Singapore's 332 subzones represent the most granular level of the country's three-tier administrative division system. Subzones are nested within planning areas and serve primarily as statistical and urban planning units rather than governance entities. The Urban Redevelopment Authority (URA) uses subzones to organize demographic data, conduct detailed land use planning, and monitor urban development patterns across the island. These divisions help government agencies allocate resources, plan infrastructure projects, and track population distribution at a neighborhood level. While subzones do not have independent administrative powers or elected officials, they provide essential geographic frameworks for public services delivery, census operations, and socioeconomic analysis that inform national and local planning decisions.