Which is the Only U.S. State that Begins with the Letter ‘D’?

Last Updated: Feb 28, 2026, 08:26 EDT

Curious about which is the only U.S. state that begins with the letter ‘D’? Know the correct answer, interesting facts, famous places, and why this small state plays a big role in American history, business, and culture.

The United States has 50 states, and each state has a unique name that reflects history, geography, or culture. 

Some letters begin with many state names, while others are rare. In fact, only one U.S. state begins with the letter “D.”

Speaking about his home state’s growth and reputation, former governor Michael N. Castle once said, “This State has established itself as an institution of excellence in its own right and attracts a diversity of students from various races, socio-economic status and locations.”

According to the U.S. Census Bureau, this state has a population of just over one million people, making it one of the smallest states in the country. 

Which is the Only U.S. State that Begins with the Letter ‘D’?

When asked which is the only U.S. state that begins with the letter “D,” many people get confused. To make it simple, here are four options:

  1. Dover
  2. Dallas 
  3. Denmark 
  4. Delaware

Out of these four, only one is an actual U.S. state. The others are either cities or countries.

There are no other states among the 50 U.S. states that start with the letter “D.” This makes the answer unique and easy to remember once you know it.

The Only U.S. State Which Begins with the Letter 'D' is Delaware

Drum roll please! And the correct answer is option 'a.'

The only U.S. state that begins with the letter “D” is Delaware. Delaware is located on the East Coast of the United States. It borders Maryland, Pennsylvania, New Jersey and the Atlantic Ocean

Even though it is small in size, it has an important place in American history. Delaware is known as “The First State” because it was the first to ratify the U.S. Constitution in 1787.

Here are some quick facts:

  • The capital of Delaware is Dover, which is the state's second-largest city.

  • The Largest city of Delaware is Wilmington and the state's largest economic hub.

  • The Delaware population is 1,059,952 according to the U.S. Census Bureau.

  • The most famous nickname of Delaware is “The First State”.

Because it is small, many people overlook it on a map. However, its legal and business system makes it extremely important in the corporate world.

What is Delaware famous for?

Delaware is famous for several reasons beyond being the only state starting with “D.”

First, it is known as “The First State.” This title is officially recognized because it was the first to approve the U.S. Constitution.

Second, Delaware is famous for business incorporation. Many major companies in the United States are legally registered there because of its business-friendly laws.

Third, it has beautiful beaches along the Atlantic Ocean, especially in towns like Rehoboth Beach and Bethany Beach.

Other reasons Delaware stands out include:

  • No state sales tax

  • Strong financial services industry

  • Historic landmarks in Dover and Wilmington

Despite its small size, Delaware plays a big role in U.S. politics, history, and economics.

Read about Who was Neil Sedaka? The Singer Behind 'Calendar Girl' here.

Conclusion

The only U.S. state that begins with the letter “D” is Delaware. While it may be small in land area and population, it holds major historical and economic importance. From being the first state to ratify the Constitution to becoming a corporate hub, Delaware proves that size does not determine influence. Now you know the answer—and the story behind it.

Alisha Louis is a US Content Specialist with a Bachelor of Journalism and Mass Communication (BJMC) graduate degree. With over 3 years of experience and a keen eye for detail and a passion for storytelling, she specializes in covering trending news and educational developments across the United States. Her articles combine journalistic POV with engaging narratives, making complex topics accessible and relevant for global audiences. Dedicated to delivering timely and trustworthy content, Alisha brings a fresh, insightful perspective to every piece she writes.

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First Published: Feb 28, 2026, 18:56 IST

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