Darwin M Stromseth (Postmaster)
darwin.m.stromseth@usps.gov
405 E Kemp
Watertown, SD 57201
Watertown, SD 57201
The Watertown Post Office is located in the state of South Dakota within Codington County. This location serves 24,983 Watertown residents with a median income of $45,892. It's estimated that approximately 39,876 packages pass through this post office each year.