Fayette County is home to Lexington, Kentucky's second-largest city and the heart of the Bluegrass Region. Known for horse farms, rolling pastures, and strong land values, Fayette County offers urban amenities alongside agricultural heritage. County seat: Lexington. Discover prime land opportunities in Mercer County, nestled in the heart of Kentucky's scenic Bluegrass region with its seat in historic Harrodsburg. With a population of around 22,430, this county offers rolling hills and fertile soil, ideal for agricultural pursuits and building your dream homestead amidst a rich historical landscape.