The Colony of Hong Kong is one of the most densely populated territories in the world. Over-all density is 13 persons per gross acre, and individual neighborhoods exceed 2,800. Residential floor space averages 155 square feet per household or 32 square feet per occupant. Unlike congested areas in the United States, however, Hong Kong has relatively low death, disease, and social disorganization rates. These data suggest that density standards recommended by American planners may be unrealistic as requirements for public health and social welfare.