„Compony bordures argent and sable; below a chief Argent per pale, ahead charged with a farmer sable with plow sable sinister, rear a hammer sable saltirewise with a pick sable; vert above a fess wavy Argent horizontal, a wing-spreading swan Argent.“
The colours Argent and sable stand for the history of the municipality. The farmer with the plow remember on the first settlers, which were frankish farmers, in the 5th century. Hammer and pick symbolise the former coal mining and the swan with the fess wavy the location by the Ruhr river and its wetlands.
Das Alstadener Wappen
Eva Pfohl

constructed and added by Jürgen Krause
colors according to FIAV