and geographic breakdown. To ensure that individuals cannot be identified in the data, counts and populations have been rounded to the nearest 5, and counts under 10 have not been included.

Usual resident

For Census 2021, a usual resident of the UK is anyone who, on census day, was in the UK and had stayed or intended to stay in the UK for a period of 12 months or more or had a permanent UK address and was outside the UK and intended to be outside the UK for less than 12 months.

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.

This spatial data set contains Statistics Canada 2021 Census information for Major Field of Study Classification of Instructional Programs Cip 2021 by census tract. For more information please visit the Statistics Canada Census Dictionary: https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/index-eng.cfm

It is recommended to use the Field Dictionary in conjunction with this data: Click Here

The Data Tables are a series of cross-tabulations presents a portrait of Canada based on the various census topics. They range in complexity and are available for various levels of geography. The topic of this dataset is Education.

Although the American Community Survey (ACS) produces population, demographic and housing unit estimates, it is the Census Bureau's Population Estimates Program that produces and disseminates the official estimates of the population for the nation, states, counties, cities, and towns and estimates of housing units for states and counties..Supporting documentation on code lists, subject definitions, data accuracy, and statistical testing can be found on the American Community Survey website in the Technical Documentation section.Sample size and data quality measures (including coverage rates, allocation rates, and response rates) can be found on the American Community Survey website in the Methodology section..Source: U.S. Census Bureau, 2021 American Community Survey 1-Year Estimates.Data are based on a sample and are subject to sampling variability. The degree of uncertainty for an estimate arising from sampling variability is represented through the use of a margin of error. The value shown here is the 90 percent margin of error. The margin of error can be interpreted roughly as providing a 90 percent probability that the interval defined by the estimate minus the margin of error and the estimate plus the margin of error (the lower and upper confidence bounds) contains the true value. In addition to sampling variability, the ACS estimates are subject to nonsampling error (for a discussion of nonsampling variability, see ACS Technical Documentation). The effect of nonsampling error is not represented in these tables..The 2021 American Community Survey (ACS) data generally reflect the March 2020 Office of Management and Budget (OMB) delineations of metropolitan and micropolitan statistical areas. In certain instances the names, codes, and boundaries of the principal cities shown in ACS tables may differ from the OMB delineations due to differences in the effective dates of the geographic entities..Estimates of urban and rural populations, housing units, and characteristics reflect boundaries of urban areas defined based on Census 2010 data. As a result, data for urban and rural areas from the ACS do not necessarily reflect the results of ongoing urbanization..Explanation of Symbols:- The estimate could not be computed because there were an insufficient number of sample observations. For a ratio of medians estimate, one or both of the median estimates falls in the lowest interval or highest interval of an open-ended distribution. For a 5-year median estimate, the margin of error associated with a median was larger than the median itself.N The estimate or margin of error cannot be displayed because there were an insufficient number of sample cases in the selected geographic area. (X) The estimate or margin of error is not applicable or not available.median- The median falls in the lowest interval of an open-ended distribution (for example "2,500-")median+ The median falls in the highest interval of an open-ended distribution (for example "250,000+").** The margin of error could not be computed because there were an insufficient number of sample observations.*** The margin of error could not be computed because the median falls in the lowest interval or highest interval of an open-ended distribution.***** A margin of error is not appropriate because the corresponding estimate is controlled to an independent population or housing estimate. Effectively, the corresponding estimate has no sampling error and the margin of error may be treated as zero.

Census Congressional District Shape file 2021

Boundary Shapes for the US Census 'Places' 2021

Table showing all variables, classifications and codes included within the Census 2021 microdata samples. This covers the secure, safeguarded and public samples.

This spatial data set contains Statistics Canada 2021 Census information for Language Used Most Often at Work by census tract. For more information please visit the Statistics Canada Census Dictionary: https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/index-eng.cfm

It is recommended to use the Field Dictionary in conjunction with this data: Click Here

This spatial data set contains Statistics Canada 2021 Census information for Household Characteristics by census tract. For more information please visit the Statistics Canada Census Dictionary: https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/index-eng.cfm

It is recommended to use the Field Dictionary in conjunction with this data: Click Here

Census 2021 variables regarding home language for all Statistics Canada geography levels: CMA, CSD, CT and DA.

This dataset provides Census 2021 estimates that classify usual residents in England and Wales by single year of age. 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

Household size

The number of people in the household.

Visitors staying at an address do not count to that household’s size. ally classified as upper tier local authorities.