Why do immigrants come to america

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Last updated: April 8, 2026

Quick Answer: Immigrants come to America primarily for economic opportunities, family reunification, and safety from persecution. According to U.S. Census data, over 45 million immigrants lived in the U.S. in 2021, representing about 13.7% of the population. Major waves include the 1880-1920 period when over 20 million arrived, and recent decades where Asia and Latin America became primary sources. Legal pathways include family-sponsored visas (about 226,000 in 2022) and employment-based visas (about 141,000 in 2022).

Key Facts

Over 45 million immigrants lived in the U.S. in 2021, about 13.7% of the population
During 1880-1920, over 20 million immigrants arrived, mainly from Europe
In 2022, the U.S. issued about 226,000 family-sponsored immigrant visas
In 2022, the U.S. issued about 141,000 employment-based immigrant visas
As of 2021, about 28% of immigrants came from Asia, 25% from Mexico, and 13% from other Latin American countries

Overview

Immigration to America has been a defining feature of U.S. history since colonial times, with distinct waves shaping the nation's demographics. The first major wave occurred from the 1840s to 1920s, bringing over 30 million Europeans, particularly during 1880-1920 when Ellis Island processed millions. The Immigration and Nationality Act of 1965 abolished national-origin quotas, shifting sources from Europe to Asia and Latin America. By 2021, immigrants comprised 13.7% of the U.S. population, with Mexico (25%), India (6%), China (5%), and the Philippines (4%) as top birth countries. Historical milestones include the 1882 Chinese Exclusion Act, the 1924 Immigration Act establishing quotas, and the 1986 Immigration Reform and Control Act granting amnesty to nearly 3 million undocumented immigrants.

How It Works

Immigration to the U.S. operates through legal pathways managed by agencies like USCIS and the Department of State. Family-based immigration allows U.S. citizens and lawful permanent residents to sponsor relatives, accounting for about 65% of legal immigration annually. Employment-based immigration includes categories for priority workers, professionals, and skilled laborers, with caps varying by country. Refugee and asylum programs provide protection for those fleeing persecution, with the U.S. admitting about 25,000 refugees in 2022. The Diversity Visa Lottery allocates 55,000 visas annually to countries with low immigration rates. Undocumented immigration occurs through border crossings or visa overstays, with an estimated 10.5 million undocumented immigrants in 2021. Policies like DACA (2012) have provided temporary relief for certain arrivals.

Why It Matters

Immigration significantly impacts America's economy, culture, and global standing. Economically, immigrants contribute about $2 trillion annually to GDP and fill critical labor gaps in sectors like healthcare, agriculture, and technology. Culturally, they enrich American society through diverse traditions, languages, and innovations, with foreign-born individuals founding 55% of U.S. startup companies valued at $1 billion or more. Demographically, immigration helps offset declining birth rates, supporting programs like Social Security. Globally, America's immigrant-friendly reputation reinforces its leadership, though debates continue over integration, border security, and economic effects. Understanding these dynamics is key to shaping inclusive policies that balance humanitarian, economic, and security interests.