Constitution Day is September 17, 2025. In September of 1787, the Founding Fathers signed the most influential document in American history: The United States Constitution. We commemorate Constitution Day every year in remembrance of our rights and freedoms as citizens of the United States.
Constitution Day is an American federal observance that recognizes the adoption of the United States Constitution and those who have become U.S. citizens. It is normally observed on September 17, the day in 1787 that delegates to the Constitutional Convention signed the document in Philadelphia. This observance is documented by Federal Law in the United States Code at 36 U.S. Code § 106.
One theme this year for our Constitution Day celebration is freedom. Please stop by the library and visit the traveling exhibit Freedom in the United States, available at the library from 9/2/2025 until 9/25/2025.
For more information, visit our Constitution Day guide.
You can also pick up your free copy of the Constitution in the library, while supplies last!