Subject area	Social sciences
More specific subject area	Behavioral psychiatry
Type of data	Tables
How data was acquired	223 people with a history of substance abuse disorder in three cities of Kerman province completed a demographic form and Young׳s Internet addiction questionnaire, containing 20 questions.
Data format	Raw and analyzed
Experimental factors	For all questions in the questionnaire, the scoring was done by a Likert Scale of 1–5.
Experimental features	Based on the Internet addiction, the participants were classified into three groups: minor addiction, moderate addiction, and severe addiction.
Data source location	Kerman, Kerman province, Iran.
Data accessibility	Data are included in this article
Related research article	J.-Y. Yen, C.-F. Yen, C.-C. Chen, S.-H. Chen, C.-H. Ko, Family factors of Internet addiction and substance use experience in Taiwanese adolescents, CyberPsychology & Behavior. 10 (2007) 323–329 [1].