Linn County Iowa GISThis feature layer contains FEMA flood zones within Linn County, Iowa and surrounding counties. *** Note *** This information is sourced from FEMA. For current FEMA information, please see official FEMA data. Update Frequency As needed Additional Resources Visit Linn County, Iowa on the web. Visit Linn County, Iowa GIS on the web. Visit the Linn County, Iowa GIS portal . This site is updated as needed to reflect maps, apps, and data of interest from various County departments. Contact Information Questions? Contact the GIS Division by phone at 319.892.5250 or by email .ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/7a3bafc175814368b00adbc32a4cad24_0engLinn County, Iowa Open Data PortalPublicFEMA Flood Zone [Iowa--Linn County]Web servicesIowa--Linn CountyIowaLast Modified: 2022-10-20