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Constitution of Missouri

The supreme law of Missouri, alongside the U.S. Constitution.

Ratified
1945
Amendments
21

Overview

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American state constitution

1945 Constitution of the State of Missouri
Map of the United States, showing the location of Missouri in red. Missouri is roughly in the center of the United States, south of Iowa, West of Illinois, Kentucky, and Tennessee, North of Arkansas, and East of Kansas, Nebraska, and Oklahoma.
Location of the state of Missouri within the United States
Overview
Jurisdiction
Subordinate to
Created
Ratified
Government structure
Branches
Chambers
Executive
Judiciary
History
Amendments
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Supersedes

The Missouri Constitution is the state constitution of the U.S. State of Missouri. It is the supreme law formulating the law and government of Missouri, subject only to the federal Constitution, and the people. The fourth and current Missouri Constitution was adopted in 1945. It provides for three branches of government: legislative (the Missouri General Assembly), executive (the Governor of Missouri), and judicial (the [Supreme Court of Missouri](https://en.wikipedia.org/wiki/Supreme_Court_of_Missouri "S

Sourced from Wikipedia (CC-BY-SA 3.0). For the official text, consult the Missouri Secretary of State.

Indexed on June 27, 2026

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.