Buying a home in Old Monroe, Missouri does not have to be difficult - Homes.com makes home buying a breeze. With 30 homes for sale in Old Monroe, Missouri, you can search by price, bedrooms, neighborhood, and even by property type. Search Old Monroe homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Old Monroe school data, neighborhood information, find Old Monroe real estate agents, and research home values in Old Monroe, MO. Homes.com has everything you need but the house keys.