Background: social health refers to the individual evaluation and cognition of his/her performance in society and the quality of his/her relationships with other people, relatives, and social groups as a member of them. When a person is eligible for the social health, he/she can do its activities and social roles at the standard level and feel conjunction with the society and social norms. The aim of this study is determining the social health status of 18-29 years youth of Naqadeh city and the effective factors on it.

Methods: in this cross-sectional and descriptive-analytic study that was conducted in 2014, 400 people participated which were selected by simple random sampling method. The data collection tools include demographic specifications form, Keynesian social health standard questionnaire, and quality of life (WHOQOL_BREF), and communication skills. Data were analyzed by SPSS (20) software and by descriptive and analytic statistical tests.

Results: the social health average score was 97/1 among the studied youth and it was moderate. There were observed the statistical significant correlation between social health and communication relations (p=0.001), leisure time (p=0.001), and quality of life (p=0.001) variables. Besides, social health had significant correlation with age (p=0.001) and education (p=0.02) variables.

Conclusion: the social health is not desirable among the studied youth and designing and performing the promotion interventions are offered with an emphasis on age, education, communication skills level, the way of spending leisure time, and their quality of life.