Abstract
Rapid urbanization in Southeast Asia has created a paradox between severe environmental degradation and the often-muted concern of urban residents. The objective of this study is to explain this disconnect by comparatively analyzing the structural factors that shape environmental perceptions among the urban middle class in Jakarta and Phnom Penh. Drawing on survey data from over 2000 households, the study reveals two distinct narratives. In Jakarta, the middle class reports a surprisingly low frequency of environmental problems, suggesting a "perception gap" driven by physical and social insulation from the city's harshest realities. Conversely, in Phnom Penh, residents report higher concern, but their widespread silence when asked for solutions points not to apathy but to a sense of powerlessness within a top-down governance system. We argue that apparent environmental indifference is not a uniform phenomenon but a product of distinct structural forces. The paper's contribution is to illustrate how urban fragmentation, class-based insulation, and perceived political agency shape the relationship between environmental reality and citizen concern.