St. Louis County office buildings will be closed Wednesday, June 19, in observance of the Juneteenth holiday.



Open Water Wetlands-Cattails

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St. Louis County is the local government unit (LGU) responsible for administration and enforcement of the Wetland Conservation Act outside the municipalities (cities). 

Landowners considering any construction or alteration within wetland areas should contact the St. Louis County Planning and Zoning Department or whoever the LGU is for their jurisdiction. Please see the wetland regional agency contact list for more information. 

Learn more about the Wetland Conservation Act (WCA).

Township Wetland Maps

Click the link above to access the County Land Explorer 'Environmental' theme map.

The wetland areas depicted on these maps are to be used only for reference purposes and the County is not responsible for any inaccuracies herein contained.