There are 7 US Post Offices in Bibb County serving a total of 22,771 residents equating to 3,253 residents per post office. It's estimated that approximately 36,345 packages are handled across the 7 county post offices annually. Bibb County is a county in the U.S. state of Alabama. As of the 23rd Decennial 2010 United States Census its population was 22,915. The county seat is Centreville. Its name is in honor of William W. Bibb, (1781-1820), the Governor of Alabama Territory, (1817-1819), and the first Governor of Alabama, (1819-1820, when he died), who is also the namesake for Bibb County, Georgia where he began his political career. It is a \"prohibition\" or dry county; however, the cities of West Blocton, Brent, and Centreville have all become \"wet\", by allowing the sale of alcoholic beverages. The Bibb County Courthouse is located in the county seat of Centreville."