These statistics contain the first phase of main statistics results from Census 2021. This phase provides estimates for a number of census topics, including passports held, ethnic group, national identity, language, and religion.

Data are available for Northern Ireland and the 11 Local Government Districts.

The 2021 Northern Ireland Census marked the first time since records began where the Catholic share of the population was larger than the combined Protestant share. In 2021, over 42 percent of the population classified themselves as Catholic or from a Catholic background, in comparison with 37 percent classified as Protestant or from a Protestant background. Additionally, the share of the population with no religion (or those who did not answer) was 19 percent; larger than any individual Protestant denomination. This marks a significant shift in demographic and societal trends over the past century, as Protestants outnumbered Catholics by roughly 2:1 when Northern Ireland was established in the 1920s. Given the Catholic community's historic tendency to be in favor of a united Ireland, many look to the changing religious composition of the population when assessing the potential for Irish reunification. Religion's historical influence A major development in the history of British rule in ireland was the Plantation of Ulster in the 1600s, where much of the land in the north (historically the most rebellious region) was seized from Irish Catholics and given to Protestant settlers from Britain (predominantly Scots). This helped establish Protestant dominance in the north, created a large section of the population loyal to the British crown, and saw a distinct Ulster-Scots identity develop over time. In the 1920s, the republican movement won independence for 26 of Ireland's 32 counties, however, the six counties in Ulster with the largest Protestant populations remained part of the UK, as Northern Ireland. Following partition, structural inequalities between Northern Ireland's Protestant and Catholic communities meant that the Protestant population was generally wealthier, better educated, more politically empowered, and had better access to housing, among other advantages. In the 1960s, a civil rights movement then emerged for equal rights and status for both sides of the population, but this quickly turned violent and escalated into a the three-decade long conflict now known as the Troubles.

The Troubles was largely fought between nationalist/republican paramilitaries (mostly Catholic), unionist/loyalist paramilitaries (mostly Protestant), and British security forces (including the police). This is often described as a religious conflict, however it is more accurately described as an ethnic and political conflict, where the Catholic community generally favored Northern Ireland's reunification with the rest of the island, while the Protestant community wished to remain in the UK. Paramilitaries had a large amount of support from their respective communities in the early years of the Troubles, but this waned as the conflict progressed into the 1980s and 1990s. Demographic and societal trends influenced the religious composition of Northern Ireland's population in these decades, as the Catholic community had higher fertility rates than Protestant communities, while the growing secularism has coincided with a decline in those identifying as Protestant - the dip in those identifying as Catholic in the 1970s and 1980s was due to a protest and boycott of the Census. The Troubles came to an end in 1998, and divisions between both sides of the community have drastically fallen, although they have not disappeared completely.

These statistics contain the first results from Census 2021, and provide estimates of the Northern Ireland population by five-year age band and sex, residence type, and the household count with average household size.

Estimates in this release were published in rounded form.

These statistics contain the first phase of main statistics results from Census 2021. This phase provides estimates for a number of census topics, including passports held, ethnic group, national identity, language, and religion.

Data are available for Northern Ireland and the 11 Local Government Districts.

Top 20 most popular boys' and girls' names.

Source agency: Northern Ireland Statistics and Research Agency

Designation: Official Statistics not designated as National Statistics

Language: English

Alternative title: Popular First Names (Northern Ireland)

This dataset provides population estimates for the local authorities in Wales, the English regions and the UK countries for the period from 1991 onwards by sex and single year of age, together with some aggregated age groups. It should be noted that for mid-2020 there are some definitional changes (particularly affecting the migration components) compared with mid-2019 population estimates data and it is advised users read the Quality and Methodology Information section on the Office for National Statistics website. For Wales, England, and Northern Ireland, the mid-2021 population estimates are the first population estimates to be based on the 2021 censuses for these countries. For Scotland, the census was moved to 2022. The mid-2022 population estimates are the first population estimates to be based on the 2022 Census for Scotland. Internal migration estimates for mid-2023 have been produced using a different method to previous years, following a change to the variables available in the Higher Education Statistics Agency (HESA) data. This material is Crown Copyright and may be re-used (not including logos) free of charge in any format or medium, under the terms of the Open Government Licence.

