Mississippi v. Louisiana
350 U.S. 5 · Decided October 17, 1955 · Supreme Court of the United States
Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.
At a glance
Mississippi v. Louisiana was decided on October 17, 1955 unanimously (9–0). SCDB classifies its main issue as “Boundary dispute between states” in the Interstate Relations area.
Read the opinion
Case details
- Citations
- 350 U.S. 5 · 76 S. Ct. 29 · 100 L. Ed. 2d 6 · 1955 U.S. LEXIS 272
- Docket number
- 11 ORIG
- Decided
- October 17, 1955
- Argued
- October 11, 1955
- Court era
- Warren Court
- Decision type
- Decree
- Outcome for petitioner
- The petitioning party did not receive a favorable disposition
- Vote
- 9–0 (unanimous)
- Opinion assigned by
- Earl Warren
- How the case arrived
- Original jurisdiction
- Issue (SCDB)
- Boundary dispute between states
- Issue area
- Interstate Relations
- Decision direction (SCDB)
- Unspecifiable what this means
How the Justices voted
| Justice | Vote | Separate writing |
|---|---|---|
| Justice Hugo L. Black | Majority | |
| Justice Stanley F. Reed | Majority | |
| Justice Felix Frankfurter | Majority | |
| Justice William O. Douglas | Majority | |
| Justice Harold H. Burton | Majority | |
| Justice Tom C. Clark | Majority | |
| Justice Sherman Minton | Majority | |
| Chief Justice Earl Warren | Majority | |
| Justice John M. Harlan II | Majority |
Full case caption
Mississippi v. Louisiana
SCDB identifiers: case 1955-003, docket 1955-003-01.
Related decisions
Other cases on “Boundary dispute between states”
- Durfee et Ux. v. Duke
- Louisiana v. Mississippi
- Arkansas v. Tennessee
- Arkansas v. Tennessee
- Illinois v. Missouri
- Arkansas v. Tennessee
Same Term, same area (Interstate Relations)
Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error