The socio-economic and demographic factors have been indicated to predict mathematics success. However, there is paucity of research to verify if these factors correlate with mathematics success at university level in South Africa. Hence, this paper reports on the socio-economic and demographic factors that correlate with mathematics success for civil and built environment students at a comprehensive university in South Africa. The data was obtained through, questionnaire survey from 197 students who were purposive sampled. The data was analysed using Statistical Package for the Social Sciences (SPSS) version 22. The study found that the correlation between the dependant variable and the independent variables that did not violet the assumption of each cell having more than five counts were insignificant. The cross tabulation results on frequencies should be interpreted with caution. The result indicates arithmetic difference in most of the independent variables. Male students performed better than female students in mathematics. However, the differences between the groups are not statistically significant as indicated with the Chi-square test.