Dakar is the top region by urban population in Senegal. As of 2011, urban population in Dakar was 2.58 million persons that accounts for 42.24% of Senegal's urban population. The top 5 regions (others are Diourbel, Thies, Ziguinchor, and Saint-Louis) account for 81.85% of it. Senegal's total urban population was estimated at 6.1 million persons in 2011.