Iowa Department of TransportationRegional Planning Association (RPA) boundaries for the State of Iowa including contact information, location details and more.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/905f9f7d854d4bd7a0a4a52059999367_0engIowaDOT Open DataPublicRPA Border View [Iowa]Web servicesIowaLast Modified: 2025-10-21