What is Birthright Citizenship?
Understanding how the Constitution establishes citizenship—and why that guarantee matters in a constitutional democracy.
Every nation has rules for determining who belongs. In the United States, one of the most important is birthright citizenship: the constitutional principle that people born in the U.S., and subject to its jurisdiction, become citizens at birth.
Citizenship shapes a person’s relationship with the country they call home. It establishes legal rights and responsibilities while defining a person’s place within the nation’s civic community. Throughout American history, the rules for determining citizenship have changed significantly. Today, one of the most common ways people become U.S. citizens is through birthright citizenship. Although the term often appears in political and legal debates, the idea is fairly simple.
Understanding birthright citizenship helps us understand not only how citizenship is determined but also how the Constitution defines who belongs.
Illustration of a baby mobile featuring stars, a crescent moon, a birth certificate, the outline of the United States, and a U.S. passport, representing birthright citizenship.
Where it comes from
Birthright citizenship generally means that people born on a country’s soil become citizens at birth. In the U.S., this principle applies to people born in the country who are also subject to its jurisdiction.
The principle is sometimes called jus soli, a Latin phrase meaning “right of the soil.” It appears in the Fourteenth Amendment, which states that all people “born or naturalized in the United States, and subject to the jurisdiction thereof,” are citizens.
Why was it adopted
Birthright citizenship has roots in English common law, which generally treated people born within a sovereign’s territory as subjects from birth. This tradition influenced early American law, but when it came time to decide who was actually a citizen, the original Constitution wasn't quite clear on that.
That omission had serious consequences. In Dred Scott v. Sandford (1857), the Supreme Court held that Black Americans descended from enslaved people could not be U.S. citizens, including those born in the country.
After the Civil War ended slavery, the Fourteenth Amendment was adopted in 1868. The Fourteenth Amendment constitutionally overruled Dred Scott by establishing a national rule for citizenship and recognizing formerly enslaved people and their children as U.S. citizens.
Who it includes
Birthright citizenship generally applies to people born in the United States who are subject to its jurisdiction. It does not depend on someone’s race, ancestry, or family background.
There are a few narrow exceptions. For example, children born to accredited foreign diplomats generally do not receive U.S. citizenship at birth because diplomatic families have a special legal status.
Birthright citizenship is not only a rule about legal status but also a safeguard against exclusion and one way the Constitution defines equal membership in the nation.
How it differs from other legal statuses
Most U.S. citizens become citizens in one of two ways: by birth or through naturalization. Permanent residency is different. Lawful permanent residents may live and work in the United States indefinitely, but they are not citizens unless they later become naturalized.
Why it matters in a constitutional democracy
Birthright citizenship creates a clear and predictable constitutional rule for determining who is a citizen. Rather than leaving that decision to changing political preferences, the Constitution establishes a standard that applies equally to people who meet its requirements.
By placing this guarantee in the Constitution, the United States established citizenship as a constitutional principle rather than a status that could be redefined through ordinary law.
That matters in a constitutional democracy because citizenship determines who belongs to the political community and who holds the rights and responsibilities that come with membership in it. By establishing citizenship at birth, the Fourteenth Amendment helped protect that status from selective denial based on race, ancestry, or family background.
In that sense, birthright citizenship is not only a rule about legal status but also a safeguard against exclusion and one way the Constitution defines equal membership in the nation.
Birthright citizenship is more than a legal rule. It reflects a constitutional commitment to defining citizenship through a clear, predictable standard rather than through changing political circumstances. Understanding that principle clarifies who is a citizen and how the Constitution shapes the relationship between people and their government.
Continue exploring the Civic Glossary
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Public value. Consider what governments and public institutions are meant to create for people and communities—and how that value is defined.
Animated illustration by Summer 2026 intern, Gina Bae.
