Qalansua (Arabic قلنسوة‎; Hebrew קלנסווה‏‎) is a city (since 2000) in the Central District of Israel.

History
The village of Qalansua already existed by the time the crusaders appeared in the Holy Land, entering the chain of settlements along the Cairo-Damascus highway. The chronicles recorded the transfer of the castle of Calancois to the Order of the Hospitallers in 1128 by the knight Godefroy de Flujac. Apparently, the Hospitallers retained control of the castle for most of the period (with the exception of 1887-1891) until 1265, when it was occupied by the Mamluk Sultan Baybars. The ruins of the Crusader fortress have survived to this day.
In the 1870s, the population of the village was about 500 people. In 1882, Kalansua, mostly built up with adobe houses surrounding the ruins of the fortress, served as the residence of kaymakamu.
By 1945, the population of Kalansua exceeded 1,500 people, the surrounding lands were grown mainly cereals, as well as citrus fruits, bananas and other fruit crops. After the Arab-Israeli war of 1948-1949, Kalansua ended up on Israeli territory under the terms of the ceasefire agreement between Israel and Jordan. Since 2000, Qalansua has had city status.

Population and administration
According to the Israel Central Bureau of Statistics, the population for 2016 is 21,451. The population is almost entirely Arab and Muslim. The population is growing at a rate of 2.6% per year. About 45% of the population are children and adolescents under the age of 17, residents aged 65 and over make up only 3.3%.
There are 10 schools in the city, with a total of 185 classes; an average of 30 students per class. 42.6% of students graduating in 2012 completed the education program in an amount sufficient to obtain a matriculation certificate, 27.4% – in an amount sufficient to enter the university.
12 deputies are elected to the City Council. The mayor has been directly elected since 1978. In 2011, the current mayor of Qalansua, Mahmoud Hadjija, was arrested on charges of corruption and criminal conspiracy. The investigation into the Hadjiji case ended with a guilty verdict for him and his adviser Yusuf Meri.

Economy
About 6,000 residents of the city are employees, of which 46.5% earn less than the minimum wage. 617 residents of the city – private entrepreneurs. According to 2011 data, the average salary in the city is 5385 shekels (6264 on average for men and 3797 for women), the average monthly income of a private entrepreneur is 5500 shekels.
City budget revenues in 2011 amounted to 63,486 shekels, expenses – 64,111 shekels. The total debt of the city council is 28.5 thousand shekels.