These statistics contain the first phase of main statistics results from Census 2021. This phase provides estimates for a number of census topics, including passports held, ethnic group, national identity, language, and religion.

Data are available for Northern Ireland and the 11 Local Government Districts.

Top 100 most popular boys' and girls' names.

Source agency: Northern Ireland Statistics and Research Agency

Designation: Official Statistics not designated as National Statistics

Language: English

Alternative title: Babies First Names Bulletin (Northern Ireland)

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 (see SNs 9461 and 9462). 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.

Census 2021 was the first census with a digital-first design, encouraging participants to respond online rather than on a paper questionnaire. Support was given to people who could not respond online, including paper questionnaires, telephone contact centres, field force support, and an extended collection period.

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.

Census flow data involve flows of individuals in the UK between origins and destinations. These flows are either the residential migrations of individuals from one place of usual residence to another, or of commuters making journeys from home to workplace or place of study.

These data are derived from the questions on the census form relating to usual place of residence one year ago, and the place of work for the respondent's main job. Flow data are currently available at a range of different spatial scales ranging from Output Areas to Local Authority Districts.

NIMS aims to investigate mortality patterns in Northern Ireland. The study was launched in 2006, alongside the Northern Ireland Longitudinal Study (NILS) and links the 1991, 2001, 2011 and 2021 Census returns for the whole of the enumerated population of Northern Ireland (approximately 1.87 million individuals) to subsequently registered mortality data from the General Register Office (GRO). The NIMS databases are updated biannually.

From 1821 until 2011, the male and female populations of the 26 counties of the modern-day Republic of Ireland grew at a relatively similar rate, however some fluctuations did occur. During this time, the entire island of Ireland was a part of the United Kingdom of Great Britain and Ireland, after both islands were united by the Acts of Union in 1800. This graph shows the populations of the 26 counties that would later form the Republic of Ireland in 1921, and does not include the six counties that became known as Northern Ireland.

As we can see, both populations follow a relatively similar trend throughout their respective histories. In the first three entries, women outnumber men by 70,000 to 120,000, although these figures do not include military personnel which would narrow this margin. Both populations fall at a similar rate during and after the famine, however the male population does fall slightly faster, possibly due to an increased rate of emigration among males. Another point where both populations differ is in the early twentieth century, where the female population declines in a relatively smooth curve, although the male populations peak in the census data before and after both world wars. From 1956 onwards both populations follow a very similar trend, and grow at the same rate. The difference in population sizes never exceeds 30,000 people, until the final entry in 2011 where the population of men is 2.27 million and the population of women is 2.31 million.

The data are based on the 2011 Census Microdata Teaching File, with the first 18 variables in the OriginalTeachingFileData worksheet exactly the same as those found in the original file. This can be downloaded from: http://www.nisra.gov.uk/Census/2011_results_specialist_products.html. It is also available on the Northern Ireland Neighbourhood Information Service (NINIS) website.The final 8 variables found in the SYLLS_Synthetic_NILS_Spine worksheet, are synthetic data. Those variables corresponding to a 2001 state are based on the transitional probabilities taken from the NILS, accurate to 10 year age groups.

National and subnational mid-year population estimates for the UK and its constituent countries by administrative area, age and sex (including components of population change, median age and population density).

These statistics contain the first phase of main statistics results from Census 2021. This phase provides estimates for a number of census topics, including passports held, ethnic group, national identity, language, and religion.

Data are available for Northern Ireland and the 11 Local Government Districts.

The island of Ireland is split into 32 different counties, and from 1800 until 1921 the whole island was a part of the United Kingdome of Great Britain and Ireland (although Britain had been a controlling presence on the island for considerably longer than this). In 1921 the island was split into two separate states, where the six counties with the highest population of Protestants formed part of the United Kingdom of Great Britain and Northern Ireland, and the other 26 counties became the Independent Republic of Ireland. From 1821 until 1841, the population of these 26 counties was growing steadily, until the Great Famine from 1845 to 1849 swept across the island, particularly devastating the west and south.

