Sully County Homes for Sale

There are 2 cities in Sully County which include Onida , and Agar . There are 2 zip codes in Sully County which include 57564 , and 57520 . View our Sully County real estate area information to learn about the weather, local school districts, demographic data, and general information about Sully County, SD. Get in touch with a Sully County real estate agent who can help you find the home of your dreams in Sully County. Use our mortgage calculator to see how much it would be to finance a home in Sully County. Not ready to buy yet? Find and compare apartments for rent in Sully County.