Dadu (Sindhi: دادو), (Urdu: دادو‎) is a district of Sindh Province, Pakistan. Dadu District was created in 1933 by the British Indian administration by merging Kotri and Kohistan tehsils from Karachi District and Mehar, Khairpur Nathan Shah, Dadu, Johi and Sehwan tehsils from Larkana District. The population of the district is 1,688,810 according to a 1998 census report. The rural and urban population of the district constitutes 79% and 21% of the total population respectively. The area of district is 19,070 square kilometers divided in seven talukas yielding population density of 88.6 persons per square kilometre. The average household size of the district is 5.5 persons, and 6.3 in urban areas. More than 73% of the housing units in Dadu District are single room houses. The average annual rainfall in the district is about 120 millimeters. The total forested area is 217,000 hectares yielding timber and firewood.