Leading knowledge centre on mixed migration

Using evidence to shape migration policies and programmes

Grounded in the experiences of refugees and migrants, we provide high-quality data, research and analysis to improve mixed migration policies and strengthen protection and assistance for people on the move

150,000

Surveys with refugees and migrants since 2014

950+

Publications on Mixed Migration

31

Countries of data collection in 2025

150+

Enumerators interviewing migrants & refugees around the world

Latest Resources and Insights

Research Reports and Papers

Migration from Burkina Faso to northern Côte d’Ivoire in the context of climate change

What adaptation strategies are available for Burkinabè migrants working in the agricultural sector?

Migration from Burkina Faso to northern Côte d'Ivoire in the context of climate change
Photo: © Charles O. Cecil
MMR 2026 Article

Born of crisis, bypassed in crisis: the EU Pact on Migration and Asylum after Ceuta

MMR 2026 Article

Across Bab el-Mandeb strait, Yemenis flee as migrants arrive

Research Reports and Papers

High-Level Policy Dialogue on Mobility, Environment and Climate Change in the East and Horn of Africa

Snapshots and Infographics

How access to information impacts refugees’ and migrants’ experiences on their journey to Senegal

Article

Ceuta: a test of Europe’s new migration pact – and a familiar failure

Snapshots and Infographics

Sudanese journeys reaching the Western Mediterranean Route

Map showing transit survey percentages across North African countries
Article

Renewed hostilities in northern Ethiopia: mixed migration consequences

People and animals crossing river in arid landscape.
MMR 2026
Photo: Jason Rizzo/MSF.
insights from people on the move

4Mi Migration Data

4Mi Migration Data is our global primary data collection system which captures first-hand accounts from migrants and refugees on the move. Data is collected through surveys along major mixed migration routes and is made publicly accessible through the 4Mi Data Explorer.  The 4Mi Data Explorer is updated quarterly with thousands of new interviews. With over 100,000 interviews to date, it provides direct insights into mixed migration journeys worldwide.

World map showing migration interview data by location.

4Mi Data Explorer

WHAT IS MIXED MIGRATION?

Mixed migration refers to cross-border movements of people including refugees fleeing persecution and conflict, victims of trafficking and people seeking better lives and opportunities.

We contribute to the following migration dialogues

Projects, Events and Media coverage

Strengthening protection and coordination for displaced LGBTQI+ communities in Kenya

Projects
Photo: Maureen Mbingu 2023

Launch of the Mixed Migration Review 2026: “Migration in the Age of Polycrisis”

Save the Date: 10th of November, 14:00 – 15:30 CET

migration in the age of polycrisis
Events
Trouw

People who risk their lives to reach Europe won’t be deterred by a detention centre (Dutch)

Bram Frouws on the lack of evidence that deterrence policies discourage migration to Europe

Trouw newspaper logo in blue text.
Media coverage

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