National

• Fast Facts - Fast Facts on U.S. immigration statistics includes a variety of topics including immigrant growth rates, the top ten immigrant-sending countries, and the primary sources of undocumented immigrants.
• MPI - The Migration Policy Institute is a nonprofit, nonpartisan think tank. Their fact sheets include demographic & social, language & education, workforce, and income & poverty data of the foreign-born population.

International

The Migration Policy Institute (MPI), a nonprofit, nonpartisan think tank, endeavors to effectively study local, national, and international policies that affect the movement of people. The MPI website effectively organizes the wealth of information it contains for ease of access. Using Census 2000 data, the links below indicate the distribution of various groups of immigrants by country, including the total foreign-born population and the five largest foreign-born groups.

• Foreign-born population (total)
• Foreign-born from Mexico
• Foreign-born from the Philippines
• Foreign-born from India
• Foreign-born from China
• Foreign-born from Vietnam
• Foreign-born from South America
• Foreign-born from the Caribbean
• Foreign-born from Africa
• Foreign-born from Iran