On what date does the United States’ 250th anniversary fall?

The United States’ 250th anniversary falls on July 4, 2026.

That date marks 250 years since the Second Continental Congress adopted the Declaration of Independence in 1776. July 4 became the familiar national anniversary date because the document was dated and publicly associated with that day, even though Congress voted for independence on July 2 and the signing process continued afterward.

The 2026 observance is therefore both an Independence Day celebration and the semiquincentennial of American independence. It follows the national bicentennial in 1976, which marked 200 years. America250 planning treated the 2026 anniversary as the culmination of years of commemorative programs and events across the United States.