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IL

Illinois

State Constitution

Capital
Springfield
Admitted to Union
December 3, 1818
Current Constitution
1970
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Read the Full Constitution

Access the complete, current text of the Illinois Constitution through the comprehensive 50 Constitutions database maintained by the State Democracy Research Initiative at the University of Wisconsin Law School.

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Source: 50constitutions.org

Overview

The Illinois Constitution of 1970 serves as the fundamental law of the state, establishing the framework for government and protecting the rights of its citizens.

History

Illinois was admitted to the Union on December 3, 1818.

The current constitution was adopted in 1970. State constitutions are often amended more frequently than the federal Constitution, reflecting changing needs and values of state residents.

Structure of Government

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Legislative

State Legislature

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Executive

Governor & Cabinet

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Judicial

State Courts

Bill of Rights

Like the U.S. Constitution, the Illinois Constitution includes protections for individual rights and liberties. State constitutions often provide broader protections than the federal Constitution, serving as a "floor" rather than a "ceiling" for rights.