There are 8 US Post Offices in Fayette County serving a total of 188,978 residents equating to 23,622 residents per post office. It's estimated that approximately 301,630 packages are handled across the 8 county post offices annually. Fayette County is a county located in the U.S. Commonwealth of Kentucky. As of the 2010 census, the population was 295,803, making it the second-most populous county in Kentucky. Its territory, population and government are coextensive with the city of Lexington, which also serves as county seat. Fayette County is part of the Lexington\u2013Fayette, KY Metropolitan Statistical Area."