While Großblankenbach had formerly belonged to the Counts of Schönborn, Kleinblankenbach had been an Electoral Mainz holding.
(as at municipal election held on 2 March 2008) The community's arms might be described thus: Gules a bar wavy argent, in chief a wheel spoked of six of the second, in base a lion passant queue fourchée Or standing on an abased partition per fess dancetty of three below which argent.
Until the 19th century, the river formed the border between two lordly entities, with Großblankenbach being ruled by the Counts of Schönborn.
Wine pressers in the community and Apfelwein from Blankenbach are known well beyond the Kahlgrund and look back on a long tradition.
[3] For the lime kiln that was built after 1900 on the Kahlgrundbahn railway line, the raw material was brought by a cableway from the limestone pits at Sommerkahl and Eichenberg.