The following is a list of the top five smallest US states by population. The figures given below are based on the census dated April 1, 2010.
The Top Five
The state with the smallest population is Wyoming. The April 1, 2010 census put the population at 563,626. The 2000 census showed a population of 493,782. At number two is Washington, D.C. it has a population of 601,723.
At number three is Vermont with a population of 625,741. North Dakota is ranked number four. Its population has been estimated to be 672,591. Alaska is ranked number five. The population has been estimated to be 710,231.
The Rest of the Top Ten
At number six is South Dakota with a population in 814,180. Number seven is Delaware with a population of 897,934. Montana is ranked number eight. The population has been put at 989,415. The number nine slot belongs to Rhode Island. Its population has been estimated to be 1,052,587. Hawaii is at number ten. It has a population of 1,360,301.
The Top Five Smallest US States & Territories (as of April 1, 2010)
If other US territories are included, the rankings of the list of the top five smallest US states by population would be different. The least populated would be American Samoa with a population of 65,628. Number two would be Northern Mariana Islands with a population of 88,662.
The third spot would belong to the U.S. Virgin Islands. It has a population of 109,825. Guam would be ranked number four. Its population is 178,430. They would be followed by Wyoming at number six, Washington, D.C. at number seven and Vermont at number eight. Number nine and ten would be North Dakota and Alaska, respectively.
Wake Island has lees than 300 inhabitants. Most of them are involved or work with the United States Air Force. However, they are not included in the list because residency is not full time.
The population of the United States is roughly 310 million. According to 2009 estimates, the states and the District of Columbia made up 307,000,000 million of the population. The rest come from other US territories.
Based on the Bureau of Census stats, the 9 most populated states constitute 50% of the whole population. The 25 least populated states make up a sixth of the whole population.
The rankings on the list of the top five smallest US states by population are of course subject to change. Changes are bound to happen more quickly as more people migrate to the States.