In 2024, there were 130,736 people aged between 35 and 39 in Northern Ireland, which was the most of any age group in this year.

Principal projection for Northern Ireland - population by five-year age groups and sex.

This statistic shows the predicted median age of the population of Northern Ireland from 2017 to 2041, by gender. The figures show year on year increase over this twenty eight year period for both men and women, to **** years of age for women and **** years for men.

Young age structure variant projection for Northern Ireland including population by broad age group, components of change and summary statistics.

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).

This dataset provides Census 2021 estimates that classify usual residents in Northern Ireland by ethnic group, and by broad age bands. The estimates are as at census day, 21 March 2021.

The census collected information on the usually resident population of Northern Ireland on census day (21 March 2021). Initial contact letters or questionnaire packs were delivered to every household and communal establishment, and residents were asked to complete online or return the questionnaire with information as correct on census day. Special arrangements were made to enumerate special groups such as students, members of the Travellers Community, HM Forces personnel etc. The Census Coverage Survey (an independent doorstep survey) followed between 12 May and 29 June 2021 and was used to adjust the census counts for under-enumeration.

The ethnic groups reported are those for which there was a tick-box on the census questionnaire, plus any ethnic group with more counts than the smallest tick-box.

'Age' is age at last birthday.

Quality assurance report can be found here

This dataset provides Census 2021 estimates that classify usual residents in Northern Ireland by single year of age, and by sex. The estimates are as at census day, 21 March 2021.

The census collected information on the usually resident population of Northern Ireland on census day (21 March 2021). Initial contact letters or questionnaire packs were delivered to every household and communal establishment, and residents were asked to complete online or return the questionnaire with information as correct on census day. Special arrangements were made to enumerate special groups such as students, members of the Travellers Community, HM Forces personnel etc. The Census Coverage Survey (an independent doorstep survey) followed between 12 May and 29 June 2021 and was used to adjust the census counts for under-enumeration.

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.

Counts of the Northern Ireland population as at 30th June by sex and single year of age. Source agency: Northern Ireland Statistics and Research Agency Designation: National Statistics Language: English Alternative title: Mid-Year Population Estimates for Northern Ireland

Population Projections for Northern Ireland by sex and single year of age.

Source agency: Northern Ireland Statistics and Research Agency

Designation: National Statistics

Language: English

Alternative title: Northern Ireland Population Projections

This dataset provides Census 2021 estimates that classify usual residents in Northern Ireland by their national identity (person based), and by broad age bands. The estimates are as at census day, 21 March 2021. This dataset is mutually exclusive; respondents are included in one group only (for example, this classification includes a 'British only' group, 'Irish only' group, and 'British and Irish only' group).

The census collected information on the usually resident population of Northern Ireland on census day (21 March 2021). Initial contact letters or questionnaire packs were delivered to every household and communal establishment, and residents were asked to complete online or return the questionnaire with information as correct on census day. Special arrangements were made to enumerate special groups such as students, members of the Travellers Community, HM Forces personnel etc. The Census Coverage Survey (an independent doorstep survey) followed between 12 May and 29 June 2021 and was used to adjust the census counts for under-enumeration.

'Age' is age at last birthday.

Quality assurance report can be found here

National population projections by age and gender are produced every two years for the UK and each of the UK constituent countries by the Office for National Statistics (ONS) on behalf of the National Statistician and the Registrars General of Scotland and Northern Ireland. Principal Projections are produced based on long-term assumptions about future fertility, mortality and migration levels, with variant projections being produced from various alternative assumptions – usually in the form of high/low variants and their combinations. National population projections provide an estimate of the future size and age structure of the population of Northern Ireland. Population projections are widely used in policy development in areas such as housing, healthcare and education.

Population estimates relate to the population as of 30th June each year, and therefore are often referred to as mid-year estimates. Estimates of the population aged 85 and over in Northern Ireland provide a further age breakdown of those aged 90 and over, by single year of age up to 104 years, and collectively for those aged 105 and over. These statistics contribute to the production of population projections and life expectancy statistics for Northern Ireland, all of which are of policy interest because of the implications for pensions and the delivery of front line services for the older population such as housing, transport and health care.

This dataset provides Census 2021 estimates about the religion or religion brought up in of the usual resident population of Northern Ireland, by broad age bands. The estimates are as at census day, 21 March 2021.

The census collected information on the usually resident population of Northern Ireland on census day (21 March 2021). Initial contact letters or questionnaire packs were delivered to every household and communal establishment, and residents were asked to complete online or return the questionnaire with information as correct on census day. Special arrangements were made to enumerate special groups such as students, members of the Travellers Community, HM Forces personnel etc. The Census Coverage Survey (an independent doorstep survey) followed between 12 May and 29 June 2021 and was used to adjust the census counts for under-enumeration.

'Religion' indicates religion, religious denomination or body.

'Age' is age at last birthday.

'Catholic' includes those who gave their religion or their religion brought up in as Catholic or Roman Catholic.

Quality assurance report can be found here

Estimates of the usual resident population for the UK as at 30 June of the reference year.

Provided by administrative area, single year of age and sex.

Source agency: Office for National Statistics

Designation: National Statistics

Language: English

Alternative title: Population Estimates for UK, England and Wales, Scotland and Northern Ireland

Population estimates relate to the population as of 30th June each year, and therefore are often referred to as mid-year estimates. Population estimates for the 80 District Electoral Areas in Northern Ireland are presented by sex and broad age bands (0-15, 16-39, 40-64 and 65+) for mid-2011 to mid-2020.

Detailed estimates of the numbers of people aged 85 and over, by sex and age.

Source agency: Northern Ireland Statistics and Research Agency

Designation: National Statistics

Language: English

Alternative title: Population Estimates of Persons Aged 85 and Over (Northern Ireland)