The famine was caused by a Europe-wide potato blight that contributed to mass starvation and death throughout the continent, although it's impact on Ireland was much harsher than anywhere else. The potato blight affected Ireland so severely as the majority of potatoes in Ireland were of a single variety which allowed the disease to spread much faster than in other countries. People in the west and south of Ireland were particularly dependent on potatoes, and these areas were affected more heavily than the north and west, where flax and cereals were the staple. As the potato blight spread, the population became increasingly reliant on dairy and grain products, however a lot of these resources were relocated by the British military to combat food shortages in Britain. Due to disproportional dependency on potatoes, and mismanagement by the British government, over one million people died and a further one million emigrated. The Great Famine lasted from just 1845 to 1849, but it's legacy caused almost a century of population decline, and to this day, the population of Ireland has never exceeded it's pre-famine levels.

The population decline continued well into the twentieth century, during which time the Republic of Ireland achieved independence from the British Empire. After centuries of fighting and rebellion against British rule, Irish nationalists finally gained some independence from Britain in 1921, establishing an Irish Republic in the 26 counties. There was a lot of conflict in Ireland in the early 1900s, through the War of Independence and Irish Civil War, however the population of the Republic began growing again from the 1960s onwards as the quality of life improved and the emigration rate declined. The population was at it's lowest from 1926 to 1971, where it remained at just under three million, but in the following fifty years the population has grown by over two million people.

Data quality: Hamilton, City (C) Total non-response (TNR) rate, short-form census questionnaire: 2.5% Total non-response (TNR) rate, long-form census questionnaire: 3.5%Notes: 76: 'Citizenship' refers to the country where the person has citizenship. A person may have more than one citizenship. A person may be stateless that is they may have no citizenship. Citizenship can be by birth or naturalization.For more information on citizenship variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 77: 'Canadian citizens' includes persons who are citizens of Canada only and persons who are citizens of Canada and at least one other country. 78: 'Not Canadian citizens' includes persons who are not citizens of Canada. They may be citizens of one or more other countries. Persons who are stateless are included in this category. 79: 'Immigrant status' refers to whether the person is a non-immigrant an immigrant or a non-permanent resident.'Period of immigration' refers to the period in which the immigrant first obtained landed immigrant or permanent resident status. For more information on immigration variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 80: 'Non-immigrants' includes persons who are Canadian citizens by birth. 81: 'Immigrants' includes persons who are or who have ever been landed immigrants or permanent residents. Such persons have been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this category. In the 2021 Census of Population 'Immigrants' includes immigrants who were admitted to Canada on or prior to May 11 2021. 82: Includes immigrants who were admitted to Canada on or prior to May 11 2021. 83: 'Non-permanent residents' includes persons from another country with a usual place of residence in Canada and who have a work or study permit or who have claimed refugee status (asylum claimants). Family members living with work or study permit holders are also included unless these family members are already Canadian citizens landed immigrants or permanent residents. 84: 'Age at immigration' refers to the age at which an immigrant first obtained landed immigrant or permanent resident status.'Immigrants' includes persons who are or who have ever been landed immigrants or permanent residents. Such persons have been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this category. In the 2021 Census of Population 'Immigrants' includes immigrants who were admitted to Canada on or prior to May 11 2021. For more information on immigration variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 85: 'Immigrant' refers to a person who is or who has ever been a landed immigrant or permanent resident. Such a person has been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this group. In the 2021 Census of Population 'Immigrants' includes immigrants who were admitted to Canada on or prior to May 11 2021.The places of birth selected are the most frequently reported by immigrants at the Canada level. 