Ladue is an inner-ring suburb of St. Louis, located in St. Louis County, Missouri, United States. As of the 2010 census, the city had a population of 8,521.
Ladue has the highest median household income of any city in Missouri with a population over 1,000.
Ladue is located at 38°38′13″N 90°22′54″W (38.636889, -90.381722).
According to the United States Census Bureau, the city has a total area of 8.55 square miles (22.14 km2), all land.
Tilles Park is a large park within Ladue.
As of the census of 2010, there were 8,521 people, 3,169 households, and 2,538 families residing in the city. The population density was 996.6 inhabitants per square mile (384.8/km2). There were 3,377 housing units at an average density of 395.0 per square mile (152.5/km2). The racial makeup of the city was 94.1% White, 1.0% African American, 0.1% Native American, 3.1% Asian, 0.1% Pacific Islander, 0.3% from other races, and 1.4% from two or more races.