Floodplains and Flood Preparedness

For more information about floodplains in general see this informational handout prepared by the United States Geological Survey.

Is My Property Located in a Floodplain?

To determine whether your property is located in or near a floodplain, visit the DuPage County Parcel Viewer. Enter your address in the search box in the upper left hand corner. Turn on “Imagery 2019 Service” and “DFIRM 2019” layers by clicking on the check boxes. To determine whether the primary structure is located in a floodplain you may want to adjust the transparency level by clicking on the three dots of the “DFIRM 2019” layer. Please be aware that the map viewer contains a lot of detailed information, and may take some time to load.

The current FEMA Floodplain maps became effective August 1, 2019.

Please note: the location of the floodplain on the maps is approximate and based on elevations. To determine the exact floodplain boundary on your property a topographic survey may be needed. For more information please contact the Engineering Division at 630-834-8505.