A total of 1,000 acres were listed for sale in Iowa's Delaware County recently, representing a combined nearly $9 million in Delaware County farms and ranches for sale. Delaware County ranks 78th in the state for the combined amount of land currently advertised for sale. Among cities in Delaware County with land for sale, Manchester had the most land for sale. From an economic perspective, manufacturing and related services are the main sectors in Delaware County. Delaware County is Iowa's 35th biggest county (578 square miles). It's located in the Eastern Iowa region of the state.