Linn County Iowa GISThis feature layer contains planimetric polygons located within Linn County, Iowa and outside the City of Cedar Rapids boundaries. Examples of features found within this layer may include: Building footprints Sidewalks Driveways Edge of road pavement Paved parking For planimetric data within the City of Cedar Rapids boundaries, please contact the City GIS department. Update Frequency Approximately once a month 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/92ab8bfa4019418cb8c4b1eb0a0d5540_0engLinn County, Iowa Open Data PortalPublicPlanimetric Polygon (Public) [Iowa--Linn County]Web servicesIowa--Linn CountyIowaLast Modified: 2025-12-21