St. Louis County GIS Open Data

St. Louis County provides GIS parcel and geospatial data to support business mapping needs. The County utilizes and maintains geospatial data for critical business operations. Below is GIS data that is available for free to download.

For more information on St. Louis County GIS or mapping applications please visit our website.

*To download data, click on Download Dataset, choose type and the download status will show in the My Activity button in top right corner.