Today, student attraction is one of the most important problems for universities. Universities have to try to attracting more volunteers to meet their financial needs. This study has been done in order to investigate factors influencing the university choice among pre-university students in the provinces of Gilan and Mazandaran in the north of Iran. Survey was used for collecting data, and data were quantitative. Data has been collected via a questionnaire with reliability 0.79, which calculated with rerun and Spearman correlation. Cluster method sampling was used. Findings showed that economic factors, university related factors, personal factors, and social factors influence student's choice of university respectively. All effects sizes were at the high and very high level. For determining effect sizes, non-parametric method were used.