Delve is a municipality belonging to the Amt Kirchspielslandgemeinde ("collective municipality") Eider in the district Dithmarschen in Schleswig-Holstein, in northern Germany.The municipality covers an area of 15.85km2. Of a total population of 734, 364 are male, 374 are female (Dec 31, 2004). The population density of the community is 46/km2.