Union County sits at South Dakota’s southeastern tip, bordered by both Iowa and Nebraska, and was organized in 1862. Its county seat is Elk Point, while Dakota Dunes, Jefferson, and Alcester are other major communities. The county is part of the Sioux City metropolitan area, making it one of the state’s most prosperous and fastest-growing regions. The Missouri River forms its southern boundary, adding scenic beauty and fertile soil. The economy blends agriculture, logistics, and suburban development tied to Sioux City. The area is urban-suburban, especially around Dakota Dunes, where upscale neighborhoods line the river. Home prices range widely: $300 K–$450 K in traditional towns, but $500 K–$800 K + for luxury homes in Dakota Dunes. Building new runs $230–$260 per sq ft, typically $450 K–$550 K. Union County’s location—15 minutes from Sioux City and under an hour from Sioux Falls—makes it ideal for commuters and families. With riverfront beauty, low taxes, and modern amenities, it’s one of South Dakota’s premier residential counties.
Union County Real Estate Listings
Union County sits at South Dakota’s southeastern tip, bordered by both Iowa and Nebraska, and was organized in 1862. Its county seat is Elk Point, while Dakota Dunes, Jefferson, and Alcester are other major communities. The county is part of the Sioux City metropolitan area, making it one of the state’s most prosperous and fastest-growing regions. The Missouri River forms its southern boundary, adding scenic beauty and fertile soil. The economy blends agriculture, logistics, and suburban development tied to Sioux City. The area is urban-suburban, especially around Dakota Dunes, where upscale neighborhoods line the river. Home prices range widely: $300 K–$450 K in traditional towns, but $500 K–$800 K + for luxury homes in Dakota Dunes. Building new runs $230–$260 per sq ft, typically $450 K–$550 K. Union County’s location—15 minutes from Sioux City and under an hour from Sioux Falls—makes it ideal for commuters and families. With riverfront beauty, low taxes, and modern amenities, it’s one of South Dakota’s premier residential counties.