Since the 7th century, the Frisians came to this region to settle, including the land where Pellworm now lies. After many floods, the residents built dikes around Pellworm. This occurred as early as the 17th century. In the following centuries, several polders were added. The 18th century was a bad time for the islanders due to illness and new floods. This is when the Frisian language also disappeared from the island. Pellworm has always been an island of farmers. The first tourists only arrived around 1900. Nowadays, tourism is the most important source of income on Pellworm. The 'Nordseeheilbad' (spa) attracts many visitors.