Kent County with a population of 19,197.
Maryland County's population is 13,604.
The population density of Maryland County is 59.4 people per square kilometer.
About 73,650.
222,938
According to the U.S. 2010 Census, Montgomery County is the most populated county in Maryland.
According to census.gov, Calhoun County, Arkansas, has the least population at 5,535 people in 2007.
According to census.gov, Arthur County, Nebraska, has the least population at 356 people 2007.
According to census.gov, Jones County, South Dakota, has the least population at 1,055 people in 2007.
Highland County
According to census.gov, the 2007 population estimate for Prince George's County, Maryland is 828,770.
According to census.gov, Garfield County, Washington, has the least population at 2,050 people in 2007.
Petroleum County is the least populated county in Montana, with a population of around 500 people.