There are 116 Beauty Spas in St. Louis County, Missouri, serving a population of 999,539 people in an area of 508 square miles. There is 1 Beauty Spa per 8,616 people, and 1 Beauty Spa per 4 square miles.
In Missouri, St. Louis County is ranked 21st of 115 counties in Beauty Spas per capita, and 2nd of 115 counties in Beauty Spas per square mile.