14. Champaign-Urbana, Illinois.The resigned cost-of-living are 9.3percent below the national typical in Twin Falls. Champaign-Urbana is in main Illinois, and it has a people of 237,849. The location brings people of all age groups, because it’s a university city, but 21.6 % of inhabitants become between 45 and 65. Truly an easily affordable option since