Population 15 years and over

Kŏḷamba is the top region by population 15 years and over in Sri Lanka. As of 2012, population 15 years and over in Kŏḷamba was 1.81 million persons that accounts for 11.95% of Sri Lanka's population 15 years and over. The top 5 regions (others are Gampaha, Kuruṇægala, Mahanuvara, and Kaḷutara) account for 44.51% of it. Sri Lanka's total population 15 years and over was estimated at 15.2 million persons in 2012.