There are 160 Auto Parts & Accessories Stores in St. Louis County, Missouri, serving a population of 999,539 people in an area of 508 square miles. There is 1 Auto Parts & Accessories Store per 6,247 people, and 1 Auto Parts & Accessories Store per 3 square miles.
In Missouri, St. Louis County is ranked 103rd of 115 counties in Auto Parts & Accessories Stores per capita, and 4th of 115 counties in Auto Parts & Accessories Stores per square mile.