Even though the landscape is rather mild, there are many very cliffy and steep rock faces due to the irregular bedding of sandstone and conglomerate.

The area of Weiler-Simmerberg consists of the "Gemarkungen" Ellhofen, Simmerberg and Weiler im Allgäu.

The following districts belong to the market town of Weiler-Simmerberg: The municipality celebrated the 1111th anniversary of its first mentioning in 2005.

The market town of Weiler-Simmerberg had been seat of a higher and lower court before 1805 and belonged to the Austrian authority of Bregenz-Hohenegg.

Since the signing of the peace treaties of Brünn und Preßburg in 1805, the town belongs to Bavaria.