Heiligenstedtenerkamp is a municipality located in the district of Steinburg within the German state of Schleswig-Holstein. It is notable for its unique nomenclature, holding the record for the longest name among all German municipalities composed entirely of letters, totaling 21 characters.
The municipality ranks eleventh on the list of smallest area municipalities in Germany. Despite its small size, Heiligenstedtenerkamp maintains a high population density that is comparable to major cities and urban areas. This demographic concentration is similar to that found in the nearby town of Itzehoe.