In 2019, St. Louis County, MO had a population of 994k people with a median age of 40.4 and a median household income of $70,022. Between 2018 and 2019 the population of St. Louis County, MO declined from 996,945 to 994,205, a −0.275% decrease and its median household income grew from $66,778 to $70,022, a 4.86% increase.
The 5 largest ethnic groups in St. Louis County, MO are White (Non-Hispanic) (65.2%), Black or African American (Non-Hispanic) (24.3%), Asian (Non-Hispanic) (4.54%), Two+ (Non-Hispanic) (2.39%), and White (Hispanic) (1.79%). 0% of the households in St. Louis County, MO speak a non-English language at home as their primary language.
97% of the residents in St. Louis County, MO are U.S. citizens.
The largest universities in St. Louis County, MO are Washington University in St Louis (5,890 degrees awarded in 2020), Webster University (4,106 degrees), and University of Missouri-St Louis (2,887 degrees).
In 2019, the median property value in St. Louis County, MO was $214,300, and the homeownership rate was 69.3%. Most people in St. Louis County, MO drove alone to work, and the average commute time was 23 minutes. The average car ownership in St. Louis County, MO was 2 cars per household.