Despite the growth and expansion of street vending business along with its economic support to the poor urban dwellers, much facts regarding characteristics and general operations of each group is not known. Thus, this study intended to characterize street vendors in Dar es Salaam city, Tanzania, to unveil their characteristics, challenges and needs of each specific category. The study employed a mixed methods approach with a sample of 100 street vendors sampled conveniently. Findings indicate that, street vending business involves individuals of diverse characteristics in terms of gender, education, economic status, marital status, cultural practices among others. It was further revealed that, the operations of street vendors are different and the difference emanate from the nature of what one vends. Lack of training, lack of legal status, lack of recognition by different financial institutions are some of the general challenges however, each group had its pressing challenges. The study concludes that it is important to understand different characteristics of street vendors across the country so that measures taken to help them are relevant to their operations. Findings imply that, when dealing with street vendors, one should look at them differently because they possess different characteristics. Efforts to resolve their challenges thus, should be category specific.