At Meramec Valley Bank, we dont want to be the biggest bank in town, just one of the best. So stop by and see for yourself why banking small is so much better. Our bank, located in West St. Louis County, offers services ranging from business banking and internet banking to personal loans and mortgages. With locations in Ellisville and Valley Park, we proudly offer our bank services to the communities of Ballwin, Fenton, and Chesterfield.