St. Louis County is nestled in the state of Missouri. With an area of 523 square miles, St. Louis County is one of the smaller counties in the state, while in terms of population it is at the top with 101,631 residents. St. Louis County's population density of urban makes it one of the least thickly populated areas in the state. The county's largest city is Florissant, with a population of 112,390.

St. Louis County is one of the most prosperous regions in the state. The median income for St. Louis County residents is $53,222, putting the region in at the top of all counties in Missouri. In keeping with this, the average house value in St. Louis County is $130,184, well above the state average of $90,296.    Continued below...