Buying a home in Firth, Idaho does not have to be difficult - Homes.com makes home buying a breeze. With 12 homes for sale in Firth, Idaho, you can search by price, bedrooms, neighborhood, and even by property type. Search Firth homes for sale, foreclosures, MLS listings, and more. Make an informed decision with Firth school data, neighborhood information, find Firth real estate agents, and research home values in Firth, ID. Homes.com has everything you need but the house keys.