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. Hardin County is anchored by Elizabethtown and Fort Knox. Central Kentucky location, strong infrastructure, and a blend of military community, manufacturing jobs, and fertile farmland make it attractive for buyers.