Smallest States in the US by Area: All 10 Ranked

The United States spans nearly 9.8 million km², but not all states share equally in that vast territory. The 10 smallest states by area could fit inside Alaska more than 100 times over. Despite their small size, many of these states punch far above their weight in population density, economic output, and historical significance. Here is the complete ranking.

10 Smallest US States by Total Area

Rhode Island: America's Smallest State

Rhode Island covers just 4,001 km², making it smaller than many individual counties in western states. Despite its tiny size, it has an official name that is one of the longest: "State of Rhode Island and Providence Plantations" (shortened officially in 2020). You could fit approximately 425 Rhode Islands inside Alaska, the largest state. Despite its small area, Rhode Island has over 640 km of coastline thanks to Narragansett Bay, which reaches deep into the state.

New Jersey: Small but Densely Packed

While New Jersey ranks only 4th smallest by area, it is the most densely populated state in the entire country at 411 people per km². Its position between New York City and Philadelphia makes it one of the most urbanized corridors in America. Despite its "Garden State" nickname, nearly 95% of New Jersey's population lives in urban areas, and it has more diners per capita than any other state.

Small States, Big History

Many of the smallest states played outsized roles in American history. Delaware was the first state to ratify the US Constitution on December 7, 1787, earning it the nickname "The First State." Massachusetts was home to the Plymouth Colony (1620) and the cradle of the American Revolution, hosting the Boston Tea Party and the battles of Lexington and Concord. Connecticut is known as the "Constitution State" because its Fundamental Orders of 1639 are considered the first written constitution in the Western tradition.

Size Comparisons

To put these sizes in perspective: Rhode Island is about the same size as the county of Los Angeles, California. The entire state of Delaware is smaller than Yellowstone National Park. You could fit all 10 of the smallest states inside Texas and still have room left over. Hawaii, despite being an archipelago of 137 islands, has a total area smaller than Maryland. Vermont, while similar in area to New Hampshire, has less than half its population, making it one of the most rural states in the Northeast.

Key Facts

• Rhode Island (4,001 km²) is the smallest state -- about 425 could fit inside Alaska.
• New Jersey is the most densely populated US state at 411 people per km².
• Delaware was the first state to ratify the Constitution (December 7, 1787).
• All 10 smallest states combined (246,051 km²) are still smaller than Texas (695,662 km²).
• Hawaii is the only small state not on the mainland US.
• Vermont has the second-smallest population of any US state (~647,000).

Fun Facts

• Rhode Island's official name was the longest of any state until it was shortened by voter referendum in 2020.
• Delaware has no sales tax, making it a shopping destination for residents of neighboring states.
• Connecticut's highest point (Bear Mountain, 725m) would barely qualify as a foothill in Colorado.
• New Hampshire hosts the first presidential primary every 4 years -- outsized political influence for a small state.
• West Virginia is the only state entirely within the Appalachian region and was created by seceding from Virginia during the Civil War.

Final Thoughts

The smallest US states prove that size isn't everything. From Rhode Island's tiny footprint to New Jersey's extraordinary density, these states combine rich history, diverse geography, and significant economic power. Their compact size often means shorter commutes, tight-knit communities, and a concentration of cultural landmarks that make them fascinating places to explore.