The problem of this study concerned the relationship between the academic achievement of students in Jordan state universities and the socioeconomic status (SES) of their families. A survey composed of questions regarding demographics, SES background, cultural factors, and accumulated grade point average (GPA) was administered by four Jordanian professors in four state universities in Jordan. Of the 620 surveys made, there were 609 usable surveys analyzed using the Statistical Package of Social Science SPSS/PC+. Data were sorted so that families' SES variables, namely fathers' and mothers' income, occupation, and education, and students' GPA were identified on a 9-point ordinal scale. Pearson's chi-square was used to determine whether relationships existed between parents' SES and with students' GPA. Spearman's correlation was also used to determine the direction and strength of the relationships. The same data were then compressed from 9 to a 3-point ordinal scale and were used to determine the relationship between studendts' GPA and their parents1 SES. For this purpose a one-way Analysis of Variance (ANOVA) was used. Five additional related questions concerned relationship between degree of religious commitment of parents, number of siblings, parents' kinship, parents1 educational aspiration, and reason for parents' educational aspiration, and students' GPA were identified on a 4-point ordinal scale and also tested using the one-way ANOVA, the Tukey/Kramer method, and the Eta coefficient.