The smallest state in the USA by area is Rhode Island. With a land area of just 1,214 square miles (3,144 square kilometers), Rhode Island is the smallest state in both the contiguous United States and the overall country. It occupies just 0.4% of the total land area of the USA.

Smallest State by Population:

The smallest state in the USA by population is Wyoming. According to the 2020 census, Wyoming has a total population of 576,851 inhabitants. Wyoming's population density is also the lowest in the country, at 5.8 people per square mile (2.2 people per square kilometer).