The smallest State is Rhode Island, at 1212 square miles. Washington, DC is only 61 square miles. (The Federal District of Washington, DC was originally supposed to be a square ten miles on a side, consisting of land ceded by Maryland and Virginia. Washington later returned the Virginia portion.)
So the answer is "There is none."
Punta gorda
No, as the District of Columbia is not classed as an official capital and the land space is smaller than any town anyway :D
smaller
it is smaller than the mall in Washington, DC
Japan is only slightly smaller than the US state of Montana. Japan has a total population of 127 million people.
state
A given county is smaller than the State it is located in. On the other hand, there are some counties that are so large that they are larger than the smallest States (that they are not in).
DC refers to the District of Columbia, which is not a state.
North Korea is smaller in size compared to Mississippi, which is the 32nd largest state in the United States.
Wyoming.
Hawaii
hawii