21, 2009, a clash between the Sawafta clan and another city clan left a member of the former dead and 38 others injured. Five homes were also burnt and Palestinian Security Forces arrested five people in connection to the death. Geography Tubas is located in the northern West Bank with an elevation of above sea level, whereas most of the Tubas Governorate is located within the Jordan Valley to the south. In a 1945 land survey, Tubas along with nearby Bardala and Kardala consisted of 313,123 dunams (31,312 hectares) of which 220,594 was Arab-owned and the remainder being public property. , its total land area consists of 295,123 dunams (29,512 hectares), of which 2,271 is classified as built-up, roughly 150,000 used for agricultural purposes and about 180,000 has been expropriated by Israel for military bases and buffer zone. Tubas is located to the northeast of Nablus, and west of the Jordan Valley. Nearby localities include the town of Aqqaba to the north, Tayasir and Aqabah villages to the northeast, Ras al-Far'a to the southwest, the Palestinian refugee camp of Far'a to the south and the al-Bikai'a village cluster to the southeast. It has a moderate climate; the summer is hot and dry, and the winter is cold and wet. The average annual temperature is , and the average annual humidity rate is 56%. Demographics About 1,100 residents fled Tubas after the 1967 Six-Day War mostly to the Souf refugee camp in Jordan, while 260 immigrated there and in 1981 its population was 5,300. In the Palestinian Central Bureau of Statistics' (PCBS) first official census in 1997, Tubas had a population of 11,760 inhabitants. The gender make-up was 50.8% male and 49.2% female. Tubas has an overwhelmingly young population with 52.7% of the city's residents below the age of 20. People between the ages of 20 and 34 constitute 24.7%, 17.7% between the ages of 35 and 64, while people above the age of 64 constituted 4.9% of the population. The census also revealed that refugees made up 6.1% of the total residents. In the 2007 census by the PCBS, Tubas had a population of 16,154, increasing around 33% from 1997. The city represents roughly a third (33.4%) of the Tubas Governorate's total population. The city's modern-era founders, the Daraghmeh clan, constitute 70% of Tubas' inhabitants. The clan has several smaller branches, including the Mslamany, Abd al-Razeq and Abu Khazaran families.