Heide is situated at an elevation of 7 m on the western edge of the heathe area Schlesie-Holsteinische Geest in the cenre of Germany's state of Schlesiwg-Holstein. The municipality has a population of 21,500 (2020) and consists of the localities Benewold, Dellweg, Duvenheide, Hochfeld and Süderholm.
Uppe de Heyde ws first mentioned in a docuent dating from 1404. According to a chronicle of the 15th century, the villages Rickelshof, Lohe, Wesseln and Rüsdorf had decided to build a chapel in their midst 'in the heath' (German: Heide), which became the origin of the name. Already in 1434 it was mentioned as the centre of a peasants' republic. In 1447 it was elected as the seat of a court and thus became a central place in the area. The peasants' republic of Dithmarschen ended in 1559 and thereafter became part of the possession of the dukes of Schleswig-Holstein-Gottorf. Since then, the former meeting place was used only as a market square; with a size of 4.6 hectares, this square is the largest of its kind in Germany. The districts Norderdithmarschen (with Heide as administrative cenre) and Süderdithmarschen (Meldorf) were merged in 1932 (with Meldorf as the new administrative seat), but the district was dissolved again already in 1933. In 1970, the two districts were merged again and in a plebiscite Heide was elected as the new district town. The neighbouring community Rüsdorf was merged into Heide in 1924; Süderholm followed in 1968. 1934 Süderholm was separated again and divided into the municipalities Bennewohld and Süderholm. Bennewohld was then merged with Süderholm in 1943, and in 1967 Süderholm-Bennewohld voluntarily merged into Heide again.
The picture on glass no. 4016 [left] shows the inn