The United States’ identity as a nation of immigrants is powerfully quantified by its current demographics. With a total population exceeding 331 million, a significant portion of the country’s social and economic fabric is woven by those born outside its borders.

The Scale of Immigration
- Total Immigrant Population: There are approximately 47.7 million immigrants living in the United States.
- Proportion of Population: This means nearly 1 in 7 U.S. residents (or about 14.4% of the total population) is foreign-born.
Legal Status of Immigrants
The immigrant community is diverse in terms of their legal pathways and statuses:
- Naturalized Citizens: The largest group, comprising 27 million people, are immigrants who have gone through the naturalization process to become full U.S. citizens.
- Lawful Permanent Residents & Non-Citizens: Another 21 million immigrants reside in the country lawfully as green card holders (Lawful Permanent Residents), or under other authorized non-citizen statuses like temporary visas for work or study.
- Unauthorized Immigrants: An estimated portion of the total, represented in this data, consists of individuals residing in the country without legal authorization.
Historical Context and Impact
This data reflects both the enduring appeal of the United States as a destination and the culmination of decades of migration flows. Immigrants play crucial roles across all sectors of the American economy, from high-tech industries and healthcare to agriculture and service jobs. They contribute to population growth, cultural diversity, and entrepreneurial activity.
The figures also underscore the central role immigration plays in national policy debates, which continuously revolve around border security, legal pathways, integration, and the economic and social impacts of this large and vital segment of American society.