Union County SD Real Estate & Homes For Sale

The data relating to real estate for sale on this web site comes in part from the Internet Data Exchange Program of the REALTOR® Association of the Sioux Empire, Inc., Multiple Listing Service. Real estate listings held by brokerage firms other than Zillow, Inc. are marked with the Internet Data Exchange™ logo or the Internet Data Exchange thumbnail logo (a little black house) and detailed information about them includes the name of the listing brokers. Information is deemed reliable but not guaranteed. Copyright 2026 REALTOR® Association of the Sioux Empire, Inc., Inc. Multiple Listing Service. All rights reserved.

Information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing information is deemed reliable, but not guaranteed.