Climbing Hill is an unincorporated community in Woodbury County, Iowa, United States. In Law, an unincorporated area is a region of land that is not a part of any Municipality. Woodbury County is a County located in the US state of Iowa. As of 2000 the population was 103877 The State of Iowa ( is a state in the Midwestern region of the United States of America. The United States of America —commonly referred to as the Its elevation is 1,135 feet (346 m), and it is located at (42. 3416581, -96. 0777952). The community was named by C. E. Ostrander, the first settler and postmaster, whose home was on high ground and could not be reached except by climbing a hill. The name was kept, though the community was moved several times and was finally located on level land around 1867. [1] Although it is unincorporated, it has a post office, with the ZIP code of 51015. A post office is a facility authorized by a Postal system for the posting receipt sorting handling transmission or delivery of Mail. The ZIP code is the system of Postal codes used by the United States Postal Service (USPS [2]