Tribal reservation status
Madison County v. Oneida Indian Nation of New York
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.

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
What's next
The case returned to the Second Circuit for further proceedings.
Documents
Opinions
Docket activity
New analysis added
AI analysis generated: Case Briefing
New analysis added
AI analysis generated: Decision Record
Case data updated: question_presented, extraction_metadata
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Case data updated: summary, question_presented, generation_metadata
Opinion added: Madison County
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.