Linn County Iowa GISThis feature layer contains Linn County, Elections department precinct boundaries. Information within this layer is maintained by the Elections department within the Auditor's Office. Update Frequency Approximately once a week 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/ff3dc3d04fea4650aad2755488b55dff_0engLinn County, Iowa Open Data PortalPublicElections Precinct [Iowa--Linn County]Web servicesIowa--Linn CountyIowaLast Modified: 2026-01-04