Dimona is an Israeli city in the Negev desert, 30 kilometres to the south-east of Beersheba and 35 kilometres west of the Dead Sea above the Arava valley in the Southern District of Israel. In 2022 its population was 36,776. The Shimon Peres Negev Nuclear Research Center, colloquially known as the Dimona Reactor, is located 13 kilometres southeast of the city.