The arms were granted on January 16, 1939 and continued in 1969.
The arms are canting, three small swords, or Saxen, and a mountain, Berg, in the base. Sassenberg was supposedly derived from Sachsenberg. The colours are derived from the colours of the State of Münster, to which the area historically belonged.
Literature : Stadler, 1964-1971, 8 volumes.