United Nations University – World Institute for Development Economics Research (UNU-WIDER) World Income Inequality Database (WIID) collects and stores information on income inequality for developed, developing, and transition countries. Contents include an update of the Deininger & Squire database from the World Bank, and estimates from the Luxembourg Income Study (LIS).

Find MDG Indicator data by country or region.

World Bank data which complements the UN MDG data.

The World Bank's poverty reduction projects and programs span all sectors and areas of their work. They are supported by thorough analysis to make sure Bank lending operations benefit the poor and vulnerable in the countries they serve.
An online library of reports (including statistical data) on poverty and income inequality. Available data includes poverty and inequality measures generated from analytical reports, from national poverty monitoring programs, and from the World Bank’s Development Research Group. Social indicators included in data measurements include population, GNP per capita, income distribution, and expenditures on social programs. Use the quick links below:

Latest poverty and inequality indicators compiled from officially recognized international sources. Poverty indicators include the poverty headcount ratio, poverty gap, and number of poor at both international and national poverty lines. Inequality indicators include the GINI Index and income or consumption distributions. The database includes national, regional and global estimates. This database is maintained by the Global Poverty Working Group (GPWG), a team of poverty measurement experts from the Poverty Reduction and Equity Network, the Development Research Group, and the Development Data Group.

Comprehensive migration statistics

AidData contains data on commitments and disbursements for the period 1945-2009.

USAID funded technical and program documentation

Established in 1960, IDA aims to reduce poverty by providing interest-free credits and grants for programs that boost economic growth, reduce inequalities and improve people’s living conditions.

Bilateral and multilateral assistance figures

Site of agency overseeing U.S. foreign assistance programs

Collection of links to international development-related sites and documents

Annual assessments by the World Bank

The Global Poverty Mapping Project seeks to enhance current understanding of the global distribution of poverty and the geographic and biophysical conditions of where the poor live. Additionally, the project aims to assist policy makers, development agencies, and the poor themselves in designing interventions to reduce poverty.

International Fund for Agricultural Development (IFAD)