Emergency: All St. Louis County offices are now open to the public.
What to know when visiting a county building
Information on COVID-19, vaccines and testing
 

Enterprise GIS

 
 

 

St. Louis County provides interactive apps, plat books, geospatial data, web services, and printable maps for citizens and businesses to discover, explore and utilize.

Apps
County Land Explorer
Data - Geospatial
Map Gallery
Plat Book
Web Services