List of Roman tribes
Original tribes 
Tribes as of 242 BC 
In 242 BC, the official number of tribes was set at 35:
Urban tribes 
People of the city of Rome itself, typically belonged to the four urban tribes, which were the largest and had the least political power. These tribes were named for districts of the city.
Rural tribes 
Two of the tribes are unclear; the thirty-fifth tribe has been found listed as both Succusana and Pupinia.