The towns of Carlstadt, Moonachie, Little Ferry and a portion of South Hackensack in Bergen County, NJ were severely impacted by super storm Sandy. This study attempts to identify areas most vulnerable to flooding within a 5600 acre urban area in Northern New Jersey.  Two different approaches that used cost distance analysis and overlay analysis of topography, storm water infrastructure, ditch networks, and land use were evaluated against recorded high water marks and a NJDEP model of water depths during Sandy.  The result is a flood vulnerability index map showing areas in need of fortification to prevent future flooding due to sea surge events and a methodology that may be used to assess vulnerability to sea surge flooding in other areas with similar characteristics.