Saint Louis County
Located in the far eastern portion of the U.S. state of Missouri. It is bounded by the city of St. Louis and the Mississippi River to the east, the Missouri River to the north, and the Meramec River to the south. As of the 2016 Census Bureau population estimate, the population was 998,581 making it the most populous county in Missouri.
Located in the southern region of metropolitan St. Louis and offers its visitors a variety of natural and historic attractions. Human habitation of Jefferson County goes back to 10,000 B.C. and visitors can investigate the Clovis culture and megamammals at Mastodon State Historic Site. The more recent Mississippian culture is in evidence at Washington State Park along with impressive Civilian Conservation structures from the 1930's. At Sandy Creek Bridge State Historic Site visitors can see one of only four remaining covered bridges left in Missouri. Nature lovers will find a number of good sites to visit including Washington State Park and several Conservation areas.