|• Mayor||Ulf Stecher (CDU)|
|• Total||31.8938 km2 (12.3143 sq mi)|
|Elevation||11 m (36 ft)|
|• Density||680/km2 (1,800/sq mi)|
|Time zone||CET/CEST (UTC+1/+2)|
The German word Heide means "heath". In the 15th century four adjoining villages decided to build a church in the "middle of the heath". This remained the town's name to date. The exact foundation date is now unknown, but by 1447 Heide was already the main village of Dithmarschen. At this time Dithmarschen was an independent peasant republic. Heide became a town in the 19th century.
Heide has the largest un-built-upon market square in Germany, with 4.7 hectares. It is used primarily as a parking lot and has approximately 500 parking spaces. In 2016, the city staged 3 car-free Sundays on the market square for the first time.
The association soccer club Heider SV plays in the Oberliga Schleswig-Holstein (V).
- St. Jürgen church (1560)
- Water tower (1903)
- Museum of Dithmarschen history
- Brahmshaus, dwelling house of the ancestors of the composer Johannes Brahms, now a museum
- Klaus Groth (1819–1899) a Low German poet.
- Alfred Dührssen (1862–1933) a German gynecologist and obstetrician
- Rudolph Dirks (1877–1968), comic-strip artist
- Carl-Heinz Rodenberg (1904-1995) a German neurologist and psychiatrist, proficient in the murder of mental patients by the Nazis
- Fritz Thiedemann (1918–2000) a German equestrian
- Willi Gerdau (1929–2011) a German international footballer
- Julian Grundt (born 1988) a German former footballer