Coastal areas and their communities are one of the most vulnerable components of urban existence. The balance of the environmental, economic, and sociocultural sectors is crucial to maintain their sustainability. This research focuses on assessing the level of sustainability of a coastal area, namely Kampung Sentra Bandeng Semarang, and its influence on the community's current economic activities. Data from field observations, interviews with the community, and secondary sources are components of this analysis. The Circles of Coastal Sustainability (CCS) method was used to assess the sustainability conditions at the study site. As a result, environmental and economic aspects are aspects that need special handling for future regional planning programs. There are many sustainability indicators that still need to be improved, especially in handling tidal flooding and land subsidence.