Bukit Timah Planning Area has a population of 85,900 (2025), covering 17.53 sq km with a density of 4,900 people/sq km. The population is affluent, comprising 46,140 females and 39,760 males. Age groups: 0-14 (14,750), 15-64 (55,600), 65+ (15,610). Ethnic composition: Chinese (67,400), others (5,980), Indians (3,840), Malays (640). The area features luxury homes and low public housing.