Migration Policy Institute Compiles Key U.S. Immigration Statistics
Key Takeaways
- The Migration Policy Institute (MPI) has published a consolidated set of frequently requested statistics on immigrants and immigration in the United States, covering population size, country of origin, legal status, and visa categories.
- Immigrants make up a substantial share of the U.S. population — roughly one in seven residents — and come from a wide range of countries, with Mexico, China, India, the Philippines, and El Salvador among the largest origin states.
- The statistics distinguish naturalized citizens, lawful permanent residents (LPRs or "green card" holders), temporary visa holders, refugees and asylees, and unauthorized immigrants, and they also summarize policy-relevant figures such as DACA recipients and employment-based visa use.
- For people navigating the immigration system now, MPI’s compendium offers context about wait times, common pathways, and group sizes that influence policy debates and administrative backlogs at agencies like USCIS (U.S. Citizenship and Immigration Services).
Overview of the MPI compilation
The Migration Policy Institute — a nonpartisan think tank — has assembled a go-to fact sheet collecting the most commonly requested statistics on immigrants and immigration in the United States. The document aggregates data on the foreign-born population’s size and share of the overall population, leading countries of origin, and the main legal statuses: naturalized citizens, lawful permanent residents (LPRs, or green card holders), temporary visa holders (students, H-1B and other employment visas, and others), refugees and asylees, and unauthorized immigrants. It also includes figures on programs and populations commonly cited in policy discussions, such as recipients of Deferred Action for Childhood Arrivals (DACA).
What the numbers tell us
The collection makes clear that immigrants are a large and diverse part of the U.S. social and economic fabric. MPI’s presentation highlights trends that matter for policy: where immigrants settle, which visa categories are most utilized for family and employment migration, and how many people are in humanitarian or unauthorized categories. These breakdowns help explain why certain visa backlogs occur — for example, long waits in some family- and employment-based categories — and why changes in administrative capacity at agencies such as USCIS can ripple across multiple groups. It has been reported that program-specific populations (for example, DACA recipients, refugees, or certain high-demand work visas) are central to current legal and legislative debates.
What this means for people going through the system
For applicants and families, the MPI compendium is a practical reference: it situates an individual’s case within the broader pool of applicants and clarifies which parts of the system are most congested. Practical takeaways include recognizing whether you are in a family-based, employment-based, humanitarian, or unauthorized cohort — each follows different processes and face different timelines. USCIS (U.S. Citizenship and Immigration Services) processing times, fee policies, and staffing levels will affect how long naturalization, green card, and visa adjudications take. For lawyers and advocates, the statistics provide evidence to support policy arguments and service planning; for migrants, they supply a clearer picture of how many others share their pathway and what systemic delays might mean in real terms.
Source: Original Article