This study is aimed at examining the prevalence of premarital sex among adolescents between 13-19 years within Chorkor, Korle Gonno and Mamprobi communities in the Accra Metropolis. The study with a sample size of 268 used a descriptive approach and a combination of convenient and quota sampling methods. The study recommends the establishment of a school guidance and counselling unit to sensitize and advise students and parental monitoring of adolescent lives and the use of social media on mobile devices.