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Tribal reservation status

Madison County v. Oneida Indian Nation of New York

Updated Oct 18, 2026

In brief

The Supreme Court wiped out the Second Circuit's judgment and sent the case back, without deciding the county's foreclosure authority or the reservation's status.

Where it stands
Decided

Decided 8-0 · January 10, 2011 · Per curiam

What it’s about
After a federal judge barred Madison County from foreclosing on Oneida Nation properties over unpaid taxes, the Second Circuit upheld that ruling based on tribal immunity.
Who it affects
The order left unresolved whether Madison County could foreclose on Oneida Nation properties and whether the ancient reservation had been ended or reduced.

Summary: written with AI from the case record.

Illustration for Madison County, New York v. Oneida Indian Nation of New York
Conceptual illustration · AI-generated

What it's about

The Supreme Court wiped out the ruling (vacated it) and sent the case back to the Second Circuit (remanded it) without resolving the underlying questions.

A federal judge had barred Madison County from foreclosing on Oneida Nation properties over unpaid taxes, and the Second Circuit upheld that ruling based on tribal immunity.

The case involved whether tribal immunity blocks tax foreclosures and whether New York's ancient Oneida reservation had been ended or reduced.

Question presented

Whether the ancient Oneida reservation in New York was disestablished or diminished.

What the Court decided

Holding

We vacate the judgment and remand the case to the United States Court of Appeals for the Second Circuit.

Result
Vacated

The vote

  • Joined the judgment
Majority · 8joined the Court's opinion
  1. Breyer
  2. Kagan
  3. Thomas
  4. Scalia
  5. Kennedy
  6. Ginsburg
  7. Roberts
  8. Alito
8 justices joined the judgment.

What's next

The case returned to the Second Circuit for further proceedings.

Documents

1

Docket activity

7
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: question_presented, extraction_metadata

    Oct 18, 2026 · Court records

Show 2 more
  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Opinion added: Madison County

    Jan 10, 2011 · Court records

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis