Montpelier, Vermont with about 8,000 people.
Pierre, South Dakota, is the 2nd least populous state capital in the United States. It has a population of about 14,000.
Vermont
The US state with the lowest population is Wyoming with 582,658 people. The capital of Wyoming is Cheyenne. Wyoming became a state on July 10, 1890.
Phoenix, Arizona has the largest state capital population in the United States, with over 1.6 million residents.
The state of the vatican city: rural population 0
Alaska, because it has the lowest population of people in general.
Honolulu, Hawaii is the state capital with the lowest elevation. Honolulu rises 18 feet above sea level.
Abuja
Alaska
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Kerala
The state with the largest population is California, and its capital is Sacramento. (see the related question)
Olympia is the capital of the U.S. state of Washington. The population of Olympia was 46,478 as of the 2010 census.
The state that has the lowest rate of crime in its capital city is Maine. Augusta is deemed the safest capital city according to the last U.S. Census, with Bismarck, North Dakota the second safest.