Marion County's GIS Program
Marion County’s GIS Program provides support for our users of spatial data and technologies. Within the county, we maintain an enterprise GIS data model, allowing users to connect and share content across the departments. Our primary mission is to maintain and serve current, accurate and authoritative spatial data in support of the activities of Marion County.
On this page you will find access to our online maps and applications. Our spatial data layers are available for download by following the link in the side menu.
Welcome to our new GIS portal. This site provides a central location to explore Marion County's maps and applications.
County Roads - 800 Scale
Roadmaps for the entire county provided at 1" = 800' scale
County Roads in cities & UGBs
Road maps within city and urban growth boundaries
Survey Graphic Index
Search survey records, roads and cadastral information.
Tax and assessment details for individual properties. this application also provides access to the Assessor maps.
Any feedback regarding this site? Please firstname.lastname@example.org.