Degersheim has a population (as of ) of . , about 17.2% of the population was made up of foreign nationals. Of the foreign population, (), 40 are from Germany, 147 are from Italy, 275 are from ex-Yugoslavia, 27 are from Austria, 34 are from Turkey, and 183 are from another country. Over the last 10 years the population has decreased at a rate of -1.5%. Most of the population () speaks German (89.9%), with Italian being second most common ( 2.3%) and Spanish being third ( 1.8%). Of the Swiss national languages (), 3,551 speak German, 8 people speak French, 91 people speak Italian, and 6 people speak Romansh.