Compare

People and census in Northern Ireland

Nation

One of the four nations of the United Kingdom. 1,928,446 people (mid-2025 estimate) in 14,330 square kilometres.

16 layers about people and census for Northern Ireland, each at the level its publisher released it, with its own date and source.

Open in map

Population by output area

Census 2021, England and Wales

Under 129379 or more

There is no population figure for Northern Ireland’s output areas yet.

What is the population of Northern Ireland?

Northern Ireland had 1,903,175 usual residents at the census.

Northern Ireland is the least populated of 4 in the UK.

Population

Nation
1,903,175
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

Northern Ireland had 1,903,175 usual residents at the census.

Northern Ireland is the least populated of 4 in the UK.

Population estimate

Nation
1,928,446
ONS population estimates · 2025

Northern Ireland’s population was an estimated 1,928,446 in mid-2025.

The population held steady in the year to mid-2025.

Northern Ireland is least populated of 4 for population.

Aged 15 to 64

Nation
63.7%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

63.7% of residents in Northern Ireland were aged 15 to 64 at the census.

Aged 65 and over

Nation
17.2%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

17.2% of residents in Northern Ireland were aged 65 or over at the census.

Aged under 15

Nation
19.2%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

19.2% of residents in Northern Ireland were aged under 15 at the census.

Born outside the UK

Nation
8.7%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

8.7% of residents in Northern Ireland were born outside the UK.

Disability

Nation
24.3%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

24.3% of residents in Northern Ireland had their day-to-day activities limited by a long-term health problem or disability.

Good or very good health

Nation
78.7%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

78.7% of residents in Northern Ireland said their health was good or very good.

Households

Nation
768,811
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

Northern Ireland had 768,811 households at the census.

Northern Ireland is lowest of 4 for the number of households.

Households without a car or van

Nation
19.5%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

19.5% of households in Northern Ireland had no car or van at the census.

Owner-occupied homes

Nation
65.2%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

65.2% of households in Northern Ireland owned their home at the census.

Population density

Nation
133 per km²
Worked out by Open Index · 2021

Northern Ireland had 133 people per square kilometre at the census.

Worked out by Open Index from census population counts and the area of each place.

Private rented homes

Nation
17.2%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

17.2% of households in Northern Ireland rented privately at the census.

Social rented homes

Nation
15.3%
ONS Census 2021 and Scotland's Census 2022 and NISRA Census 2021 · 2021

15.3% of households in Northern Ireland rented from a council or housing association at the census.

Degree-level qualifications

NationEngland, Wales and Northern Ireland only
32.1%
ONS Census 2021 and NISRA Census 2021 · 2021

32.1% of residents aged 16 and over in Northern Ireland had a degree-level qualification at the census.

Annual population change

Nation
0.0%
Worked out by Open Index · 2025

Northern Ireland’s estimated population changed by 0.0% in the year to mid-2025.

Worked out by Open Index from the mid-year population estimates.

Against United Kingdom
100% lower0.3%
Against the UK
100% lower0.3%