The 2016 St. Louis, Missouri, population is 315,685. There are 5,096 people per square mile (population density).
The median age is 34.4. The US median is 37.4. 32.05% of people in St. Louis, Missouri, are married. 12.14% are divorced.
The average household size is 2.2 people. 20.35% of people are married, with children. 29.96% have children, but are single.
42.81% of people are white, 47.94% are black, 2.79% are asian, 0.20% are native american, and 0.27% claim 'Other'.
3.66% of the people in St. Louis, Missouri, claim hispanic ethnicity (meaning 96.34% are non-hispanic).
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