Welcome to the St. Clairsville Area Chamber of Commerce, a business organization with a community heart. The Chamber of Commerce is located on Main Street in St. Clairsville, Ohio. With a population of just over 5,000 people, St. Clairsville is the County Seat of beautiful Belmont County. St. Clairsville is known for its great restaurants, shopping venues, educational and sporting opportunities and part of the booming oil and gas industries. Our Chamber, however, is more than just one town or one city. Instead, the St. Clairsville Area Chamber of Commerce serves businesses, organizations, and individuals from around Belmont County and the greater Ohio Valley region. With representative businesses from Barnesville, Bellaire, Shadyside, Martins Ferry, Wheeling, and more, we are plugged-in and connected to what makes this whole region great!