Linn County Iowa Open Data Portal

Open Data Portal Connecting users with GIS information Welcome to the Linn County, Iowa GIS Open Data Portal. This site contains open access to geospatial content within Linn County, Iowa. Use the Search for Data window above to search for a dataset based on keywords. Datasets of similar content by are organized into categories below. Datasets are available for download in various formats. Options for consuming services in GeoJSON or GeoService format are available for most datasets. Don't want to download an entire dataset? Not a problem. Filter data by attribute values using the Data tab for a layer or use the map to zoom to an area of interest and be sure to specify you want to download a filtered dataset when retrieving content. Explore Data Categories Popular open data categories are shown below. Datasets found within each category are similar in nature. Can't find what you're looking for? Use the Search for Data window at the top to search for datasets based on keywords. Note: FEMA datasets found within the Hydrography category are NOT maintained by Linn County. The County extracts these datasets on a bi-annual basis. For current FEMA data, view the official National Flood Hazard web map. Packaged Geodatabase Datasets Packaged Shapefile Datasets Imagery Land Records Education Topography Hydrography Elections Popular Datasets Below are a few of the more popular datasets users often request. Click on a card to explore the dataset in more detail. View dataset features by zooming to an area of interest, or view the attributes of a dataset to learn more about the data behind the geometry. Parcel Ownership Address Point Road Centerline Boundary View Explore Linn County parcels with ownership and other supplemental information View Explore Linn County site address points, our most accurate means of locating an address View Explore Linn County road centerlines, including address ranges and road classification View Explore Linn County incorporated and unincorporatedboundaries Featured Applications Below are featured map applications found on the Linn County GIS Portal site. Apps provide intuitive access to information and tools for citizens to understand our community. We recommend exploring the apps below as well as visiting our GIS Portal site for more maps and apps. Land Records Imagery Download Flood Hazards Printable Maps View Explore Linn County, Iowa detailed land records View Download our most recent source imagery tiles View Browse FEMA data to see if a property is within flood hazard areas View Looking for a hard copy map?Explore the Printable Maps app. Explore Linn County GIS Portal

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