Ottoman period Tammun's modern history dates from the 15th century. The village was founded by a group of people from the
Arabian Peninsula seeking to find a safe location in
Palestine with a view of other nearby localities. In 1596 it appeared in the
Ottoman tax registers as "Tammun", in the
nahiya of Jabal Sami in the
liwa of
Nablus. It had a population of 15 households and 3 bachelors, all
Muslim. The villagers paid a fixed tax rate of 33.3% on wheat, barley, summer crops, olive trees, occasional revenues, goats and beehives; a total of 5,450
akçe. Over the past four centuries, people from the towns of
Kafr Qaddum and
Halhul have settled in the village. In 1882, the
PEF's
Survey of Western Palestine described Tammun as "A good-sized village at the foot of the mountain, with open ground to the north. The village stands high, with olives to the south.
British Mandate In the
1922 census of Palestine, conducted by the
British Mandate authorities, Tammun had a population of 1,345, all Muslim. This had increased in the
1931 census of Palestine, when Tammun, (including
Atuf), had 316 occupied houses and a population of 1,599, again all Muslim. In the
1945 statistics, the population was 2,070 Muslims, with 98,080
dunams of land, according to an official land and population survey. 393 dunams were used for plantations and irrigable land, 33,181 dunams for cereals, while 157 dunams were built-up (urban) land.
Jordanian period In the wake of the
1948 Arab–Israeli War, and after the
1949 Armistice Agreements, Tammun came under
Jordanian rule. It was
annexed by Jordan in 1950. The Jordanian census of 1961 found 2,593 inhabitants in Tammun.
1967 war and aftermath Since the
Six-Day War in 1967, Tammun has been under
Israeli occupation. In 2023, the town was stormed by the IDF. The
Palestinian Islamic Jihad reported to have attacked Israeli forces during an IDF raid in
Tammun on 1 January 2025. On January 29, 2025, during
Operation Iron Wall at least 10 Palestinians were killed and several others wounded in an Israeli airstrike by the
IDF. On March 30, 2025, a 22-year-old Palestinian man was shot dead by undercover Israeli forces in a raid in the town. Four members of the Bani Odeh family were
shot dead by the Israeli military in the town on March 15, 2026. ==Geography and climate==