There are 128 Interior Designers in St. Louis County, Missouri, serving a population of 999,539 people in an area of 508 square miles. There is 1 Interior Designer per 7,808 people, and 1 Interior Designer per 3 square miles.
In Missouri, St. Louis County is ranked 40th of 115 counties in Interior Designers per capita, and 3rd of 115 counties in Interior Designers per square mile.