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Remember to check the key resources:
ICPSR Data Archive
Access to thousands of social science datasets for research and instruction. A first place to start in looking for social science data for secondary analysis.
Roper Center For Public Opinion Research
one of the world's leading archives of social science data, specializing in data from surveys of public opinion.
Immigration / Refugees
Children of Immigrants Longitudinal Study, 1991-2006 (ICPSR 20520)
Designed to study the adaptation process of the immigrant second generation which is defined broadly as United States-born children with at least one foreign-born parent or children born abroad but brought at an early age to the United States.
Immigration Data & Statistics, Dept of Homeland Security
Data on permanent residents, refugees & asylees, naturalizations, non-immigrant admissions, and enforcement actions.
Latin American Migration Project (LAMP)
LAMP is a multidisciplinary research project investigating migration flows originating in Latin American countries, including Puerto Rico, the Dominican Republic, Nicaragua, Costa Rica, Haiti, Peru, and Guatemala.
Mexican Migration Project (MMP)
A bi-national research effort to gather social as well as economic information on Mexican-US migration. The data collected has been compiled in a comprehensive database that is available to the public free of charge for research and educational purposes
Migration Data Hub
Hosted by the Migration Policy Institute a non-partisan, non-profit think tank. Data and maps related to US and international migration available.
Migration Data Portal, International Organization for Migration
Interactive map provides 66 migration data indicators from 17 different international data sources broken down by country, region and sub-region. Thematic data and reports are also provided. IOM Data
addresses migration governance, missing migrants, victims of trafficking and abuse, migrant training, resettlement, internally displaced persons, irregular migrant flows, return & reintegration, migrant health, migrants and the environment.
UN High Commissioner for Refugees, Data
Statistical yearbooks, global trends, resettlement data (updated monthly), operational data on current emergencies, and maps.