DEDelaware
First State · Capital: Dover · Northeast (Mid Atlantic)
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Bordering states: Maryland, Pennsylvania, New Jersey.
4 fun facts about Delaware
- Was the first state to ratify the US Constitution, on December 7, 1787.
- It's the second smallest state by area but home to more than half of all Fortune 500 companies (legally — they incorporate here for tax reasons).
- The state has only three counties — the fewest of any state.
- President Joe Biden was born in Scranton, PA, but represented Delaware in the US Senate for 36 years.
Frequently asked questions about Delaware
Is Delaware a US state?
Yes, Delaware is one of the 50 US states. It was admitted to the Union in 1787, making it the 1st state. Its capital is Dover and its largest city is Wilmington.
What is the capital of Delaware?
The capital of Delaware is Dover. Note that the largest city in Delaware is Wilmington, not the capital — a common point of confusion.
When did Delaware become a state?
Delaware became a US state in 1787. It is the 1st state admitted to the Union.
What is the abbreviation for Delaware?
The 2-letter USPS abbreviation for Delaware is DE.
How big is Delaware?
Delaware ranks #49 of 50 US states by area — one of the smallest US states.
What is the population of Delaware?
Delaware has a population of 1 to 5 million.
What region is Delaware in?
Delaware is in the Northeast region of the United States, per the US Census Bureau.
What time zone is Delaware in?
Delaware observes Eastern Time.
Learn more
→ How to learn the 50 states (full guide)