Kailahun is the capital of Kailahun District in the Eastern Province of Sierra Leone. Kailahun is a major business and commercial center of Kailahun District. The population was 13,108 in the 2004 census, a 2006 estimate of 18,411 and a current estimate of about 30,411. Kailahun lies in the far east of Sierra Leone, approximately 200 miles east of Freetown, about 51 miles north east of Kenema, and near the border of Liberia.