'Place of birth' refers to the name of the geographic location where the person was born. The geographic location is specified according to geographic boundaries current at the time of data collection not the geographic boundaries at the time of birth. In the 2021 Census of Population the geographic location refers to a country or area of interest if the person was born outside Canada. For more information on the place of birth variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 86: Serbia excludes Kosovo. 87: The official name of United Kingdom is United Kingdom of Great Britain and Northern Ireland. United Kingdom includes Scotland Wales England and Northern Ireland (excludes Isle of Man the Channel Islands and British Overseas Territories). 88: The official name of Iran is Islamic Republic of Iran. 89: The official name of Syria is Syrian Arab Republic. 90: China excludes Hong Kong and Macao. 91: The full name of Hong Kong is the Hong Kong Special Administrative Region of China. 92: The official name of South Korea is Republic of Korea. 93: The category 'Oceania and other' includes places of birth in Oceania and responses not included elsewhere such as 'born at sea.' 94: 'Recent immigrant' refers to an immigrant who first obtained his or her landed immigrant or permanent resident status between January 1 2016 and May 11 2021.'Immigrant' refers to a person who is or who has ever been a landed immigrant or permanent resident. Such a person has been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this group. The places of birth selected are the most frequently reported by recent immigrants at the Canada level. 'Place of birth' refers to the name of the geographic location where the person was born. The geographic location is specified according to geographic boundaries current at the time of data collection not the geographic boundaries at the time of birth. In the 2021 Census of Population the geographic location refers to a country or area of interest if the person was born outside Canada. For more information on the place of birth variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 95: The official name of Venezuela is Bolivarian Republic of Venezuela. 96: Ireland is also referred to as Republic of Ireland. 97: The full name of Sudan is the Republic of the Sudan. 98: The category 'Other places of birth' includes other places of birth in Oceania and responses not included elsewhere such as 'born at sea.' 99: 'Generation status' refers to whether or not the person or the person's parents were born in Canada.For more information on generation status variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 100: 'First generation' includes persons who were born outside Canada. For the most part these are people who are now or once were immigrants to Canada. 101: 'Second generation' includes persons who were born in Canada and had at least one parent born outside Canada. For the most part these are the children of immigrants. 102: 'Third generation or more' includes persons who were born in Canada with all parents born in Canada. 103: 'Admission category' refers to the name of the immigration program or group of programs under which an immigrant has been granted for the first time the right to live in Canada permanently by immigration authorities.'Applicant type' refers to whether an immigrant was identified as the principal applicant the spouse or the dependant on their application for permanent residence. 'Immigrant' refers to a person who is or who has ever been a landed immigrant or permanent resident. Such a person has been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this group. In the 2021 Census of Population data on admission category and applicant type are available for immigrants who were admitted to Canada between January 1 1980 and May 11 2021. For more information on immigration variables including information on their classifications data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 104: 'Economic immigrants' includes immigrants who have been selected for their ability to contribute to Canada's economy through their ability to meet labour market needs to own and manage or to build a business to make a substantial investment to create their own employment or to meet specific provincial or territorial labour market needs. 105: 'Principal applicants' includes immigrants who were identified as the principal applicant on their application for permanent residence. 106: 'Secondary applicants' includes immigrants who were identified as the married spouse the common-law or conjugal partner or the dependant of the principal applicant on their application for permanent residence. 107: 'Immigrants sponsored by family' includes immigrants who were sponsored by a Canadian citizen or permanent resident and were granted permanent resident status on the basis of their

