CaseTrail

Establishment of religion: Supreme Court decisions

Every U.S. Supreme Court decision from the 1946 through 2025 Terms that the Supreme Court Database classifies under the issue “Establishment of religion,” part of the First Amendment area.

36decisions
50%favorable to the petitioner
14%unanimous
13altered precedent or struck a law

Decisions by decade

1940s1
1960s9
1980s13
1990s4
2000s5
2010s2
2020s2

Most majority opinions

Legal provisions most often involved

First Amendment (establishment of religion)28
Fourteenth Amendment (equal protection)2
42 U.S.C. § 20001
First Amendment (speech, press, and assembly)1
42 U.S.C. § 3001
Fourteenth Amendment (due process)1

All 36 decisions, newest first

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