The Immigration Act of 1924, signed by President Calvin Coolidge on May 26, 1924, capped total annual immigration at roughly 165,000, assigned each country a quota based on the ethnic makeup of the United States decades earlier, and barred nearly all immigration from Asia. Known as the Johnson-Reed Act after Representative Albert Johnson and Senator David Reed, the statute (43 Stat. 153) replaced the temporary Emergency Quota Act of 1921 with a permanent system engineered to freeze the country’s demographic profile. It stayed on the books for 41 years, until Congress repealed the quota system in 1965.
How the National Origins Quota Worked
The law’s central mechanism was a two-phase quota. In the first phase, each country’s annual immigration allotment was set at 2 percent of the number of people from that country living in the continental United States as of the 1890 census, with a floor of 100 slots for any nation.1Immigration History. Immigration Act of 1924 (Johnson-Reed Act) The 1890 baseline was the point. By that date, the large waves of Southern and Eastern European immigration had not yet arrived, so Great Britain, Ireland, and Germany dominated the calculation. Italy, Russia, and Poland were left with tiny quotas.
Beginning in 1929, the formula shifted to what was intended as the permanent system. Each country’s annual quota would bear the same ratio to 150,000 as the number of U.S. inhabitants tracing their national origin to that country bore to the total U.S. population, using the 1920 census.1Immigration History. Immigration Act of 1924 (Johnson-Reed Act) The result was similar. Because most Americans in 1920 traced their ancestry to Northern and Western Europe, those countries still claimed most of the available visas.
The Annual Ceiling and Who Was Exempt
The overall cap was about 165,000 during the temporary phase and 150,000 under the permanent formula. That was roughly half the total the Emergency Quota Act of 1921 had allowed under its 3-percent-of-1910 rule.2San Diego State University. Emergency Quota Act of 1921
The numerical cap did not touch everyone. The Act carved out a broad “non-quota” category:
- Natives of Canada, Mexico, Cuba, Haiti, the Dominican Republic, the Canal Zone, or any independent Central or South American country, along with their spouses and minor children.
- The wife or unmarried child under 18 of a U.S. citizen.
- Immigrants previously lawfully admitted who were returning from a temporary trip abroad.
- Ministers and college professors who had practiced their vocation for at least two continuous years before applying.
- Bona fide students aged 15 or older entering to attend an approved school.
The Western Hemisphere exemption reflected agricultural labor demand in the Southwest and diplomatic considerations with neighboring countries.3Teaching Legal History. Immigration Act of 1924 Unused quota slots did not roll over. The ceiling was a maximum, not a target, and for many applicants the wait ran into decades.
The Ban on Asian Immigration
For most Asian immigrants, quotas were beside the point. Section 13(c) declared that no “alien ineligible to citizenship” could be admitted. That phrase relied on existing naturalization law, which since the 1870s had limited eligibility to “free white persons” and people of African descent.4National Archives. Race, Nationality, and Reality Federal courts had already ruled that people from most Asian countries fit neither category, so the clause functioned as a blanket exclusion without naming a single nationality.
Two recent Supreme Court decisions had cemented that legal foundation. In Ozawa v. United States (1922), the Court unanimously held that Takao Ozawa, a Japanese immigrant of 20 years’ residence, could not naturalize because he was “clearly not Caucasian.”5Justia Law. Ozawa v. United States, 260 U.S. 178 (1922) A year later, in United States v. Bhagat Singh Thind, the Court rejected an Indian immigrant’s argument that he was scientifically Caucasian, holding instead that “free white persons” should be read according to “the understanding of the common man.”6Library of Congress. United States v. Thind, 261 U.S. 204 (1923)
The provision ended the Gentlemen’s Agreement of 1907, under which Japan had voluntarily limited emigration in exchange for better treatment of Japanese residents in America. Ambassador Masanao Hanihara warned of “grave consequences” in a formal note to the State Department; exclusionists in Congress used the letter as evidence of foreign interference and pushed the bill through.