Data quality: Total non-response (TNR) rate, short-form census questionnaire: 2.5% Total non-response (TNR) rate, long-form census questionnaire: 3.5% Notes: 76: 'Citizenship' refers to the country where the person has citizenship. A person may have more than one citizenship. A person may be stateless that is they may have no citizenship. Citizenship can be by birth or naturalization. For more information on citizenship variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 77: 'Canadian citizens' includes persons who are citizens of Canada only and persons who are citizens of Canada and at least one other country.78: 'Not Canadian citizens' includes persons who are not citizens of Canada. They may be citizens of one or more other countries. Persons who are stateless are included in this category.79: 'Immigrant status' refers to whether the person is a non-immigrant an immigrant or a non-permanent resident. 'Period of immigration' refers to the period in which the immigrant first obtained landed immigrant or permanent resident status. For more information on immigration variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 80: 'Non-immigrants' includes persons who are Canadian citizens by birth.81: 'Immigrants' includes persons who are or who have ever been landed immigrants or permanent residents. Such persons have been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this category. In the 2021 Census of Population 'Immigrants' includes immigrants who were admitted to Canada on or prior to May 11 2021.82: Includes immigrants who were admitted to Canada on or prior to May 11 2021.83: 'Non-permanent residents' includes persons from another country with a usual place of residence in Canada and who have a work or study permit or who have claimed refugee status (asylum claimants). Family members living with work or study permit holders are also included unless these family members are already Canadian citizens landed immigrants or permanent residents.84: 'Age at immigration' refers to the age at which an immigrant first obtained landed immigrant or permanent resident status. 'Immigrants' includes persons who are or who have ever been landed immigrants or permanent residents. Such persons have been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this category. In the 2021 Census of Population 'Immigrants' includes immigrants who were admitted to Canada on or prior to May 11 2021. For more information on immigration variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 85: 'Immigrant' refers to a person who is or who has ever been a landed immigrant or permanent resident. Such a person has been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this group. In the 2021 Census of Population 'Immigrants' includes immigrants who were admitted to Canada on or prior to May 11 2021. The places of birth selected are the most frequently reported by immigrants at the Canada level. 'Place of birth' refers to the name of the geographic location where the person was born. The geographic location is specified according to geographic boundaries current at the time of data collection not the geographic boundaries at the time of birth. In the 2021 Census of Population the geographic location refers to a country or area of interest if the person was born outside Canada. For more information on the place of birth variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 86: Serbia excludes Kosovo.87: The official name of United Kingdom is United Kingdom of Great Britain and Northern Ireland. United Kingdom includes Scotland Wales England and Northern Ireland (excludes Isle of Man the Channel Islands and British Overseas Territories).88: The official name of Iran is Islamic Republic of Iran.89: The official name of Syria is Syrian Arab Republic.90: China excludes Hong Kong and Macao.91: The full name of Hong Kong is the Hong Kong Special Administrative Region of China.92: The official name of South Korea is Republic of Korea.93: The category 'Oceania and other' includes places of birth in Oceania and responses not included elsewhere such as 'born at sea.'94: 'Recent immigrant' refers to an immigrant who first obtained his or her landed immigrant or permanent resident status between January 1 2016 and May 11 2021. 'Immigrant' refers to a person who is or who has ever been a landed immigrant or permanent resident. Such a person has been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this group. The places of birth selected are the most frequently reported by recent immigrants at the Canada level. 'Place of birth' refers to the name of the geographic location where the person was born. The geographic location is specified according to geographic boundaries current at the time of data collection not the geographic boundaries at the time of birth. In the 2021 Census of Population the geographic location refers to a country or area of interest if the person was born outside Canada. For more information on the place of birth variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 95: The official name of Venezuela is Bolivarian Republic of Venezuela.96: Ireland is also referred to as Republic of Ireland.97: The full name of Sudan is the Republic of the Sudan.98: The category 'Other places of birth' includes other places of birth in Oceania and responses not included elsewhere such as 'born at sea.'99: 'Generation status' refers to whether or not the person or the person's parents were born in Canada. For more information on generation status variables including information on their classifications the questions from which they are derived data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 100: 'First generation' includes persons who were born outside Canada. For the most part these are people who are now or once were immigrants to Canada.101: 'Second generation' includes persons who were born in Canada and had at least one parent born outside Canada. For the most part these are the children of immigrants.102: 'Third generation or more' includes persons who were born in Canada with all parents born in Canada.103: 'Admission category' refers to the name of the immigration program or group of programs under which an immigrant has been granted for the first time the right to live in Canada permanently by immigration authorities. 'Applicant type' refers to whether an immigrant was identified as the principal applicant the spouse or the dependant on their application for permanent residence. 'Immigrant' refers to a person who is or who has ever been a landed immigrant or permanent resident. Such a person has been granted the right to live in Canada permanently by immigration authorities. Immigrants who have obtained Canadian citizenship by naturalization are included in this group. In the 2021 Census of Population data on admission category and applicant type are available for immigrants who were admitted to Canada between January 1 1980 and May 11 2021. For more information on immigration variables including information on their classifications data quality and their comparability with other sources of data please refer to the Place of Birth Generation Status Citizenship and Immigration Reference Guide Census of Population 2021. 104: 'Economic immigrants' includes immigrants who have been selected for their ability to contribute to Canada's economy through their ability to meet labour market needs to own and manage or to build a business to make a substantial investment to create their own employment or to meet specific provincial or territorial labour market needs.105: 'Principal applicants' includes immigrants who were identified as the principal applicant on their application for permanent residence.106: 'Secondary applicants' includes immigrants who were identified as the married spouse the common-law or conjugal partner or the dependant of the principal applicant on their application for permanent residence.107: 'Immigrants sponsored by family' includes immigrants who were sponsored by a Canadian citizen or permanent resident and were granted permanent resident status on the basis of their relationship either as the spouse partner