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Elmer A Smith (Postmaster)
elmer.a.smith@usps.gov
801 W 29th St
South Sioux City, NE 68776
South Sioux City, NE 68776
The South Sioux City Post Office is located in the state of Nebraska within Dakota County. This location serves 15,447 South Sioux City residents with a median income of $40,200. It's estimated that approximately 24,655 packages pass through this post office each year.