Genealogy Trails

South Dakota

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Union County

South Dakota

History and Genealogy

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Alcester - Beresford - Elk Point (county seat)
Jefferson - North Sioux City


* County Seat

Unorganized Territory


Union County Map

County Seat: Elk Point
Year Organized: 1862
Square Miles: 460

Courthouse info:
209 East Main St., Suite 250
County Courthouse
Elk Point, SD 57025-0000
Phone: (605) 356-2041

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Surrounding Counties:

Clay - Lincoln

Plymouth County Iowa - Sioux County Iowa

Dakota County Nebraska - Dixon County Nebraska

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