Shapiro v. Thompson
The Supreme Court struck down laws in Connecticut, Pennsylvania, and the District of Columbia that denied welfare assistance to needy families who had not lived in the jurisdiction for a full year, ruling that the waiting periods unconstitutionally punished people for exercising their right to move between states.
The decision established that laws burdening the fundamental right to interstate travel must serve a compelling government interest, a stricter test that reshaped how courts evaluate residency requirements for public benefits nationwide.
“the purpose of deterring the in-migration of indigents cannot serve as justification for the classification created by the one-year waiting period, since that purpose is constitutionally impermissible.”
The Court's core reason for rejecting deterrence of poor newcomers as a valid state goal.
How it got here: Three separate three-judge federal district courts struck down state and D.C. residency requirements for welfare; the losing officials appealed each ruling directly to the Supreme Court.
The Case in Depth
What happened
Vivian Thompson, a pregnant unwed teenager, moved from Massachusetts to Connecticut and was denied welfare because she hadn't lived there a year. Similar denials hit families in the District of Columbia and Pennsylvania who had recently moved from other states, including a cancer patient, a former psychiatric patient, and mothers fleeing hardship, all otherwise eligible for aid except for their length of residence.
The question before the Court
Could states and the District of Columbia refuse welfare benefits to otherwise-eligible poor families simply because they had lived there less than a year?
The Court's answer
No — the Court ruled that states and the District of Columbia could not deny welfare aid to otherwise-eligible families simply because they had lived there less than a year. Because moving between states is a constitutional right, the Court held that any law penalizing that choice needs a compelling government reason, and none of the reasons offered — discouraging poor newcomers, saving money, preventing fraud, or easing budget planning — met that bar.
The Court also rejected the argument that Congress had approved these waiting periods through the Social Security Act, finding that the federal provision merely tolerated state residency rules without endorsing them, and that Congress could not have authorized an equal-protection violation even if it had wanted to. The same reasoning doomed the District of Columbia's requirement under the Fifth Amendment.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Newly arrived poor families gained immediate access to welfare aid rather than facing a year-long wait, and the ruling made clear that governments cannot use benefit programs to discourage poor people from moving into their borders. The decision also shaped later legal fights over residency rules for other government benefits and services.
What changes now
The ruling is a final decision on the merits, striking down all three residency requirements immediately. States and the District of Columbia could no longer deny welfare to otherwise-eligible families based on a one-year waiting period, though the Court left open whether residency rules for other benefits, like voting or tuition, would survive the same strict standard.
What this does not decide
The Court expressly said it was not deciding the validity of waiting periods for other purposes, such as voting eligibility, tuition-free education, professional licensing, or hunting and fishing licenses, leaving those questions for future cases.
Concurrences and dissents
Concurrence — Justice Stewart
Justice Stewart wrote separately to rebut Justice Harlan's charge that the majority was inventing new 'fundamental rights.' He argued the Court was simply recognizing the long-established, independently protected constitutional right to travel, not creating a novel doctrine, and that any law impinging on that right must satisfy a compelling-interest test.
Dissent — Justice Warren
Chief Justice Warren argued Congress had power under the Commerce Clause to impose or authorize modest residency requirements, and that Congress had in fact approved them through the Social Security Act. He viewed the burden on travel as indirect and insubstantial, and criticized the majority for reaching the constitutionality of the federal provision unnecessarily.
Dissent — Justice Harlan
“to extend the "compelling interest" rule to all cases in which such rights are affected would go far toward making this Court a "super-legislature."”Harlan's central objection to expanding the compelling-interest test beyond racial classifications.
Justice Harlan objected to the expansion of the 'compelling interest' doctrine to nonracial classifications and fundamental-rights cases generally, warning it would turn the Court into a 'super-legislature.' He argued ordinary rational-basis review should apply, and that residency requirements served four legitimate purposes that outweighed the minimal burden on travel.
How the Court got there
The legal reasoning, step by step
- The Court identified that the one-year residency requirement created two classes of otherwise-identical needy families, denying aid solely based on how recently they had arrived.
- Because moving between states is a constitutional right, the Court held that any law penalizing that choice must be justified by a compelling governmental interest — the strictest test in constitutional law — rather than merely a rational reason.
- The Court rejected deterring poor newcomers from moving in as a legitimate goal at all, since discouraging migration by the needy is itself unconstitutional, regardless of how effectively a residency rule might achieve it.
- Turning to other justifications — administrative convenience, fraud prevention, budget predictability, and encouraging quick entry into the workforce — the Court found each failed the compelling-interest test, and some were not even factually used by the jurisdictions in practice.
- The Court concluded that a related Social Security Act provision merely tolerated state waiting periods without mandating or endorsing them, and that Congress itself could not authorize states to violate the Equal Protection Clause.
- Applying the same reasoning to the federally created District of Columbia requirement, the Court held that the Fifth Amendment's Due Process Clause forbids Congress from imposing the same kind of unjustified residency-based denial of aid.
Doctrinal impact
Cases affected by this decision
Reaffirms Katzenbach v. Morgan (384 U.S. 641)
Relied on for the principle that Congress cannot authorize states to violate the Equal Protection Clause.