The United States
California is a US State and contains no states.
Washington is a US State and contains no states.
Kentucky is a state and contains no states.
United States of America has the largest city (New York)
New Jersey is a US State and contains no states.
Illinois is a US State and contains no states.
New Jersey is a US State and contains no other states or countries.
Virginia is a US State and contains no states.
The United States
Well Florida is a state there are no states in Florida Florida. is a state.
Texas is a state itself, therefore it contains no states. Perhaps you mean county, which is a political division within a state. The largest county in Texas is Brewster County.