This floodplain tool contains GIS information to help identify the Federal Emergency Management Agency
(FEMA) designated 100-year floodplain in Missoula County outside of the Missoula City limits.
For floodplain information within the City of Missoula, contact the City Floodplain Administrator at 552-6625.
This GIS information does not imply that the subject property will or will not be free from flooding or damage. A property not
in a designated 100-year floodplain may be damaged by a flood greater than predicted by FEMA or from a
local drainage problem not shown on the FEMA Floodplain Map. Reliance on this GIS information does not create liability
on the part of Missoula County or any Office or employee thereof from any damage that results from reliance on this information.
Amendments to the floodplain maps are approved by FEMA through the Letter of Map Change (LOMC) process. Properties with
LOMCs remain subject to Missoula County Floodplain Regulations but are exempt from federal flood insurance requirements.
Properties with LOMCs available from Missoula County may be selected in the tool.
Federal flood insurance may be required for improvements located in the designated floodplain. The lending institution
is responsible for making that determination. Elevation Certificates may be used to determine the cost of flood insurance.
Properties with elevation certificates available from Missoula County may be selected in the tool.
If the subject property is located within the designated floodplain or a LOMC has been approved, a floodplain development
permit may be required. Contact the County Floodplain Administrator at 258-4841 or by email firstname.lastname@example.org.
To move the map press and hold the left mouse button on top of the map to drag it in the desired direction. You can zoom in or out using your mouse center scroll wheel, or alternatively using the zoom in/zoom out
buttons in the lower left corner of the map. Double-clicking the left mouse button will zoom into the map one step.
To search for an address enter it into the 'Address' search box in the upper left corner of the map. Press the enter key to begin your search. If an address is found in the database a list will be
presented. Click the 'Zoom' link next to the address of interest to show the address.
You can change the layers shown in the map by opening the 'Layers' dialog. From here you can toggle the various
layers such as Roads, Address Points and City/County boundaries. You can view the map legend by clicking the 'Legend' tab.
You can also bookmark your location in the 'Bookmarks' tab.
You can create a 8½ x 11 PDF (either portrait or landscape) of the map view by clicking the print icon in the upper right corner of the map. Choose your print options in the displayed dialog and click 'Print'...once the
printing process completes you will see a link to open the new PDF.
Missoula County Floodplain Administrator at 406-258-4841 or by email email@example.com.
This parcel appears to be affected by FEMA's new Digital Flood Insurance Map (DFIRM) flood zone designations for the Swan River effective March 7, 2019.
Use this map for flood insurance determinations only.
For permitting, subdivision, and subdivision exemption purposes,
for FEMA's Swan River DFIRM flood zone designations.
If you have questions about these maps, contact the Missoula County Floodplain
Administrator at 406-258-4841 or by email at firstname.lastname@example.org
This flood tool includes FEMA approved Letters of Map Change for properties outside of City limits.
Utilizing this tool for floodplain determinations within City limits is at the discretion of the user. Missoula County is not responsible for
and errors and ommissions. Check the legal records!