PEOPLE OVERVIEW : The 2016 Morgantown, West Virginia, population is 30,708. There are 3,076 people per square mile (population density). Family in Morgantown, West Virginia. The median age is 23.7. The US median is 37.4. 22.86% of people in Morgantown, West Virginia, are married. 7.34% are divorced. The average household size is 2.33 people. 25.57% of people are married, with children. 10.53% have children, but are single. Race in Morgantown, West Virginia. 84.96% of people are white, 5.64% are black, 4.17% are asian, 0.23% are native american, and 0.21% claim 'Other'. 2.59% of the people in Morgantown, West Virginia, claim hispanic ethnicity (meaning 97.42% are non-hispanic).