Rhode Island (USA) is 17 times larger than Liechtenstein.
Area: 160 km2 World Factbook
Population: 37,313 (July 2014) World Factbook
Liechtenstein, officially the Principality of Liechtenstein, is a doubly landlocked alpine country and a microstate in Central Europe, bordered by Switzerland to the west and south and by Austria to the east and north. Wikipedia
Rhode Island, officially the State of Rhode Island and Providence Plantations, is a state in the New England region of the United States. Rhode Island is the smallest in area, the eighth least populous, but the second most densely populated of the 50 US states behind New Jersey. Wikipedia