The First State of the United States of America is DELAWARE. It was the first state to ratify the Constitution of the United States on December 7, 1787. DELAWARE is located in the Mid-Atlantic region of the United States and is bordered by Pennsylvania, Maryland, and New Jersey. It is the second smallest state in the country with a population of just over 925, 000 people. DELAWARE is known for its beaches, tax-free shopping, and historical sites.