Winneshiek County Post Offices

107 S Maryville St
Calmar, Iowa 52132

206 E Greene St
Castalia, Iowa 52133

401 Heivly St
Decorah, Iowa 52101

107 Main St
Fort Atkinson, Iowa 52144

200 E Main St
Ossian, Iowa 52161

635 Railroad St
Ridgeway, Iowa 52165

211 S Main St
Spillville, Iowa 52168

Winneshiek County

There are 7 US Post Offices in Winneshiek County serving a total of 20,318 residents equating to 2,903 residents per post office. It's estimated that approximately 32,430 packages are handled across the 7 county post offices annually. Winneshiek County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 21,056. The county seat is Decorah.