Keywords: Iowa US Congressional District 1 (since 2013).tif en Boundaries for Iowa ™s 1st United States Federal Congressional District 2014-05-15 15 54 37 GIS shapefile data created by the United States Department of the Interior as part of the 1 Million Scale geospatial data project Retrieved from http //nationalatlas gov/atlasftp-1m html openChapters chpbound 1 GIS congressional districts 2013 shapefile data was created by the United States Department of the Interior 2 Data was rendered using ArcGIS® software by Esri 3 File developed for use on Wikipedia and elsewhere by 7partparadigm PD-USGov Uploaded with UploadWizard Congressional district maps of Iowa |