Linn County Iowa GISThis feature layer contains Linn County, Iowa buildings on leased land geometry joined to County tax system information. Buildings on leased land geometry is maintained by the Real Estate Division within the Auditor's Office. Update Frequency Approximately daily Additional Resources Visit Linn County, Iowa on the web. Visit Linn County, Iowa GIS on the web. 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/d4f5954f19084047b4e0f64611f5c5c9_0engLinn County, Iowa Open Data PortalPublicReal Estate Building on Leased Land (BLL) [Iowa--Linn County]Web servicesIowa--Linn CountyIowaLast Modified: 2026-01-08