Filipinos were a temporary exception. Because the Philippines was a U.S. colony, Filipinos were classified as U.S. nationals rather than aliens and were exempt from both the quotas and the Asian exclusion.7Office of the Historian. The Immigration Act of 1924 (The Johnson-Reed Act) The Tydings-McDuffie Act of 1934 promised Philippine independence and reclassified Filipinos as aliens with an annual quota of 50.8GovInfo (Government Publishing Office). Tydings-McDuffie Act, 48 Stat. 456 (1934)
The Eugenics Campaign Behind the Design
The choice of the 1890 census was not accidental. It was the product of a sustained lobbying effort by the eugenics movement, which held that certain racial and ethnic groups were genetically superior and that immigration from “inferior” populations would degrade the American gene pool.
The operational bridge between eugenics and Congress was Harry Laughlin of the Eugenics Record Office. Beginning around 1920, Laughlin testified before the House Committee on Immigration and Naturalization that immigrants from Eastern and Southern Europe were disproportionately represented in prisons, mental hospitals, and charitable institutions. Committee Chairman Albert Johnson appointed him the committee’s official “expert eugenics agent.” By 1924 Laughlin was calling the bill “eugenically-crafted,” and the Eugenics Research Association displayed charts under the Capitol Rotunda tallying the taxpayer cost of supporting people it labeled “social inadequates.” Anchoring the quotas to the 1890 census, rather than a more recent one, reduced the share of slots available to Southern and Eastern Europeans from roughly 45 percent to about 15 percent.
The Consular Visa System
The Act also rewrote how people entered the country. Before 1924, immigrants boarded a ship, arrived at a port such as Ellis Island or Angel Island, and were inspected on arrival. The 1924 law reversed that sequence. Applicants now had to visit a U.S. consulate in their home country and obtain an immigration visa before booking passage.9GovInfo (Government Publishing Office). 43 Statutes at Large 153 – Immigration Act of 1924 Consular officers reviewed personal histories, medical records, and police certificates, and applicants had to submit two copies of their photograph. The visa fee was $9, paid to the U.S. Treasury.10San Diego State University. Immigration Act of 1924 The decision to admit or reject an immigrant now took place thousands of miles from American soil, and that basic architecture, overseas screening before travel, remains the foundation of the modern U.S. immigration system.
Creation of the Border Patrol
Strict quotas required enforcement at the land borders, where consular processing could be bypassed. Congress established the U.S. Border Patrol the same year. The numerical caps introduced by the 1921 and 1924 laws made unauthorized crossing a meaningful category for the first time; before those limits, there was little incentive to enter outside official channels.11U.S. Customs and Border Protection. Border Patrol History
What the Quotas Meant in the 1930s
The system’s design became lethal in the following decade. The United States had no separate refugee policy, so Jews fleeing Nazi persecution had to apply through the same quotas built to exclude Eastern and Southern Europeans. By June 1938, about 139,000 people were on the German quota waiting list. A year later the list topped 309,000. A Hungarian applying in 1939 faced an estimated forty-year wait. Unused slots did not carry over. Roughly 110,000 Jewish refugees reached the United States between 1933 and 1941; hundreds of thousands more applied and were turned away.12United States Holocaust Memorial Museum. Immigration to the United States 1933-41
Repeal in 1965
The national origins system lasted 41 years. Congress dismantled it with the Immigration and Nationality Act Amendments of 1965, known as the Hart-Celler Act, which replaced the country-by-country quotas with a preference system built on family reunification and professional skills. Roughly 74 percent of visas were allocated to family-based categories and the remainder to skills-based immigration.7Office of the Historian. The Immigration Act of 1924 (The Johnson-Reed Act) The 1965 law also imposed the first numerical limits on Western Hemisphere immigration, closing the exemption the 1924 statute had left open. Within two decades, immigration shifted heavily toward Latin America and Asia, the opposite of what the architects of the 1924 Act had set out to preserve.