Citizenship Day 2025

Citizenship Day also known as Constitution Day is a federal holiday in the USA, and observed on September 17, 2025. On that day in 1787 the adoption of the United States Constitution was signed by delegates to the Constitutional Convention in Philadelphia.

We have placed a detailed description of this event on this page: Citizenship Day 2024. For further information please stop by there!

More dates:

• Citizenship Day on Sep 17, 2024
• Citizenship Day on Sep 17, 2025
• Citizenship Day on Sep 17, 2026