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Abstract
The purpose of this paper is to examine the hierarchy of urban centres in Saudi governorates using the rank and size rule. Also, determine the primacy governorate. This study applied different methods to examine the possibility of a primate governorates within the law of the primate city, the primacy of index, rank and size rule, and four-city index. The census data for the years 2004, 2010, and 2014 were collected from GASTAT. The results show that the population concentrated in Al-Riyad, then Jiddah, followed by Makkah Al-Mokarammh. Moreover, the Al-Riyad governorate is the dominant primacy governorate in the urban hierarchy in Saudi Arabia.