As of 2023[update], the town of Steinsel, which lies in the west of the commune, has a population of 2,549. Other towns within the commune include Heisdorf and Mullendorf.[1]
Like most of Luxembourg, Steinsel has an oceanic climate. On 25 July 2019, Steinsel recorded a temperature of 40.8 °C (105.4 °F), which is the highest temperature to have ever been recorded in Luxembourg.[2]
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