Although online social connectedness is increasing, many assumptions about online social network use still remain. For example, that offline social connectedness is superior to online social connectedness. This cross-sectional study addresses these assumptions by studying online and offline social connectedness in relation to happiness, in a sample of 293 young adults from Sweden, between the ages 18-48. Results show that both online and offline social connectedness was associated to happiness. Moreover, three groups varying on happiness did not differ on various forms of social connectedness; however, very happy individuals reported having more genuine online friends than all other groups. The implications of the study and future directions are discussed.