Administrative Divisions

Speaking of administration, here is how Rwanda is administratively divided: 5 provinces North, South, East, West, and the capital, Kigali, are subdivided into 30 districts, which are further subdivided into sectors, then into cells, and finally, there is the Umudugudu or "village", which in an urban American setting would probably be called the "block." Here's the overview in all official languages:

English: Province > District > Sector > Cell > Umudugudu
Francais: Province > District > Secteur > Cellule > Umudugudu
Kinyarwanda: Intara > Akarere > Umurenge > Akagari > Umudugudu

Down to the Cell level, boundaries are known. The Midugudu (plural of Umudugudu), however, are not mapped, their boundaries are the local knowledge of their inhabitants and certainly of the Umudugudu chief.