New Private Housing Structures Authorized by Building Permits for Polk County, IA was 4028.00000 Units in January of 2022, according to the United States Federal Reserve. Historically, New Private Housing Structures Authorized by Building Permits for Polk County, IA reached a record high of 5014.00000 in January of 2016 and a record low of 1879.00000 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for New Private Housing Structures Authorized by Building Permits for Polk County, IA - last updated from the United States Federal Reserve on May of 2024.