This research is aimed at the assessment of the factors that determine the Patronage of Islamic Crescent Co-operative Society. Survey research design was used and primary data was obtained using structured questionnaire. The study adopted the purposive technique with 170 sample size in an attempt to achieve the study objectives. The data was presented and analyzed using descriptive (mean, standard deviation, as well as, the minimum and maximum values) and inferential statistics (using Multiple Regression).The study found that level of knowledge and religiosity contributed significantly in the patronage of Islamic finance and investment products of Islamic crescent co-operative society whereby, attitude does not significantly contributed in patronage of Islamic finance and investment products of Islamic crescent co-operative society. The study recommended that Islamic Crescent Cooperative Society’s management should ensure that they sustain and continue to offer accurate services to their members to serve them better and support their patronage.