Osmanabad District (pronunciation: [usmaːnabaːd̪]) (Transliteration: Usmanabad Jil'hā) is an administrative district in the Marathwada region in the Indian state of Maharashtra. The district headquarter is located at Osmanabad. The District of Osmanabad derives its name from the last ruler of Hyderabad, the 7th Nizam, Mir Osman Ali Khan, of which the region was a part till 1947. This region was earlier part of The Hyderabad State until Independence.This primarily rural district occupies an area of of which is urban and has a population of 1,657,576 of which 16.96% were urban (as of 2011). Osmanabad district lies in the southern part of state. It lies on the Deccan plateau, about 600 m above sea level. Parts of the sina, Manjira and Terna River flow through the district. The district is located on the south side of the Marathwada region between latitude 17.35 to 18.40 degrees north, and latitude 75.16 to 76.40 degrees east. Osmanabad District is bordered by the Beed District to the north, Latur District to the east, Solapur District to the west, Ahmednagar district to the north-west and the Bidar and Kalaburagi districts of state of Karnataka to the south. Most of the district lies in the hilly areas of the Balaghat Range. The rainy season starts from mid-June and continues till the end of September. The climate is humid in October and November and dry and cool from mid-November to January. From February to June the climate is dry and becomes increasingly hot. During summer the temperature of Osmanabad district is low compared to other districts of Marathwada region. The average annual rainfall in the district is 760.40 mm. Temperature Max.: 42.1 °C; Min.: 8 °C In the 2011 census Osmanabad district had a population of 1,657,576, roughly equal to the nation of Guinea-Bissau or the US state of Idaho. This gave it a ranking of 298th among district of India (out of a total of 640). The district had a population density of . Its population growth rate over the decade 2001-2011 was 11.69%.