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.