Eelgrass (Zostera marina) and surfgrass (Phyllospadix spp.) are submerged aquatic plants with recognized ecological value and management protections. This dataset summarizes eelgrass and surfgrass occurrence using data from the ShoreZone Inventory. These seagrasses are classified as being patchy (less than 50%) or continuous (greater than 50%) along each unit of shoreline (an area with similar physical characteristics). The majority of the shoreline is described by line data, polygon features exist in some areas with extensive shallows. The ShoreZone Inventory includes all saltwater shorelines statewide. It was completed between 1994 and 2000 using aerial videography collected at low tide.