Floodplain Management

All of the City of Marathon is identified as a coastal floodplain and may be subject to flooding.  The coastal areas and the many canals in the City of Marathon make properties located near these areas prone to flooding.If you are buying property we encourage you to request flood information before buying or selling property and land in the City.

You can check here to see your flood zone.  The department is beginning to acquire and maintain elevation certificates for properties that have been substantially improved or constructed in the City of Marathon.

Find your floodplain maps here: https://msc.fema.gov/portal