Northern Ireland’s population was 1.93 million in mid-2025. Annual growth slowed to 0.03%, net migration turned negative, and population ageing continued, with those aged 85+ up by 24% since 2015.
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ALT Line chart showing Northern Ireland's population from 2000 to 2025. The population increased steadily from around 1.68 million in 2000 to 1.93 million in 2025. Growth slowed in recent years, with the population largely unchanged at 1.93 million between 2024 and 2025
ALT Line chart showing annual population growth in Northern Ireland from 2000 to 2025. Population growth increased during the mid-2000s, peaking at 1.07% in 2007, before generally declining over time. Growth slowed to 0.03% in 2025, the lowest positive growth rate shown on the chart.
ALT Flow diagram showing components of population change between 2024 and 2025. Northern Ireland's population increased from 1,927,900 to 1,928,400. Natural change added 1,400 people, net migration reduced the population by 800 people, and other changes reduced the population by 100 people. Natural change was the sole driver of population growth in 2025.
ALT Line chart showing annual net population change in Northern Ireland from the early 2000s to 2025, split into natural change, migration and overall change. Natural change remained positive throughout the series but fell to its lowest level in 2025. Migration became negative in 2025 for the first time since 2021, contributing to a marked slowdown in overall population growth.