Northern Ireland Longitudinal Study

An insight into the people of Northern Ireland and their major life events spanning 40 years

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Northern Ireland Longitudinal Study

More than 100 projects have been carried out using the NILS

See all previous projects here

Northern Ireland Longitudinal Study

The data can provide evidence for research into social issues and the evaluation of government policies

See how the NILS has contributed to evidence-based policy


The Northern Ireland Longitudinal Study (NILS) is a wide-ranging database of people and their major life events, stretching back decades. Census information for 1981 to 2011 is linked with other administrative datasets such as vital events, school data, property information, health card registrations, weather and pollution amongst others.

The data can provide evidence for research into social issues and the evaluation of government policies.

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Project News

COVID-19 Update

Given the latest restrictions imposed due to the Covid-19 pandemic, we regret to inform you that the NISRA secure environment will not reopen to researchers until next year.   This position will be reviewed in the...

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How to write a successful NILS application

We hope you are all staying safe and well during these times. Now, more than ever, health and social research will be essential to understanding and shaping the economic and societal recovery as we emerge...

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Data-Driven Society: Symposium Report

In January 2020, 85 delegates from local and central government, the voluntary, community and enterprise sector, academia and other interest groups attended the NILS collaborative symposium, Data-Driven Society: People, Places and Policy in Belfast City...

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