South Africa is divided along race lines and this has made social integration difficult to achieve in the nation. The aspiration for the rainbow nation since the end of apartheid has been a country united in its diversity. Research evidence shows that interracial trust and interaction are still very low in the nation. This study set out to examine the determinants of support for social integration in South Africa. The variables of perceived improvement in race relations, social distrust, and racial identification were examined. Data were sourced from the South African Social Attitudes Survey 2017. Participants were 2,946 men (38.9%) and women (61.1%) with the age range of 16 to 99 years. Data analysis showed that perceived improvement in race relations, social distrust, and racial identification were all associated with increased support for social integration. However, a low level of social distrust provides the best outcome for support for social integration. Equally, identifying with one's racial group is likely to be beneficial for increasing social contact between groups. Findings were discussed based on the peculiarity of South African society and existing literature. The implication of the findings for policies and programmes to facilitate social contact and social cohesion was emphasised. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement.