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From its inception, the United States has been a country of immigrants. These charts focus on immigration patterns and characteristics of the immigrant population through time. By placing immigration to the United States in its broader historic context, the characteristics of today's migration flows and the immigrant communities they establish can be better understood.

• Age and Sex Distribution
• Immigration: A Historical Perspective
• Region of Birth of the Foreign Born
• Immigrant Source Countries Since 1960
• Share of Foreign Born in US Labor Force

Age and Sex Distribution

• Age-Sex Pyramids of the Total, Native, and Foreign-Born Populations, Including the Five Largest Foreign-Born Groups: 2000
• Age Distribution of the Foreign Born as a Percentage of the Total Foreign-born Population, for the United States: 1870 to 2000
• Median Age of the Foreign-Born Population, for the United States: 1870 to 2000
• Foreign-born Males per 100 Foreign-Born Females, for the United States: 1870 to 2000

• Immigration to the United States: Fiscal Years 1820 to 2001 (in millions)
• Immigration to the United States by Decade: Fiscal Years 1821 to 2000 (in millions)
• Foreign-Born Population and Foreign-Born as a Percentage of the Total Population for the United States: 1850 to 2006

• Foreign-Born Population by Region of Birth, for the United States: 1960 to 2000 (in millions)
• Foreign-Born Population by Region of Birth as a Percentage of the Total Foreign-Born Population, for the United States: 1960 to 2000

• Ten Source Countries with the Largest Populations in the United States as Percentages of the Total Foreign-Born Population: 1960
• Ten Source Countries with the Largest Populations in the United States as Percentages of the Total Foreign-Born Population: 1970
• Ten Source Countries with the Largest Populations in the United States as Percentages of the Total Foreign-Born Population: 1980
• Ten Source Countries with the Largest Populations in the United States as Percentages of the Total Foreign-Born Population: 1990
• Ten Source Countries with the Largest Populations in the United States as Percentages of the Total Foreign-Born Population: 2000
• Ten Source Countries with the Largest Populations in the United States as Percentages of the Total Foreign-Born Population: 2006

• Share of Foreign Born in the Total US Population and in the US Civilian Labor Force, 1970-2005