View Jefferson County MLS Listings available in Kentucky. A diverse county with lots to offer, Jefferson County is home to Louisville, Jeffersontown, Shively and Lyndon, all of which sit in Kentucky's Bluegrass Region. Kentucky's most populous county, Jefferson County offers residents and home buyers a number of neighborhoods and communities to choose from. Jefferson County MLS Listings offer properties of all types -- from condos, patio homes and townhouses to single-family homes, luxury estates and acres of open farmland. Jefferson County has so much to offer in terms of local amenities and resources - it's an excellent investment opportunity for any home buyer or investor. Contact Semonin Realtors for more information about Jefferson County MLS Listings and Louisville Homes for Sale.