This document provides population data for 166 municipalities in Rio Grande do Norte, Brazil for the years 2010 and 2000. It shows the total population for each municipality for both years, with Natal having the highest population in 2010 of 803,811 and Mossoró having the second highest population of 259,886 in 2010. Overall, the total population of Rio Grande do Norte was 3,168,133 in 2010.