- Delaware is the only state without any National Park System units such as national parks, seashores, historic sites, battlefields, memorials, and monuments
- In 1880 it cost all of $5.00 to paint the 87-foot Fenwick Island Light House in Delaware
- The Delaware Memorial Bridge connecting Delaware and New Jersey is the longest twin span suspension bridge in the world
- The only north-south portion of the Mason-Dixon line divides the town of Delmar so that half is in Maryland and half in Delaware
- Delaware is the 49th state in terms of area, but the 46th in population, with Alaska, Wyoming, Vermont, and North Dakota having fewer people
- Due to its favorable incorporation laws, in the 1990s more than half the Fortune 500 companies were incorporated in Wilmington, Delaware
- In 1880, the first beauty contest in the U.S. was held at Rehoboth Beach with Thomas Edison as one of the judges