United States v. Wong Kim Ark
The Court ruled that a man born in San Francisco to Chinese immigrant parents was a U.S. citizen by birth under the Fourteenth Amendment, even though federal law barred his parents from ever becoming naturalized citizens themselves.
The decision established that nearly everyone born on American soil is automatically a citizen regardless of their parents' race or citizenship status, a rule that has anchored American birthright citizenship ever since.
How it got here: A federal district court had granted habeas corpus, ruling Wong Kim Ark was a citizen entitled to enter; the government's exclusion decision was then reviewed by the Supreme Court.
The Case in Depth
What happened
Wong Kim Ark was born in San Francisco in 1873 to Chinese parents who were permanently and lawfully living in the United States, running a business, and not serving in any diplomatic role for China. After a temporary visit to China in 1894, he returned to the United States and was denied entry by customs officials, who said he was not a U.S. citizen.
The question before the Court
Could a man born in San Francisco to Chinese immigrant parents, who were themselves barred from becoming U.S. citizens, still be a U.S. citizen by birth?
The Court's answer
Yes — the Court ruled that Wong Kim Ark was a U.S. citizen by birth under the Fourteenth Amendment, because he was born on American soil and his parents, though Chinese subjects, were permanently and lawfully living in the United States and not serving in any diplomatic capacity. The phrase "subject to the jurisdiction thereof" excludes only children of foreign diplomats, children born during a hostile military occupation, and members of Indian tribes owing direct allegiance to their tribe — none of which applied to Wong Kim Ark's parents.
Because his citizenship arose automatically at birth under the Constitution, no act of Congress — including the Chinese Exclusion Acts — could strip it away or prevent his reentry into the country.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
The ruling secured citizenship for children born on U.S. soil to immigrant parents who could not themselves naturalize, a principle that has since applied broadly to children of noncitizen parents. It also meant the Chinese Exclusion Acts, which barred Chinese laborers from entering the country, could not be used against someone who was a citizen by birth.
What changes now
This is a final merits decision resolving the constitutional question, not a temporary order. Wong Kim Ark's citizenship was confirmed and the exclusion laws could not be applied to bar his reentry. Going forward, the ruling settled that children born on U.S. soil are citizens regardless of their parents' race, national origin, or eligibility for naturalization, a rule that has continued to govern American citizenship law.
What this does not decide
The Court did not revisit whether children of foreign diplomats, invading enemy forces, or tribal members still owing allegiance to their tribe are citizens — it treated those as already-settled exceptions. It also did not address citizenship for children of parents only briefly or temporarily passing through the country.
Concurrences and dissents
Dissent — Justice Fuller
“Nobody can deny that the question of citizenship in a nation is of the most vital importance.”Fuller stresses the high stakes of the citizenship question while disagreeing with the majority's approach.
Chief Justice Fuller argued that the English common-law birthplace rule was never fully adopted in America and that citizenship should instead depend on the parents' allegiance, not mere birthplace. He contended that because Chinese immigrants were barred by treaty and statute from becoming citizens themselves, their children born here should not automatically become citizens either. He would have held Wong Kim Ark was not a citizen and reversed the lower court.
How the Court got there
The legal reasoning, step by step
- The Court read the Fourteenth Amendment's citizenship clause against centuries of English and American common law, under which a person's birthplace within a country's territory and jurisdiction — not the parents' nationality — determined citizenship, a rule known as birthright citizenship or jus soli.
- Under this common-law rule, only a few narrow exceptions existed: children of foreign diplomats, children born during a hostile military occupation of the country, and, in America, children born to members of Indian tribes still owing direct allegiance to their tribe rather than the United States.
- Because Wong Kim Ark's parents were not diplomats, were not part of any hostile occupying force, and were permanently and lawfully settled in the United States conducting business, the Court found none of the recognized exceptions applied to him.
- The Court rejected the argument that citizenship should instead follow the parents' nationality, a rule used in some European countries, finding no evidence that the framers of the Fourteenth Amendment intended to replace the traditional birthplace rule with that approach.
- The Court held that Congress's separate decision to bar Chinese immigrants from naturalization under the Chinese Exclusion Acts had no bearing on birthright citizenship, since the Constitution grants citizenship directly to those born here without requiring any act of Congress.
- Applying this reasoning, the Court concluded that Wong Kim Ark became a citizen automatically at birth and never lost that status, so the Chinese Exclusion Acts could not be used to keep him out of the country.
Doctrinal impact
Cases affected by this decision
Distinguishes Elk v. Wilkins (112 U.S. 94)
Limited that ruling to Native tribal members owing allegiance to their tribe, not extended to children of other resident foreign parents.