The hypothesis developed in the paper is that the relation between race and space, under-explored in philosophy, is a powerful theoretical instrument for understanding racial injustices and can be used to renew racial categorisation in a more critical, transformative manner. It argues that only constructivism, in its 'interactive constructionism' version (Hacking 1999), can make sense of both concepts in a relevant way for political theory, and provide a general critical frame to study the relation between both concepts, thereby replying to the powerful arguments of racial scepticism. After specifying what such a position entails for the 'race' concept, the paper argues that 'space', itself conceived in a constructionist perspective, is a core element of current referents of 'race' in our folk conceptions. It shows that France, despite its pretence of racial blindness, is not a counter-example, but rather reinforces the hypothesis. Hence, space should be more thoroughly reinvestigated at an epistemological and theoretical level in exploring our racial thinking.