Ionia, IA

ZIP code 50645 encompasses the small town of Oelwein, Iowa. Known for its rich railroad history, Oelwein is home to the Hub City Heritage Corporation which preserves this heritage with a museum and historic displays. The town also features Veterans Park, a tribute to local servicemen and women. Residents and visitors alike can enjoy the quaint charm of Oelwein's downtown area, complete with local shops and restaurants.